K150565 · Hitachi Medical Systems America, Inc. · JAK · Sep 30, 2015 · Radiology
Device Facts
Record ID
K150565
Device Name
Supria Whole-body X-ray CT System
Applicant
Hitachi Medical Systems America, Inc.
Product Code
JAK · Radiology
Decision Date
Sep 30, 2015
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1750
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The Supria system is indicated for head, whole body, and vascular X-ray Computed Tomography applications in patients of all ages. The images can be acquired in either axial, helical, or dynamic modes. The volume datasets acquired by the Supria can be post processed by the system to provide additional information. Post processing capabilities included in the Supria software include CT angiography (CTA), Multi-planar reconstruction (MPR) and volume rendering. Volume datasets acquired by the Supria can be transferred to external devices via a DICOM standard interface. The device output can provide an aid to diagnosis when used by a qualified physician.
Device Story
Supria is a 16-slice multi-slice CT system; uses rotating gantry with slip ring technology, X-ray tube, and solid-state detector array to collect data. Operates in axial, helical, or dynamic modes. High-speed reconstruction sub-system processes raw data into cross-sectional images. Operated by qualified physicians/technicians in clinical settings. Workstation (PC-based, Windows OS) displays, stores, and archives images. Includes post-processing tools: CT angiography (CTA), Multi-planar reconstruction (MPR), and volume rendering. Features Intelli IP Advanced (iterative reconstruction) and IntelliEC (automatic exposure control) for image quality optimization. DICOM interface enables transfer to external devices. Aids diagnosis by providing cross-sectional anatomical visualization.
Clinical Evidence
No formal clinical trial; clinical usability validated via six clinical image examples covering general anatomy. Radiologist review confirmed acceptable image quality using Intelli IP Advanced and IntelliEC optimization technologies. Bench testing performed per IEC 61223-3-5 confirmed equivalence in dose profile, noise, CT number, spatial resolution, slice thickness, and CT dose index.
Technological Characteristics
16-slice CT system; rotate-rotate geometry with slip ring; solid-state detectors. X-ray tube (5 MHU heat capacity, oil/air cooled). High-frequency generator (48 kW). PC-based workstation (Windows). Connectivity: DICOM. Standards: IEC 60601-1, IEC 60601-1-2, IEC 60601-1-3, IEC 60601-2-44, NEMA XR 25, NEMA XR 26. Iterative reconstruction (Intelli IP Advanced) and AEC (IntelliEC).
Indications for Use
Indicated for head, whole body, and vascular X-ray CT applications in patients of all ages. Used for axial, helical, or dynamic imaging. Contraindications: Not for cardiac imaging requiring ECG.
Regulatory Classification
Identification
A computed tomography x-ray system is a diagnostic x-ray system intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data from the same axial plane taken at different angles. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Predicate Devices
SCENARIA Phase 2 Whole-body X-ray CT System (K123509)
Submission Summary (Full Text)
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Image /page/0/Picture/1 description: The image is a black and white logo for the Department of Health & Human Services - USA. The logo consists of a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the circumference. Inside the circle is a stylized image of three human profiles facing to the right, with a flowing, ribbon-like element extending from the bottom profile.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
September 30, 2015
Hitachi Medical Systems America, Inc. % Mr. Doug Thistlethwaite Manager of Regulatory Affairs 1959 Summit Commerce Park TWINSBURG OH 44087
Re: K150565
Trade/Device Name: Supria Whole-body X-ray CT System Regulation Number: 21 CFR 892.1750 Regulation Name: Computed tomography x-ray system Regulatory Class: II Product Code: JAK Dated: August 26, 2015 Received: August 27, 2015
Dear Mr. Thistlethwaite:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug. and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21. Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours.
**Robert Oels**
Robert Ochs. Ph.D. Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
### Indications for Use
510(k) Number (if known)
## K150565
Device Name
HITACHI Supria Whole-body X-ray CT System
Indications for Use (Describe)
The Supria system is indicated for head, whole body, cardiac and vascular X-ray Computed Tomography applications in patients of all ages. The images can be acquired in either axial, helical, gated or dynamic modes.
The volume datasets acquired by the Supria can be post processed by the system to provide additional information and can be transferred to external devices via a DICOM standard interface.
Post processing capabilities included in the Supria software include CT angiography (CTA), Multi-planar reconstruction (MPR) and volume rendering.
The device output can provide an aid to diagnosis when used by a qualified physician.
Type of Use (Select one or both, as applicable)
> Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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Section 5
510(k) Summary
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| Submitter: | Hitachi Medical Systems America, Inc.<br>1959 Summit Commerce Park<br>Twinsburg, Ohio 44087-2371 |
|-------------------|--------------------------------------------------------------------------------------------------|
| Contact: | Douglas J. Thistlethwaite |
| Telephone number: | 330-425-1313 |
| Telephone number: | 330-963-0749 |
| E-mail: | thistlethwaited@hitachimed.com |
| Date: | February 12, 2015 |
## Submitter Information
## Device Name
| Regulation Number: | 21 CFR 892.1750 |
|-------------------------|-------------------------------------------------------|
| Regulation Name: | Computed tomography x-ray system |
| Product Code | JAK, System, X-Ray, Tomography, Computed |
| Class | II |
| Panel | Radiology |
| Trade/Proprietary Name: | Supria Whole-body X-ray CT System |
| Predicate Device(s): | SCENARIA Phase 2 Whole-body X-ray CT System (K123509) |
# Device Intended Use
The Supria system is indicated for head, whole body, and vascular X-ray Computed Tomography applications in patients of all ages. The images can be acquired in either axial, helical, or dynamic modes.
The volume datasets acquired by the Supria can be post processed by the system to provide additional information. Post processing capabilities included in the Supria software include CT angiography (CTA), Multi-planar reconstruction (MPR) and volume rendering.
Volume datasets acquired by the Supria can be transferred to external devices via a DICOM standard interface.
The device output can provide an aid to diagnosis when used by a qualified physician.
## Device Description
### Function
The Supria is a multi-slice computed tomography system designed to perform multi-slice CT scanning supported by 16-detector technology. The system allows optimum clinical applications ranging from routine exams in response to the diversified circumstances in imaging whole body regions.
## Scientific Concepts
The Supria system uses 16-slice CT technology, where the X-ray tube and detector assemblies are mounted on a frame that rotates continuously around the patient using slip ring technology. The solid-state detector assembly design collects up to 16 slices of data simultaneously. The Xray sub-system features a high frequency generator, X-ray tube, and collimation system that produces a fan beam X-ray output. The system can operate in a helical (spiral) scan mode where the patient table moves during scanning. As the X-ray tube/detector assembly rotates around the patient, data is collected at multiple angles.
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The collected data is then reconstructed into cross-sectional images by a high-speed reconstruction sub-system. The images are displayed on a Computer Workstation, stored, printed, and archived as required. The workstation is based on current PC technology using the Windows™ operating system.
### Physical and Performance Characteristics
The Supria system consists of a Gantry, Operator's Workstation, Patient Table, High-Frequency X-ray Generator, and accessories. The system performance is similar to the predicate device.
#### Performance Comparison
A clinical evaluation comparison was conducted with the Supria system and the SCENARIA Phase 2 System (K123509) and found to be substantially equivalent.
In addition, evaluations were conducted for dose profile, image noise, Modulation Transfer Function (MTF), slice thickness and sensitivity profile, slice plane location, and CT dose index and also found to be substantially equivalent.
A rationale analysis was then conducted and the results are contained in Table 1.
| Testing Type | Rationale Analysis |
|--------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Performance Testing - Clinical | We provide six clinical image examples which we judged to be sufficient to judge a clinical usability. The six covered the<br>general anatomy outlined in the indications for use and are comparable to the anatomy examples provided for the Predicate<br>with the exception of cardiac images due to the fact that the Supria does not support imaging with ECG.<br><br>In addition, a radiologist validated that clinical images which applied image quality optimization technology (Intelli IP Advanced<br>and IntelliEC) have acceptable image quality for clinical use. |
| Performance Testing - Bench | We generated bench data based on IEC61223-3-5.<br><br>We confirmed that the items (Dose Profile, Noise, Mean CT number and Uniformity, Sparial Resolution, Tomographic Section<br>Thickness and Sensitivity Profile, Tomographic Plane Location, CT dose index) which we tested met the conditions of 21 CFR<br>1020.33(c) or (g).<br><br>This shows that Supria has equivalent basic performance as the predicate device, SCENARIA Phase2. |
Table 1 Performance Comparison Analysis
The analysis confirms the performance characteristics of the Supria are comparable to the predicate device and support our conclusion that the Supria system is substantially equivalent.
# Device Technological Characteristics
The technological characteristics of the Supria and the predicate device are listed in Table 2.
| ITEM | HITACHI Supria 16 Slice | HITACHI SCENARIA PHASE 2<br>(K123509) | Difference Analysis |
|--------------------------------------------------------------|---------------------------------------------------------|-------------------------------------------------------------|---------------------|
| Gantry | | | |
| Geometry | Rotate-rotate with offset detector<br>system, slip ring | Rotate-rotate with offset detector<br>system, slip ring | No |
| Scan Time | 0.75, 1.0, 1.5, 2.0 [s] | 0.35, 0.4, 0.5, 0.75, 1.0, 2.0 [s] | Table 2: 01 |
| X-ray Fan Beam Angle | 51 [deg] | 51 [deg] | No |
| Gantry Tilt | -30 to +30 [deg] | -30 to +30 [deg] | No |
| Gantry Aperture | 750 [mm] | 750 [mm] | No |
| Gantry Dimensions | 1990 x 920 x 1842.5 [mm] | 2350 x 880 x 2030 [mm] | Table 2: 02 |
| Gantry Weight | 1600 [kg] | 2235 [kg] | Table 2: 02 |
| Scan Localizer | Laser | Laser | No |
| Detector | | | |
| Type | Solid state | Solid state | No |
| Number of Channels | 880 [ch] (8ch reference) | 888 [ch] (8ch reference) | Table 2: 03 |
| Number of Rows | 16 | 64 | Table 2: 03 |
| Number of Slices | 16 [slice/scan] (Axial) | 64, 128 [slice/scan] (Axial) | Table 2: 03 |
| X-ray Tube | | | |
| Anode Heat Storage | 5 [MHU] | 7.5 [MHU] | Table 2: 04 |
| Dissipation Rate | 748 [kHU/min] | 1,386 [kHU/min] | Table 2: 04 |
| ITEM | HITACHI Supria 16 Slice | HITACHI SCENARIA PHASE 2<br>(K123509) | Difference Analysis |
| Tube cooling | Oil/air | Cooling Fluid/air | Table 2: 04 |
| Tube focal spot | Dual 0.7 x 0.8, 1.2 x 1.4 [mm] | Dual 0.7 x 0.8, 1.2 x 1.4 [mm] | No |
| X-ray Generator | | | |
| kW Output | System Maximum 48[kW] /<br>Generator Maximum 51 [kW] | 72 [kW] | Table 2: 05 |
| Max. Power Input | 75 [kVA] | 100 [kVA] | Table 2: 05 |
| kVp Range | 80, 100, 120, 140 [kVp] | 80, 100, 120, 140 [kVp] | No |
| mA Range | 10 to 400 [mA] @120kV, 48kW | 10 to 600 [mA] @120kV, 72kW | Table 2: 05 |
| Patient Table | | | |
| Range of Movement,<br>Vertical | 450 to 1000 [mm] (CT-WT-21) | 465 to 1050 [mm] (CT-WT-19)<br>450 to 1050 [mm] (CT-WT-18L) | Table 2: 06 |
| Range of Movement,<br>Longitudinal | 1910 [mm] (CT-WT-21) | 2110 [mm] | Table 2: 06 |
| Range of Movement,<br>Lateral | N/A | -80 to +80 [mm] (CT-WT-19) | Table 2: 06 |
| Scannable Range | 155 cm | 175 cm | Table 2: 06 |
| Maximum Load Capacity | 227 [kg] | 230 [kg] | Table 2: 06 |
| Display | | | |
| Monitor Type | 24" LCD | 24" LCD | No |
| Matrices, Pixels | 1920 x 1200 | 1920 x 1200 | No |
| Image Enlargements | Up to 9.99x | Up to 9.99x | No |
| Max. Slices Displayed at Once | 25 | 25 | No |
| Image Storage | | | |
| Hard Disk | 110 [GB] (images),<br>200 [GB] (raw data) | 250 [GB] (images),<br>750 [GB] (raw data) | Table 2: 07 |
| Storage Images | 200,000 | 200,000 | No |
| Archival Storage (Media) | DVD-R/RW, CD-R/RW | DVD-RAM, DVD-R/RW,<br>CD-R/RW | Table 2: 07 |
| Scanning, Reconstruction | | | |
| Localization Scan | Real time | Real time | No |
| Localization Scan Length | 150, 250, 350, 500, 750,<br>1000, 1250, 1500, 1750 [mm] | 150, 250, 350, 500, 750,<br>1000, 1250, 1500, 1750 [mm] | No |
| Max. Scan Time | 100 [s] | 100 [s] | No |
| Helical Beam Pitch | 0.56, 0.81, 1.06, 1.31, 1.56 | 0.58, 0.83, 1.08, 1.33, 1.58<br>@40mm Collimation | Table 2: 08 |
| Collimation | 1.25, 5, 10, 15, 20 [mm] | 1.25, 5, 10, 15, 20, 40 [mm] | Table 2: 08 |
| Reconstruction Matrix | 512 x 512 [pix] | 512 x 512 [pix] | No |
| Reconstruction FOVs | 20 to 500 [mm] | 20 to 500 [mm] | No |
| Slice Thickness | 0.625, 1.0, 1.25, 2.5, 3.75,<br>5.0, 7.5, 10.0 [mm] | 0.625, 1.0, 1.25, 2.5, 3.75,<br>5.0, 7.5, 10.0 [mm] | No |
| Range of CT numbers | -2000 to +4000 (13bit)<br>-32768 to +32767 (16bit) | -2000 to +4000 (13bit)<br>-32768 to +32767 (16bit) | No |
| Reconstruction Time | 0.1 seconds per image or less | 0.056 seconds per image or less | Table 2: 09 |
| Performance | | | |
| High-contrast spatial resolution | 0.35 [mm] | 0.35 [mm] | No |
| Low-contrast resolution mm at % at ≤4<br>rads | 2.5 [mm] @ 0.25% | 2.5 [mm] @ 0.25% | No |
| 10% MTF | 14.7 [lp/cm] | 14.7 [lp/cm] | No |
| 50% MTF | 12.2 [lp/cm] | 12.2 [lp/cm] | No |
| Dose Controls | | | |
| Bow Tie Filter | Yes. Normal | Yes. Small / Normal | Table 2: 10 |
| Automatic Exposure Control | Yes. IntelliEC | Yes. IntelliEC | No |
| Longitudinal Modulation | Yes | Yes | No |
| Angular Modulation | Yes | Yes | No |
| Iterative Reconstruction | Yes. Intelli IP Advanced Mode | Yes. Intelli IP Advanced Mode | No |
| ITEM | HITACHI Supria 16 Slice | HITACHI SCENARIA PHASE 2 (K123509) | Difference Analysis |
| Maximum possible pitch with full image quality | 1.56 | 1.58 | Table 2: 11 |
| Dose Displays | | | |
| CTDIv | Yes | Yes | No |
| DLP | Yes | Yes | No |
| Features | | | |
| Axial Scan | Yes | Yes | No |
| Helical Scan | Yes | Yes | No |
| Dynamic Scan | Yes | Yes | No |
| Predict Scan | Yes | Yes | No |
| ECG Retrospective Scan<br>(Helical) | No | Yes | Table 2: 12 |
| ECG Prospective Scan<br>(Axial) | No | Yes | Table 2: 12 |
| guideShot Scan | No | Yes | Table 2: 13 |
| Automatic Exposure Control | Yes. | Yes. IntelliEC | No |
| Automatic Exposure Control using Iterative<br>Reconstruction | No. | No. | No |
| ECG Dose Modulation | No | No. | No |
| Adaptive Filter | No | Yes. Intelli IP Normal | Table 2: 14 |
| Iterative Reconstruction | Yes. Intelli IP Advanced | Yes. Intelli IP Advanced | No |
| Injector Synchronization | Yes | Yes | No |
| Dose Check | Yes | Yes | No |
| Access Control | Yes | No | Table 2: 15 |
| Automatic Cardiac Phase Search | No | Yes. CardioHarmony | Table 2: 12 |
| Preview Scan | No | No | No |
| Double Slice at Axial Scan | No | Yes. Fine Recon | Table 2: 16 |
| Priority Recon. | No | No | No |
| Dose Report | Yes. Simple Dose Report | Yes. Simple Dose Report | No |
| DICOM | Yes | Yes | No |
| ID Reader | Yes | No | Table 2: 17 |
| Exam Split | Yes | No | Table 2: 18 |
| Multi-Planar Reconstruction (MPR) | Yes | Yes | No |
| Volume Rendering | Yes | Yes | No |
| CT Angiography (CTA) | Yes | Yes | No |
| Segmentation | Yes | Yes | No |
| Retouch | Yes | Yes | No |
| Quality Exam | Yes | No | Table 2: 19 |
Table 2 Technological Characteristic Differences
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## The differences from the predicate device to Supria are explained in Table 3.
Table 3 Analysis of Differences
| Gantry | |
|--------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 01 | Because the specifications of the device are different, the minimum scan time of this device is not as short as the Predicate. This<br>change does not affect overall technological characteristics compared to the Predicate. |
| 02 | Because the specifications of the device are different, the size and the weight of the Gantry of this device are different from the<br>Predicate.<br>However, as the device weighs less and has a smaller footprint than the Predicate, we judge that these changes do not impact the<br>intended use. |
| Detector | |
| 03 | Because the number of provided slices for one rotational scan is different per equipment specifications, there are fewer number of<br>detectors and number of the channels than the Predicate. |
| X-ray Tube | |
| 04 | The X-ray tube of this device is different from Predicate only in heat capacity. The X-ray tube focal spot and general performance<br>characteristics are the same as the Predicate. |
| X-ray Generator | |
| 05 | The X-ray generator was selected to match the performance specifications of this device and conforms to IEC60601-2-44-2009<br>requirements for CT systems. The kVp and mA output of the device is comparable to the Predicate. |
| Patient Table | |
| 06 | The scannable range specification was defined assuming the number of the provided slices by one rotational scan is approximately<br>25% of Predicate, and the table travel and weight capacity specifications are generally equivalent to the Predicate. |
| Image Storage | |
| 07 | The data output volume of this device is approximately 25% of Predicate and the volume of the hard disk drive (HDD) was defined to<br>give an equivalent exam capacity as the Predicate.<br>In addition, we select commonly available external output media that is both easy to obtain and meets the device specification<br>requirements. |
| Scanning, Reconstruction | |
| 08 | The helical scan pitch specification is based on the table movement distance and collimation width, but is nearly identical to the<br>Predicate. |
| 09 | The data processing load of this device is approximately 25% of Predicate and the computing capacity was defined to achieve an<br>equivalent performance specification compared to the Predicate. |
| Dose Controls | |
| 10 | While this device is not equipped with a small Bow-Tie Filter, the normal Bow-Tie Filter provides generally equivalent performance to<br>the Predicate and does not substantially impact the effectivity and safety of this device. |
| 11 | As noted above, the pitch specification is only marginally different and therefore does not substantially alter the device performance<br>as compared to the Predicate. |
| Features | |
| 12 | This device is a general purpose CT system that is not equipped with an ECG function. The lack of ECG does not<br>substantially affect the intended use of the device and does not impact the effectivity and safety of this device as<br>compared to the Predicate. |
| 13 | This device is a general purpose CT system that is not equipped with the guideShot option for in-room image viewing.<br>The lack of guideShot does not affect the intended use of the device and does not impact the effectivity and safety of<br>this device as compared to the Predicate. |
| 14 | This device is not equipped with an Adaptive Filter function, but has an Iterative Reconstruction feature which provides<br>an equivalent image processing function. |
| 15 | This function is intended to confirm device performance according to IEC 62351-8 and NEMA XR-26. |
| 16 | This device is not equipped with a Fine Recon function which does not impact the effectivity and safety of this device. |
| 17 | This function supports the input of patient information by a bar code reader. |
| 18 | This function is for dividing one examination into multiple examinations (with unique Accession numbers) as an<br>operator convenience. |
| 19 | This function is intended to confirm device performance according to IEC 61223-3-5/IEC 61223-2-6. |
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Therefore, based on a thorough analysis and comparison of the Supria and the predicate device, the technological characteristics do not impact safety and effectiveness.
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# Substantial Equivalence
A summary decision was based on analysis of Table 4.
Table 4 Rationale Analysis: Supria vs. Predicate
| ITEM | Overall Rationale Analysis |
|-----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Gantry<br>Detector | Different specifications do not constitute a new intended use. There are no significant changes in technological<br>characteristics. The gantry and detector design was based on the same technology as the Predicate. These sub-systems<br>have the same level of general effectiveness as the Predicate based on the performance test results shown in Section 10.<br>For safety, these items are controlled and tested according to same regulations and/or standards as the Predicate. |
| X-ray Tube | |
| X-ray<br>Generator | This item conforms to IEC60601-2-44-2009 requirements for CT systems and has the same level of general effectiveness<br>as the Predicate based on the performance test results shown in Section 10. For safety, this item is controlled and tested<br>according to same regulations and/or standards as the Predicate. |
| Patient Table | Different specifications do not constitute a new intended use. There are no significant changes in technological<br>characteristics. The table travel and weight capacity characteristics are generally equivalent to the Predicate. For safety,<br>this item is controlled and tested according to same regulations and/or standards as the Predicate. |
| Display | There are no functional differences in this item. |
| Image Storage | Different specifications do not constitute a new intended use. There are no significant changes in technological |
| Scanning,<br>Reconstruction | characteristics. The design criteria for these elements were set to allow comparable performance to the Predicate. The<br>performance of these sub-systems does not substantially affect the effectivity and safety as compared to the Predicate and<br>were verified by design V&V. |
| Performance | There are no substantial differences in this category based on the performance test results shown in Section 10. |
| Dose Controls | Different specifications do not constitute a new intended use. There are no significant changes in technological<br>characteristics. For safety, these items are controlled and tested according to same regulations and/or standards as the<br>Predicate. |
| Dose Displays | There are no functional differences in this item. |
| Features | Different specifications do not constitute a new intended use. There are no significant changes in technological<br>characteristics and the feature set of the device is generally equivalent to the Predicate. |
Therefore, based on a thorough analysis and comparison of the functions, scientific concepts, physical and performance characteristics, performance comparison and technological characteristics, the proposed Supria Whole-body X-ray CT System is considered substantially equivalent to the currently marketed predicate device (SCENARIA Phase 2 Whole-body X-ray CT System K123509) in terms of design features, fundamental scientific technology, indications for use, and safety and effectiveness.
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# Summary of Non-Clinical Testing
The Supria system is in conformance with the applicable parts of the following standards:
- AAMI ANSI ES60601-1:2005/(R) 2012 and A1:2012, C1:2009/(R)2012 and ● A2:2010/(R)2012
Medical electrical equipment - Part 1: General requirements for basic safety and essential performance (IEC 60601-1:2005, MOD)
- IEC 60601-1-2 Edition 3: 2007 . Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility - Requirements and tests
- . IEC 60601-1-3 Edition 2.0 2008-01
Medical electrical equipment - Part 1-3: General requirements for basic safety and essential performance - Collateral Standard: Radiation protection in diagnostic X-ray equipment
- o IEC 60601-2-44 Edition 3.0 2009-02 Medical electrical equipment Part 2-44: particular requirements for the basic safety and essential performance of x-ray equipment for computed tomography.
- NEMA XR 25 Computed Tomography Dose Check
- . NEMA XR26
Access Controls for Computer Tomography: Identification, Interlocks, and Logs
- IEC 62304 First edition 2006-05, Medical device software Software life cycle processes 0
In addition, the device complies with all applicable requirements for Dose Profile, Noise, Mean CT number and Uniformity, Spatial Resolution, Tomographic Section Thickness and Sensitivity Profile, Tomographic Plane Location, and CT dose index.
# Summary of Clinical Testing
Clinical images were collected and analyzed, to ensure that images constructed by the Supria Whole-body X-ray CT System meet user needs.
As a result of the analysis:
| Testing Type | Rationale Analysis |
|--------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Performance Testing - Clinical | We provide six clinical image examples which we judged to be sufficient to judge a clinical usability. The six covered the<br>general anatomy outlined in the indications for use and are comparable to the anatomy examples provided for the Predicate<br>with the exception of cardiac images due to the fact that the Supria does not support imaging with ECG.<br>In addition, a radiologist validated that clinical images which applied image quality optimization technology (Intelli IP Advanced<br>and IntelliEC) have acceptable image quality for clinical use. |
# Conclusions
Hitachi believes that, based on the information included in the submission, Supria Whole-body X-ray CT System is substantially equivalent with respect to hardware, base elements of the software, safety, effectiveness, and functionality to the SCENARIA Phase 2 Whole-body X-ray CT System (K123509).
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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.