K141199 · Brainlab AG · LLZ · Jun 20, 2014 · Radiology
Device Facts
Record ID
K141199
Device Name
QUENTRY DOSE REVIEW
Applicant
Brainlab AG
Product Code
LLZ · Radiology
Decision Date
Jun 20, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.2050
Device Class
Class 2
Attributes
Software as a Medical Device
Indications for Use
Quentry Dose Review is a web based software for medical professionals that provides doctors, physicists and physicians with tools for secure online image (DICOM and DICOM RT) review including measurement and RT specific functions, such as display of dose distribution information, isodose lines, and dose volume histograms (DVH). It is not intended for the review of mammographic images, detailed treatment planning, plan approval or treatment of patients. It is also not intended to be used on mobile systems. For radiotherapy treatment plan approval, it is required to use the hospital specific workflows, tools and record&verify systems.
Device Story
Quentry Dose Review is a web-based software application embedded in the Quentry portal for secure online review of DICOM and DICOM RT images. Input data includes medical images and RT plans retrieved from a cloud database. The device transforms these inputs into visual outputs, including dose distribution maps, isodose lines, and dose volume histograms (DVH). It provides tools for image adjustment (pan, zoom, windowing), reconstruction, distance/point measurements, and cine loop playback. Used by physicians, radiologists, and radio oncologists in clinics, offices, or home environments via standard web browsers. The healthcare provider uses the output to visualize and compare RT plans or share data for second opinions. It does not perform treatment planning or plan approval; it serves as a collaborative review tool to assist clinical decision-making by providing visual and quantitative data for patient treatment assessment.
Clinical Evidence
No clinical data. Verification and validation were performed via bench testing and usability studies. Testing confirmed that design specifications were met and the user interface is effective for the intended workflows. Validation was conducted using software equivalent to the final release version.
Technological Characteristics
Web-based software application; requires Microsoft Silverlight plugin. Operates on standard PCs (Windows XP+, Mac OS X 10+) via web browsers (IE 8+, Firefox 3.x+, Chrome 10+, Safari 5+). Connectivity via internet (min 2 Mbit/sec). Supports DICOM and DICOM RT formats. Features include image reconstruction, measurement tools, and dose distribution visualization.
Indications for Use
Indicated for medical professionals (doctors, physicists, physicians) to review DICOM and DICOM RT images, including dose distribution, isodose lines, and DVH. Not for mammography, treatment planning, plan approval, or patient treatment. Not for use on mobile systems.
Regulatory Classification
Identification
A medical image management and processing system is a device that provides one or more capabilities relating to the review and digital processing of medical images for the purposes of interpretation by a trained practitioner of disease detection, diagnosis, or patient management. The software components may provide advanced or complex image processing functions for image manipulation, enhancement, or quantification that are intended for use in the interpretation and analysis of medical images. Advanced image manipulation functions may include image segmentation, multimodality image registration, or 3D visualization. Complex quantitative functions may include semi-automated measurements or time-series measurements.
Special Controls
*Classification.* Class II (special controls; voluntary standards—Digital Imaging and Communications in Medicine (DICOM) Std., Joint Photographic Experts Group (JPEG) Std., Society of Motion Picture and Television Engineers (SMPTE) Test Pattern).
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# JUN 2 0 2014
.
# 510 (K) SUMMARY QUENTRY DOSE REVIEW
・
IN ACCORDANCE WITH REQUIREMENTS OF 21 CFR PART 807.92
| Manufacturer: | Brainlab AG<br>Kapellenstrasse 12<br>85622 Feldkirchen<br>Germany |
|--------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Phone: +49 89 99 15 68 0<br>Fax: +49 89 99 15 68 33 |
| Submitter: | Rainer Birkenbach |
| Contact person: | Alexander Schwiersch |
| Summary date: | 4/30/2014 |
| Device: | QUENTRY DOSE REVIEW |
| Trade name: | QUENTRY DOSE REVIEW |
| Common/Classification<br>Name: | Picture archiving and communications system<br>System,Planning,Radiation Therapy Treatment |
| Main Predicate Device: | Advanced Viewer (K132763) |
| Secondary Predicate<br>Device: | iPlan RT (K103246) |
| Device classification<br>name: | system, image processing, radiological |
| Regulatory Class: | Class II |
| Regulation Number: | 892.2050, 892.5050 |
| Product Code: | LLZ, MUJ |
| Intended use: | Quentry Dose Review is a web based software for medical professionals that<br>provides doctors, physicists and physicians with tools for secure online image<br>(DICOM and DICOM RT) review including measurement and RT specific<br>functions, such as display of dose distribution information, isodose lines, and<br>dose volume histograms (DVH).<br><br>It is not intended for the review of mammographic images, detailed treatment<br>planning, plan approval or treatment of patients. It is also not intended to be<br>used on mobile systems.<br><br>For radiotherapy treatment plan approval, it is required to use the hospital<br>specific workflows, tools and record&verify systems. |
| Device description: | Quentry Dose Review is part of the online collaboration platform Quentry to<br>share, discuss and transfer medical image data. The viewer provides<br>capabilities to visualize medical images (DICOM and DICOM RT) and dose<br>information. |
REVISION 1
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Quentry is a software platform consisting of a set of server-based components providing functions for transfer and storage of medical data, as well as user access via a web-based portal for data management, sharing, and download. The platform is integrated with desktop and server-based applications for upload and download of medical data from workstations and network-based image archive servers. The platform also provides interfaces for integration of third-party systems and applications. Quentry platform is an FDA class I product.
The device is generally used by medical professionals such as doctors, their assistants or nursing staff, within a clinic or at a doctor's office, or even at home.
Quentry Dose Review is a pure web application that is embedded in the Quentry web portal which is accessible from any computer with an appropriate internet connection.
#### Operator Profile
The intended users are Physicians, Radiologists, Radio oncologists or their assistants. Typical use cases of the embedded viewer together with the functionality of the web portal are:
- Physicians asking/providing colleagues for/with 2nd opinion .
- Radiologists comparing two RT plans for better patient treatment results
- . Physicians refer patients to other hospitals and send pictures and/or RT plans upfront
- Expert service: Several hospitals share one radiology department
#### Patient Population
There are no demographic, regional or cultural limitations for patients. It is up to the user to decide if the system shall be used to assist a certain procedure.
#### Conditions of use
The system can be used in a hospital environment, in a doctor's office, at home or any place with internet access.
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### Device Features:
Quentry Dose Review provides the following functions
| Feature | Detail |
|---------------------------------------------------------|----------------------------------------------------------------------------------------------------------|
| Load and import DICOM images | Load DICOM images from cloud database |
| View DICOM images | Viewer converts DICOM images to PNG format for viewing |
| Adjustment (pan, zoom, window, color scheme adjustment) | Review patient data with various adjustment |
| Reconstruction | Review patient data from different orientation |
| Measurement - distance | Viewer provides distance measurement between two arbitrary points |
| Measurement - point | Viewer provides gray level and dose value measurement for an arbitrary point |
| Voxel object | Review imported DICOM objects |
| Fused images | Review aligned patient data, e.g. CT, PT and so on |
| Cine loop playing | Display multiframe DICOM images |
| RT plan | Load RT plan<br>RT plan information<br>RT plan comparison<br>DVH comparison |
| Review dose distribution | Dose distribution view<br>Dose analysis view<br>DVH (PTVs & OARs)<br>Manual input of normalization value |
## Substantial equivalence:
Both Quentry Dose Review and Advanced Viewer are cloud-based software for viewing and manipulating DICOM images. Both of the proposed and predicate devices are to be used with any computer with appropriate internet connection. Equivalent with the predicate device, Quentry Dose Review is software installed in a web server that will communicate with the client via internet connection. Both devices utilize encrypted browser communication and provide image viewing and manipulation. However Quentry Dose Review enables DICOM RT images viewing functions, which Advanced Viewer does not provide.
iPlan RT is a radiation treatment planning system. This system generates treatment plans and simulates the dose delivery for external beam radiotherapy. One common function of iPlan RT and Quentry Dose Review is to review DICOM RT images. Quentry Dose Review and iPlan RT provide equivalent functions in viewing DICOM RT images. Equivalent to the predicate device, Quentry Dose Review is intended for medical professionals to review DICOM RT plans.
Conclusion:
Quentry Dose Review and Advanced Viewer have identical functionalities in DICOM viewing and identical technical characteristic. Quentry Dose Review is in addition capable of reviewing DICOM RT images. The RT functionalities are equivalent to these of iPlan RT.
FORM 04-195
REVISION 1
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Quentry Dose Review has similar functionality, intended use, technological characteristics, and typical users as the predicate devices. Hence Quentry Dose Review does not introduce any new issues concerning safety and effectiveness, and is substantially equivalent to the predicate devices.
#### Verification/validation Verification summary:
The verification of the system Quentry Dose Review has been carried out thoroughly both at the top level and on the underlying subsystems. The verification was done to demonstrate that the design specifications are met.
### Non-clinical validation
The validation contained usability tests which should ensure that workflows or user interface result in a useful interface.
All test reports were finally rated as successful according to their acceptance criteria. The non-clinical validation has been performed with software and units that are considered equivalent to the final version of the product, as warranted by 21 CFR 820.30 (g) and which have the UI as planned for the release.
The user tests were done in combination with the Quentry.com Portal which is developed and released by Voyant Health, a Brainlab company. The Quentry Dose Review workflow included also patient selection as interface between Quentry.com Portal and Quentry Dose Review.
Intended operational Environment
Standard computer with internet connection and mouse.
# Operating System
The following versions or higher:
- Windows XP .
- Mac OS X 10 .
### Browser
The following 32 bit versions or higher:
- Internet Explorer 8 ◆
- · · FireFox 3.x
- . Chrome 10
- . Safari 5
Microsoft® Silverlight® Plugin needed
#### Hardware
- 2GB RAM recommended .
- . Screen resolution: 1024x768 or higher
- . Mouse with scroll wheel recommended
Network
- Internet connection with at least 2 Mbit/sec. The internet connection must be stable. You may need to restart the viewer if the internet connection is unstable.
- Firewall with open outbound port 80/443 (http and https)
Known Exceptions
#### FORM 04-195
REVISION 1
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K141199
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### 64 bit browsers are not supported by Microsoft® Silverlight®
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form 04-195
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# REVISION 1
1. 1. 1. 1.
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Image /page/5/Picture/0 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three lines representing its wings, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" arranged in a circle around the eagle. The text is in all caps and appears to be a sans-serif font. The logo is black and white.
## DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Contral Center - WO66-Go(1) Silver Spring, MD 20993-0002
June 20, 2014
Brainlab AG % Mr. Alexander Schwiersch Regulatory Allairs Manager Kapellenstrasse 12 Feldkirchen 85622 GERMANY
Re: K141199 Trade/Device Name: Quentry Dose Review Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: May 12, 2014 Received: May 14, 2014
Dear Mr. Schwiersch:
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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Page 2-Mr. Schwiersch
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/ResourcesforYou/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,

for
Janine M. Morris Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known)
K141199
Device Name Quentry Dose Review
Indications for Use (Describe)
Quentry Dose Review is a web based software for medical professionals that provides doctors, physicians with tools for secure online image (DICOM RT) review including measurement and RT specific functions. such as display of dose distribution information, isodose lines, and dose volume histograms (DVH),
It is not intended for the review of mammographic images, detailed treatment planning, plan approval or treatment of patients. It is also not intended to be used on mobile systems.
For radiotherapy treatment plan approval, it is required to use the hospital specific workflows, tools and record&verify systems.
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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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.
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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.
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Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
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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.