K171013 · Ge Hangwei Medical Systems Co., Ltd. · JAK · Jun 5, 2017 · Radiology
Device Facts
Record ID
K171013
Device Name
Revolution ACT
Applicant
Ge Hangwei Medical Systems Co., Ltd.
Product Code
JAK · Radiology
Decision Date
Jun 5, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1750
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The GE Revolution ACT Computed Tomography X-ray system is intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data taken at different angles and planes, for patients of all ages, including Axial, Cine, Helical. These images may be obtained either with or without contrast. This device may include signal analysis and display equipment, patient, and equipment supports, components and accessories. This device may include data and image processing to produce images in a variety of trans-axial and reformatted planes. Further the images can be post processed to produce additional imaging planes or analysis results. The GE Revolution ACT CT Scanner System is indicated for head, whole body and vascular X-ray Computed Tomography applications. The device output is a valuable medical tool for the diagnosis of disease, trauma, or abnormality and for planning, guiding and monitoring therapy.
Device Story
Multi-slice CT scanner (16-slice or 8-slice configuration); inputs x-ray transmission data at various angles/planes; reconstructs cross-sectional images; includes SmartPlan for initial scan setup based on scout images; utilizes ASiR iterative reconstruction algorithm. Operated by clinicians in clinical settings. Output consists of trans-axial and reformatted images used for diagnosis of disease, trauma, or abnormality and for therapy planning/guidance. Benefits include increased patient access to multi-slice CT technology in facilities with limited space or power capacity.
Clinical Evidence
No formal clinical trial; bench testing only. Performance verified via engineering bench tests (CT number accuracy, uniformity, noise, MTF, NPS, slice thickness) and comparison to predicate. Sample clinical images reviewed by a board-certified radiologist to verify iterative reconstruction (ASiR) performance on the new hardware platform.
Technological Characteristics
16-slice (or 8-slice) CT system; 65 cm bore; 0.98s max rotation speed; HiLight scintillator detector; single focal spot X-ray tube. Complies with IEC 60601-1 Ed 3.1, IEC 60601-1-2, 60601-1-3, 60601-2-28, 60601-2-44, NEMA XR-25, XR-26, XR-28, and 21 CFR 1020.30/1020.33. Software includes SmartPlan and ASiR. Manufactured under ISO 13485.
Indications for Use
Indicated for head, whole body, and vascular CT applications in patients of all ages. Contraindicated for cardiac and gated acquisition applications.
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.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
GE Hangwei Medical Systems, Co., Ltd. % Wang Xing Regulatory Affairs Manager West Area of Building No.3, No.1 Yongchang North Road Beijing Economic and Technological Development Area 100176 Beijing CHINA
Re: K171013
Trade/Device Name: Revolution ACT Regulation Number: 21 CFR 892.1750 Regulation Name: Computed tomography x-ray system Regulatory Class: II Product Code: JAK Dated: April 5, 2017 Received: April 6, 2017
Dear Wang Xing:
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.
June 5, 2017
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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.
Michael D. O'Hara
For
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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GE Healthcare 510(k) Premarket Notification Submission for Revolution ACT
Section 4: Indications for Use Statement
Revolution ACT
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#### Indications for Use
510(k) Number (if known) K171013
Device Name Revolution ACT
#### Indications for Use (Describe)
The GE Revolution ACT Computed Tomography X-ray system is intended to produce cross- sectional images of the body by computer reconstruction of x-ray transmission data taken at different angles and planes, for patients of all ages, including Axial, Cine, Helical.
These images may be obtained either with or without contrast. This device may include signal analysis and display equipment, patient, and equipment supports, components and accessories.
This device may include data and image processing to produce images in a variety of trans-axial and reformatted planes. Further the images can be post processed to produce additional imaging planes or analysis results.
The GE Revolution ACT CT Scanner System is indicated for head, whole body and vascular X-ray Computed Tomography applications.
The device output is a valuable medical tool for the diagnosis of disease, trauma, or abnormality and for planning, guiding and monitoring therapy.
| Type of Use (Select one or both, as applicable) | |
|--------------------------------------------------------------------------------------|----------------------------------------------------------------------|
| <input checked="true" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D) | <input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C) |
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GE Healthcare 510(k) Premarket Notification Submission for Revolution ACT
Section 5: 510(k) Summary
Revolution ACT
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## 510(k) Summary
This 510(k) summary of Safety and Effectiveness information is submitted in accordance with the requirement of 21 CFR Part 807.87(h).
In accordance with 21 CFR 807.92 the following summary of information is provided:
| Date: | March 31, 2017 |
|----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter: | GE Hangwei Medical System Co.,Ltd<br>West Area of Building No.3, No.1 Yongchang North<br>Road, Beijing Economic and Technological<br>Development Area, BEIJING 100176 CHINA |
| Primary Contact Person: | Wang Xing<br>Regulatory Affairs Manager<br>GE Healthcare<br>Phone Number: (86)-10-57388271<br>e-mail: xing1.wang@ge.com |
| Secondary Contact Persons: | John Jaeckle<br>Chief Regulatory Affairs Strategist<br>GE Healthcare<br>Phone Number: 262-424-9547<br>e-mail: John.Jaeckle.com |
| | Tracey Fox<br>Regulatory Affairs Director<br>GE Healthcare<br>Phone Number: 262-337-2586<br>e-mail: tracey.fox@ge.com |
| Product Identification | Revolution ACT |
| Device Trade Name: | Revolution ACT / Revolution ACTs |
| Common/Usual Name: | Computed Tomography X-ray System |
| Classification Names: | Computed Tomography X-ray System, 21 CFR 892.1750<br>(Class II) |
| Product Code: | 90-JAK |
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510(k) Premarket Notification Submission for Revolution ACT
| Manufacturer | GE Hangwei Medical System Co.,Ltd<br>West Area of Building No.3, No.1 Yongchang North<br>Road, Beijing Economic and Technological<br>Development Area, BEIJING 100176 CHINA |
|---------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturing location(s) | GE Hangwei Medical System Co.,Ltd<br>West Area of Building No.3, No.1 Yongchang North<br>Road, Beijing Economic and Technological<br>Development Area, BEIJING 100176 CHINA |
#### Predicate Device:
Optima CT520 - K123596
#### Marketed Devices:
The Revolution ACT is a CT device built upon the existing technologies of the predicate device, GE Healthcare' s currently marketed Computed Tomography X-ray System Optima CT520 (K123596). It is of comparable type and substantially equivalent to Optima CT520. In addition, the system has the same intended use and indication for use as that of the predicate device except the cardiac and gated acquisition indications are removed. The system is labeled as the Revolution ACT.
### Device Description:
The multi-slice GE Revolution ACT CT scanner is currently commercially available and in clinical use in various other countries including the EU, Japan, China, and India.
It is a general purpose, 16-slice (detector row) CT scanning system with a z-coverage of 20 mm and a maximum gantry rotation speed of 0.98 seconds. Revolution ACT is designed to help enable greater patient access to CT imaging in facilities that otherwise might not be able to obtain multi-slice CT technology with both current standard and advanced CT features and function.
Revolution ACT uses the same technology, operating principles, features, and functions as the GE Optima CT520 predicate device (K123596) and other cleared GE CT scanners. The system consists of the gantry, patient table, operator console, power distribution unit (PDU), associated accessories, and software options. The Revolution ACT is also available in an 8-detector row (10 mm z-coveragre configuration (Revolution ACTs) using the identical (but depopulated) detector/DAS. The changes from the predicate device do not affect the intended use or patient population.
Becaues the Revolution ACT does not support cardiac or other gated acquisitions, and has a slower rotation time thatn the predicate device, its indications for use were modified by removing cardiac and gated acquisitions and cardiac applications.
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510(k) Premarket Notification Submission for Revolution ACT
Revolution ACT complies with the current IEC 60601-1 Edition 3.1 series of standards (IEC 60601-1-2, 60601-1-3, 60601-2-28, and 60601-2-44), NEMA XR-25, XR-26, and XR-28, and 21 CFR 1020.30 and 1020.33. The materials are the same as those used on other cleared GE CT systems. It has been developed under the GE quality system and has successfully completed design controls activities, including risk management, verification, and validation.
The Revolution ACT is a head and whole body CT system. The device has the same intended use as predicate device Optima CT520 except cardiac and gated acquisition indications are removed. There are no new intended uses for Revolution ACT beyond those of the predicate.
#### Intended Use:
The GE Revolution ACT CT Scanner System is indicated for head, whole body and vascular X-Ray Computed Tomography applications
### Indications for Use:
The GE Revolution ACT Computed Tomography X-ray system is intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data taken at different angles and planes, for patients of all ages, including Axial, Cine, Helical.
These images may be obtained either with or without contrast. This device may include signal analysis and display equipment, patient, and equipment supports, components and accessories.
This device may include data and image processing to produce images in a variety of trans-axial and reformatted planes. Further the images can be post processed to produce additional imaging planes or analysis results.
The GE Revolution ACT CT Scanner System is indicated for head, whole body and vascular X-rav Computed Tomography applications
The device output is a valuable medical tool for the diagnosis of disease, trauma, or abnormality and for planning, quiding and monitoring therapy.
### Technology:
The Revolution ACT has a redesigned gantry and new image components. The gantry has a maximum rotation speed of 0.98 seconds, a 65 cm bore, no physical tilt, and a smaller footprint and lower power needs for easier sitina. It incorporates a lower power, single focal spot X-ray tube that is used on other GE systems, and has a redesigned detector that supports a smaller (43 cm) field of view. The detector continues to use GE's
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510(k) Premarket Notification Submission for Revolution ACT
HiLight scintillator. Revolution ACT maintains virtually the same image quality specifications and dose performance as its predicate.
Most the software features and functions are common between the Revolution ACT and its predicate, the others, except for SmartPlan, are available on other cleared GE CT scanners. SmartPlan is designed for workflow enhancement by providing the operator with initial scan set up paraments, such as scan Start and End location, derived from the scout images.
The changes described above do not change the fundamental control mechanism, operating principle, eneray type, and do not change the intended use from the currently commercially available predicate device Optima CT520.
### Risk Analysis:
Potential electrical, mechanical, and radiation hazards are identified in risk management including hazard analysis and controlled by:
- System verification and validation to ensure performance to specifications, -Federal Requlations, and user requirements.
- Adherence and certification to industry and international standards. (UL/CSA and -IEC60601-1 Ed.3.1 and associated collateral and particular standards for CT).
- Compliance to applicable CDRH 21CFR subchapter J requirements. -
- Compliance to NEMA XR-25, XR-26, and XR28. -
The device is designed and manufactured under the Quality System Regulations of 21 CFR 820 and ISO 13485.
## Determination of Substantial Equivalence:
The Revolution ACT has completed testing and in compliance with AAMI/ANSI ES 60601-1 and IEC60601-1 Ed. 3.1 and its associated collateral and particular standards, 21CFR Subchapter J, and NEMA standards XR25, XR26, and XR28. The device has successfully completed all testing per our quality system as well as addition engineering bench testing in support of this submission. It was designed and is manufactured under the Quality System Regulations of 21CFR 820 and ISO 13485. The following quality assurance measures were applied to the development of the system:
- Risk Analysis
- · Required Reviews
- Design Reviews
- Testing on unit level (Module verification)
- Integration testing (System verification)
- · Performance testing (Verification)
- · Safety testing (Verification)
- Simulated use testing (Validation)
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## GE Healthcare 510(k) Premarket Notification Submission for Revolution ACT
GE believes the Revolution ACT system is of comparable type and substantially equivalent to our currently marketed system Optima CT520.
The substantial equivalence was also based on software documentation for a "Moderate" level of concern device.
#### Summary of Additional Testing
#### Non-Clinical Testing:
In addition to the verification and validation testing successfully completed as required by GE Healthcare's quality system, additional engineering bench testing was performed. The test were chosen to provide a broad base of system performance testing that is relevant to demonstrating Revolution ACT's ability for safe and effective diagnostic CT imaging. Because of the basic nature (existing technology and features) of Revolution ACT, no new metrics or test methods were needed for the bench testing evaluations.
The additional engineering testing performed included performance testing related to Revolution ACT's ability to scan large patients, the performance tests in accordance with IEC 61223-3-5, and testing of the new SmartPlan feature.
A comparision of: CT number accuracy; CT number uniformity; Image noise (standard deviation); Modulation Transfer Function; Noise Power Spectrum; and Slice thickness between the predicate and subject device was provided.
lmages from both a uniform phantom and one with embedded LCD objects were provided for the subject device using several reconstruction techniques.
Additionally provided was a description of the process used to port ASiR onto the new hardware of the subject device.
#### Clinical Testing:
The type of design changes and having features and functions that are found on the predicate device and other cleared GE CT systems, support using scientific, established, standardized engineering/physics-based verification and performance testing to demonstrate that the device is as safe and as effective as the predicate device.
However, to provide further verification that the previously cleared iterative reconstruction algorithm worked on the modified hardware platform, sample clinical images reviewed by a board certified radiologist were provided.
There are several hundred Revolution ACT systems installed globally. The device (both 16 and 8-slice configurations) have been in commercial use for clinical diagnosis and its performance and image quality has been demonstrated to be diagnostically acceptable.
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510(k) Premarket Notification Submission for Revolution ACT
#### Substantial Equivalence Conclusion:
Given that:
- . The updated Indications for Use fall within the indicatons for use, and the changes do not represent any new intended uses.
- RevolutionACT has been tested and certified to comply with the above indentifed . standards. And development under our quality system.
- " Verification testing along with additional engineering testing demonstrated Revolution ACT's equivalent performance to currently marketed the predicate and other cleared GE CT devices and is therefore as safe and effective.
- . The changes and the verification, validation, and additional engineering testing did not raise new or different questions of safety and effectiveness, and no new hazards were created.
GE Healthcare believes that the Revolution ACT is as safe and effective for its intended use, and performs in a substantially equivalent manner to the predicate device, Optima CT520
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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.
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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.
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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.
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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.
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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.