(228 days)
The Discovery NM 750b Gamma Camera is intended to measure and image the distribution of selected single photon emission radioisotopes in the human body to aid in the evaluation of lesions. The resultant images are intended to be reviewed by qualified medical professionals. The Discovery NM 750b Gamma Camera is intended for diagnostic imaging of the breast and other small body parts. The Discovery NM 750b Gamma Camera when used for breast imaging is intended as an adjunct to mammography or other breast imaging modalities (it is not intended for primary screening of the population). The Discovery NM 750b Gamma Camera is indicated for planar and dynamic planar scintigraphy in the energy range 80-200ke V for the detection and display of radioisotope tracer uptake in patients of all ages.
When used with the optional Discovery NM 750b Biopsy system, the Discovery NM 750b is designed to accurately locate, in three dimensions, lesions in the breast using information derived from stereotactic pairs of two-dimensional images. It is intended to provide guidance for interventional purposes such as biopsy and pre-surgical localization.
The Discovery NM 750b Biopsy system is an optional accessory for the Discovery NM 750b gamma camera (K102231) that utilizes stereotactic imaging to help guide invasive procedures. It is intended for 3D lesion localization to provide the physician image guidance for vacuum assisted needle biopsy of breast lesions determined to be suspicious through molecular breast imagine or other imaging.
The Biopsy system uses a pair of CZT "biopsy" detectors with fixed stereotactic positions. These two detectors acquire pair of anqulated two-dimensional images that are used in determining the 3D localization of the pre-identified suspicious lesion.
The Discovery NM750b Biopsy system includes hardware and software components, which auides the user throughout the biopsv work-flow. The hardware components enable the use of a variety of off-the-shelf biopsy vacuum needles.
In addition to the hardware components, the biopsy system accessory includes software components which, in part, through the user interface help quide the user stepwise through the biopsy workflow. The Discovery NM 750b Biopsy system is designed to support a variety of commercially available vacuum assisted biopsy devices and needles.
The provided text lacks specific acceptance criteria and detailed study results for the Discovery NM 750b Biopsy system. While it mentions various tests performed, it does not present quantifiable metrics or a clear study that "proves" the device meets specific acceptance criteria in a structured manner.
However, based on the information provided, here's an attempt to answer your request by extracting what is available and noting what is absent:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not explicitly state formal acceptance criteria with numerical targets. Instead, it describes general successful completion of various tests.
| Acceptance Criteria (Inferred from text) | Reported Device Performance (Where available) |
|---|---|
| Conformance to applicable IEC 60601-1 standards | "completed testing and is certified to conform to the applicable IEC 60601-1 standards." |
| No new hazards identified | "No new hazards were identified" |
| No unexpected test results obtained | "no unexpected test results were obtained." |
| Performance according to specifications | "The testing demonstrated that the Discovery NM750b Biopsy system performs according to specifications" |
| Functions as intended | "and functions as intended." |
| Successful verification/validation testing | "successful verification/validation testing" |
| Accurate 3D localization of lesions (implied by Intended Use) | "[The system is] designed to accurately locate, in three dimensions, lesions in the breast using information derived from stereotactic pairs of two-dimensional images. It is intended to provide guidance for interventional purposes such as biopsy and pre-surgical localization." Bench performance testing using phantoms and simulated clinical use testing by physicians were performed to demonstrate this. |
| Guidance for interventional purposes (biopsy and pre-surgical localization) | "It is intended to provide guidance for interventional purposes such as biopsy and pre-surgical localization." Simulated clinical use testing by physicians demonstrated utility. |
2. Sample Size Used for the Test Set and Data Provenance
The document mentions "additional engineering bench performance testing using phantoms" and "simulated clinical use testing performed by physicians using a commercially available breast biopsy phantom and a supporting phantom." It specifies "This phantom setup had radiotracer-injected simulated lesions against a uniform radioactive background. The activities of the lesions and background were set to be representative of actual clinical use."
- Sample Size for Test Set: Not explicitly stated as a number of cases or lesions. It refers to "cases that represent a broad range of clinically relevant scenarios."
- Data Provenance: The data appears to be prospective from simulated clinical scenarios using phantoms. There is no mention of human subject data or country of origin for such data.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Their Qualifications
- Experts used: "physicians" performed the simulated clinical use testing.
- Qualifications of experts: Not specified beyond "physicians."
4. Adjudication Method for the Test Set
Not mentioned. The testing was described as "physician-performed clinical simulation testing." It's unclear if multiple physicians reviewed the same cases or if there was any adjudication process if different outcomes were observed.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done
No, an MRMC comparative effectiveness study is not mentioned. The study described focused on the device's performance in simulated clinical scenarios, not on comparing human reader performance with and without AI assistance from this specific device.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done
The document describes the "Discovery NM750b Biopsy system" as including both hardware and software components that "guides the user throughout the biopsv work-flow." The testing involved "simulated clinical use testing performed by physicians." This suggests the evaluation was for the system as a whole, with human involvement, rather than a standalone algorithm performance without human interaction.
7. The Type of Ground Truth Used
The ground truth for the "simulated clinical use testing" was based on a phantom setup with "radiotracer-injected simulated lesions" where their "activities of the lesions and background were set to be representative of actual clinical use." This is an artificial, controlled ground truth rather than expert consensus, pathology, or outcomes data from human patients.
8. The Sample Size for the Training Set
The document describes the device as an optional accessory using "stereotactic imaging and optics principles" that are "well established." It states the "technological characteristics and corresponding fundamental principles of operation of the Biopsy System are identical or equivalent to that of the GammaLoc system and Senoegraphe Stereo." This suggests the device leverages existing, established technology rather than a machine learning model that would require a distinct training set. Therefore, a training set size is not applicable as described in the context of typical AI/ML-based devices.
9. How the Ground Truth for the Training Set was Established
As no training set (in the AI/ML sense) is mentioned or implied for this device's core functionality, this question is not applicable. The device relies on physical principles and established imaging techniques.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
December 12, 2016
GE Healthcare % Mr. Efrat Hartog-David Regulatory Affairs Manager 4 Hayozma Street Tirat Hacarmel, 30200 ISRAEL
Re: K160933
Trade/Device Name: Discovery NM 750b Biopsy Regulation Number: 21 CFR 892.1100 Regulation Name: Scintillation (gamma) camera Regulatory Class: I Product Code: IYX Dated: October 20, 2016 Received: October 27, 2016
Dear Mr. Hartog-David:
This letter corrects our substantially equivalent letter of November 18, 2016. 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/Resourcesfor You/Industry/default.htm.
Sincerely yours.
Michael D'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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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
Indications for Use
Expiration Date: January 31, 2017 See PRA Statement below.
Form Approved: OMB No. 0910-0120
510(k) Number (if known) K160933
Device Name Discovery NM 750b Biopsy
Indications for Use (Describe)
The Discovery NM 750b Gamma Camera is intended to measure and image the distribution of selected single photon emission radioisotopes in the human body to aid in the evaluation of lesions. The resultant images are intended to be reviewed by qualified medical professionals. The Discovery NM 750b Gamma Camera is intended for diagnostic imaging of the breast and other small body parts. The Discovery NM 750b Gamma Camera when used for breast imaging is intended as an adjunct to mammography or other breast imaging modalities (it is not intended for primary screening of the population). The Discovery NM 750b Gamma Camera is indicated for planar and dynamic planar scintigraphy in the energy range 80-200ke V for the detection and display of radioisotope tracer uptake in patients of all ages.
When used with the optional Discovery NM 750b Biopsy system, the Discovery NM 750b is designed to accurately locate, in three dimensions, lesions in the breast using information derived from stereotactic pairs of two-dimensional images. It is intended to provide guidance for interventional purposes such as biopsy and pre-surgical localization.
| 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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510(k) SUMMARY OF SAFETY AND EFFECTIVNESS
This 510(k) summary of Safety and Effectiveness information is submitted in accordance with the requirement of 21 CFR Part 807.87(h):
| Date: | April 1st, 2016 |
|---|---|
| Submitter: | GE Medical Systems Israel, Functional Imaging (GE Healthcare)4 Hayozma StreetTirat Hacarmel, 30200, Israel |
| Primary Contact: | Efrat Hartog-DavidRegulatory Affairs ManagerGE Healthcare, GE Medical Systems Israel, Functional Imaging+972-4-8563666 ext. 805+972-4-8577662 |
| Secondary Contacts: | John JaeckleChief Regulatory Affairs StrategistGE HealthcareTel: 262-424-9547email: john.jaeckle@ge.com |
| Huy DoanDirector, Global Regulatory AffairsMolecular Imaging and Computed TomographyGE HealthcareTel: 262 312 7751email: Huy.Doan@ge.com | |
| Device Trade Name: | Discovery NM750b Biopsy |
| Common / UsualName: | Scintillation (gamma) cameraD750b Biopsy system |
| Classification Names | 21CFR 892.1100 |
| Device Classification | Class I |
| Product Code: | 90 IYX |
| Predicate Device(s): | Discovery NM 750b (K102231), GammaLoc System (K082588) |
| Reference Device: | Senographe Stereo (K040125) |
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Image /page/4/Picture/0 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'g' and 'e' intertwined in a stylized script, enclosed within a blue circle. The circle is surrounded by a white, decorative border that resembles stylized water droplets or swirls.
| Device Description: | The Discovery NM 750b Biopsy system is an optional accessory forthe Discovery NM 750b gamma camera (K102231) that utilizesstereotactic imaging to help guide invasive procedures. It isintended for 3D lesion localization to provide the physician imageguidance for vacuum assisted needle biopsy of breast lesionsdetermined to be suspicious through molecular breast imagine orother imaging. |
|---|---|
| --------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
The Biopsy system uses a pair of CZT "biopsy" detectors with fixed stereotactic positions. These two detectors acquire pair of anqulated two-dimensional images that are used in determining the 3D localization of the pre-identified suspicious lesion.
The Discovery NM750b Biopsy system includes hardware and software components, which auides the user throughout the biopsv work-flow. The hardware components enable the use of a variety of off-the-shelf biopsy vacuum needles.
In addition to the hardware components, the biopsy system accessory includes software components which, in part, through the user interface help quide the user stepwise through the biopsy workflow. The Discovery NM 750b Biopsy system is designed to support a variety of commercially available vacuum assisted biopsy devices and needles.
- The Discovery NM750b Biopsy system is an optional accessory to Intended Use: the Discovery NM750b Gamma Camera intended for lesion localization in the breast
- The Discovery NM 750b Gamma Camera is intended to measure Indications for Use: and image the distribution of selected single photon emission radioisotopes in the human body to aid in the evaluation of lesions. The resultant images are intended to be reviewed by qualified medical professionals. The Discovery NM 750b Gamma Camera is intended for diagnostic imaging of the breast and other small body parts. The Discovery NM 750b Gamma Camera when used for breast imaging is intended as an adjunct to mammography or other breast imaging modalities (it is not intended for primary screening of the population). The Discovery NM 750b Gamma Camera is indicated for planar and dynamic planar scintigraphy in the energy range 80-200keV for the detection and display of radioisotope tracer uptake in patients of all ages.
When used with the optional Discovery NM 750b Biopsy system, the Discovery NM 750b is designed to accurately locate, in three dimensions, lesions in the breast using information derived from stereotactic pairs of two-dimensional images. It is intended to provide guidance for interventional purposes such as biopsy and pre-surgical localization.
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| Technology: | The technological characteristics and corresponding fundamental principles of operation of the imaging unit are identical to that of Discovery NM750b. As discussed above, the Discovery NM750b Biopsy System has the same intended use and similar indications for use to its legally marketed predicate devices, the Discovery NM750b and the GammaLoc system. |
|---|---|
| The Discovery NM 750b Biopsy accessory's design/operating principle is identical to other well established stereotactic imaging and optics principles. The technological characteristics and corresponding fundamental principles of operation of the Biopsy System are identical or equivalent to that of the GammaLoc system and Senoegraphe Stereo. | |
| Differences between the Discovery NM 750b Biopsy device and the GammaLoc system include simultaneous vs. sequential acquisition of stereotactic images, the stereotactic angle, lesion verification in X, Y, and existence of additional image viewing tools. | |
| The differences between the Discovery NM 750b Biopsy device and Senography Stereo include simultaneous vs. sequential acquisition of stereotactic images, the stereotactic angle, lesion verification in X, Y, and photon source for image creation. | |
| Stereotactic imaging is based upon acquiring two images taken from different angles of the anatomy of interest. Because of the different acquisition positions, the two 2D images can be used to compute the three -dimensional localization of the lesion. The three-dimensional information is used by the physician to provide guidance for interventional purposes such as biopsy and pre- surgical localization. | |
| Determination ofSubstantialEquivalence: | Discovery NM750b Biopsy system has completed testing and is certified to conform to the applicable IEC 60601-1 standards. The device has successfully completed all design control testing per GEHC quality system. No new hazards were identified and no unexpected test results were obtained. The Discovery NM750b Biopsy system was designed and will be 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 AnalysisRequired ReviewsDesign Reviews |
- . Software Development Lifecycle
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Image /page/6/Picture/1 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'GE' intertwined within a blue circle. The letters are stylized and connected, giving the logo a distinctive and recognizable appearance.
- . Testing on unit level (Module verification)
- Integration testing (System verification) ●
- Performance testing (Verification)
- . Safety testing (Verification)
- Simulated use testing (Validation)
The safety and performance of the Discovery NM750b Biopsy system was demonstrated through full verification testing, additional engineering bench performance testing using phantoms, and simulated clinical use testing performed by physicians using a commercially available breast biopsy phantom and a supporting phantom. This phantom setup had radiotracer-injected simulated lesions against a uniform radioactive background. The activities of the lesions and background were set to be representative of actual clinical use.
The simulated clinical testing performed with the software driven workflow, provided data from cases that represent a broad range of clinically relevant scenarios taken variables such as lesion size, lesion position, gantry orientation, VAD type. Worst case and challenging scenarios were included.
These tests were performed to provide the requisite data to substantiate performance, claims, and ultimately substantial equivalence. The testing demonstrated that the Discovery NM750b Biopsy system performs according to specifications and functions as intended.
- Based on conformance to standards; development under GE Conclusion: Healthcare's quality management system and design controls; successful verification/validation testing; well established stereotactic imaging principles; additional bench performance testing; and the physician-performed clinical simulation testing using an established, commercially available biopsy simulation phantom modified to better represent nuclear medicine characteristics, GE Healthcare believes that the Discovery NM 750b Biopsy system accessory is substantially equivalent to its predicate devices [Discovery NM 750b (K102231) and GammaLoc (K082588)] and reference device (Senographe Stereo (K040125)). Therefore GE concludes that the Discovery NM 750b Biopsy is safe and effective for its intended use
§ 892.1100 Scintillation (gamma) camera.
(a)
Identification. A scintillation (gamma) camera is a device intended to image the distribution of radionuclides in the body by means of a photon radiation detector. This generic type of device may include signal analysis and display equipment, patient and equipment supports, radionuclide anatomical markers, component parts, and accessories.(b)
Classification. Class I (general controls).