K Number
K241429
Date Cleared
2024-08-13

(84 days)

Product Code
Regulation Number
892.1000
Reference & Predicate Devices
N/A
Predicate For
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The ECHELON Synergy System is an imaging device and is intended to provide the physician with physiological and clinical information, obtained non-invasively and without the use of ionizing radiation. The MR system produces transverse, coronal, sagittal, oblique, and curved cross sectional images that display the internal structure of the head, body, or extremities. The images produced by the MR system reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. The NMR properties that determine the image appearance are proton density, spinlattice relaxation time (TI), spin-spin relaxation time (T2) and flow. When interpreted by a trained physician, these images provide information that can be useful in diagnosis determination.

Anatomical Region: Head, Body, Spine, Extremities
Nucleus excited: Proton

Diagnostic uses:

  • · TI, T2, proton density weighted imaging
  • · Diffusion weighted imaging
  • · MR Angiography
  • · Image processing
  • · Spectroscopy
  • · Whole Body
Device Description

The ECHELON Synergy is a Magnetic Resonance Imaging System that utilizes a 1.5 Tesla superconducting magnet in a gantry design.

AI/ML Overview

The provided document is a 510(k) summary for the FUJIFILM Healthcare Corporation's ECHELON Synergy MRI System. This document asserts substantial equivalence to a predicate device and primarily focuses on technical characteristics and adherence to standards rather than detailed performance studies with acceptance criteria for a diagnostic aid.

Here's an analysis of the acceptance criteria and study information derived from the document:

1. A table of acceptance criteria and the reported device performance:

The document doesn't explicitly state quantitative acceptance criteria in terms of diagnostic performance metrics (e.g., sensitivity, specificity, AUC) because it's a 510(k) submission for an MRI system with an added coil, not a diagnostic algorithm. The acceptance criteria for the added Breast Coil 17 are implicitly tied to the performance and safety standards of the predicate device (ECHELON Synergy V10.0 K233687).

Acceptance Criteria (Implicit)Reported Device Performance
The new feature (Breast Coil 17) performs as intended for diagnostic use and maintains safety and effectiveness equivalent to the predicate device."Performance bench testing was conducted on the applicable new feature. Test data confirmed that new feature perform as intended for diagnostic use." "Clinical image examples are provided for applicable new feature and that we judged to be sufficient to evaluate clinical usability. In addition, a radiologist validated that the clinical images have acceptable image quality for clinical use."
No significant changes in technological characteristics compared to the predicate device, especially regarding safety (gradient system and RF system controls, pulse sequences)."Added coil doesn't constitute a new intended use. There are no significant changes in technological characteristics. For safety, gradient system and RF system is controlled according to same regulation as ECHELON Synergy V10.0 (K233687)." "There are no differences regarding hardware units." "There are no differences regarding software functionality."
Conformance with applicable medical device safety and performance standards (e.g., IEC 60601 series, NEMA MS series).The device was "subjected to the following laboratory testing" (listed IEC and NEMA standards) and is "in conformance with the applicable parts of the following standards."

2. Sample size used for the test set and the data provenance:

  • Sample size for test set: Not explicitly stated as a number of cases or patients. The document mentions "Clinical image examples."
  • Data provenance: Not explicitly stated (e.g., country of origin, retrospective or prospective). It only states that "Clinical images were collected and analyzed."

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

  • Number of experts: One radiologist.
  • Qualifications of experts: A "radiologist" validated the clinical images. No further details on experience level are provided.

4. Adjudication method for the test set:

  • Adjudication method: None mentioned beyond a single radiologist's validation of image quality for clinical use.

5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, if so, what was the effect size of how much human readers improve with AI vs without AI assistance:

  • MRMC study: No, an MRMC comparative effectiveness study was not explicitly mentioned or implied. This submission is for an MRI system with an added coil, not an AI-powered diagnostic algorithm.

6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done:

  • Standalone performance: Not applicable. This device is an MRI system, not a standalone AI algorithm. The performance evaluation focused on the technical aspects and image quality of the MRI machine and its new coil.

7. The type of ground truth used:

  • Type of ground truth: Expert opinion (a single radiologist's validation of "acceptable image quality for clinical use"). This is tied to the demonstrative aspect of clinical image examples, rather than a definitive diagnostic truth for a disease state.

8. The sample size for the training set:

  • Sample size for training set: Not applicable. This document is about a hardware modification (an added coil) to an existing MRI system. It does not involve machine learning models that require training sets in the conventional sense.

9. How the ground truth for the training set was established:

  • How ground truth for training set was established: Not applicable, as there is no mention of a training set or machine learning model.

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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

August 13, 2024

FUJIFILM Healthcare Corporation Chaitrali Kulkarni Sr. Regulatory Affairs Specialist FUJIFILM Healthcare Americas Corporation 81 Hartwell Ave Suite 300 Lexington, Massachusetts 02421

Re: K241429

Trade/Device Name: ECHELON Synergy MRI System Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic Resonance Diagnostic Device Regulatory Class: Class II Product Code: LNH Dated: May 21, 2024 Received: May 21, 2024

Dear Chaitrali Kulkarni:

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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

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Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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 of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

Daniel M. Krainak, Ph.D. Assistant Director DHT8C: Division of Radiological Imaging and Radiation Therapy Devices OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health

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Indications for Use

Submission Number (if known)

K241429

Device Name

ECHELON Synergy MRI System

Indications for Use (Describe)

The ECHELON Synergy System is an imaging device and is intended to provide the physician with physiological and clinical information, obtained non-invasively and without the use of ionizing radiation. The MR system produces transverse, coronal, sagittal, oblique, and curved cross sectional images that display the internal structure of the head, body, or extremities. The images produced by the MR system reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. The NMR properties that determine the image appearance are proton density, spinlattice relaxation time (TI), spin-spin relaxation time (T2) and flow. When interpreted by a trained physician, these images provide information that can be useful in diagnosis determination.

Anatomical Region: Head, Body, Spine, Extremities Nucleus excited: Proton

Diagnostic uses:

  • · TI, T2, proton density weighted imaging
  • · Diffusion weighted imaging
  • · MR Angiography
  • · Image processing
  • · Spectroscopy
  • · Whole Body

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

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Submitter Information

Submitter:FUJIFILM Healthcare Corporation2-1, ShintoyofutaKashiwa-shi, Chiba, 277-0804 Japan
Contact:David LoeserRegulatory Affairs Specialist
Telephone number:703-472-9452
Telephone number:HCUSRegulatoryAffairs@fujifilm.com
Data:May 15, 2024

Subject Device Name

Trade/Proprietary Name:ECHELON Synergy MRI System
Regulation Number:21 CFR 892.1000
Regulation Name:System, Nuclear Magnetic Resonance Imaging
Product Code:LNH
Class:2
Panel:Radiology

Predicate Device Name

Predicate Device(s):ECHELON Synergy V10.0 (K233687)
Regulation Number:21 CFR 892.1000
Regulation Name:System, Nuclear Magnetic Resonance Imaging
Product CodeLNH
Class2
PanelRadiology

Device Intended Use

The ECHELON Synergy System is an imaging device and is intended to provide the physician with physiological and clinical information, obtained non-invasively and without the use of ionizing radiation. The MR system produces transverse, coronal, sagittal, oblique, and curved cross-sectional images that display the internal structure of the head, body, or extremities. The images produced by the MR system reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. The NMR properties that determine the image appearance are proton density, spin-lattice relaxation time (T1), spin-spin relaxation time (T2) and flow. When interpreted by a trained physician, these images provide information that can be useful in diagnosis determination.

Anatomical Region: Head, Body, Spine, Extremities

Nucleus excited: Proton

Diagnostic uses:

  • T1, T2, proton density weighted imaging ●
  • Diffusion weighted imaging
  • MR Angiography
  • Image processing
  • Spectroscopy
  • . Whole Body

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Device Description

Function

The ECHELON Synergy is a Magnetic Resonance Imaging System that utilizes a 1.5 Tesla superconducting magnet in a gantry design.

Scientific Concepts

Magnetic Resonance imaging (MRI) is based on the fact that certain atomic nuclei have electromagnetic properties that cause them to act as small spinning bar magnets. The most ubiguitous of these nuclei is hydrogen, which makes it the primary nuclei currently used in magnetic resonance imaging. When placed in a static maqnetic field, these nuclei assume a net orientation or alignment with the magnetic field, referred to as a net magnetization vector. The introduction of a short burst of radiofrequency (RF) excitation of a wavelength specific to the magnetic field strength and to the atomic nuclei under consideration can cause a re-orientation of the net magnetization vector. When the RF excitation is removed, the protons relax and return to their original vector. The rate of relaxation is exponential and varies with the character of the proton and its adjacent molecular environment. This re-orientation process is characterized by two exponential relaxation times, called T1 and T2. A RF emission or echo that can be measured accompanies these relaxation events.

The emissions are used to develop a representation of the relaxation events in a three dimensional matrix. Spatial localization is encoded into the echoes by varving the RF excitation. applying appropriate magnetic field gradients in the x, y, and z directions, and changing the direction and strength of these gradients. Images depicting the spatial distribution of the NMR characteristics can be reconstructed by using image processing techniques similar to those used in computed tomography.

Physical and Performance Characteristics

MRI is capable of producing high quality anatomical images without the associated risks of ionizing radiation. The biological properties that contribute to MR image contrast are different from those responsible for x-ray image contrast. In MR imaging, difference in proton density, blood flow, and T1 and T2 relaxation times can all contribute to image contrast. By varying the pulse sequence characteristics, the resulting images can emphasize T1, T2, proton density, or the molecular diffusion of water or other proton containing molecules. And MR system has the Function of measuring spectroscopy.

Performance Evaluation

The ECHELON Synergy MRI System is equivalent to the ECHELON Synergy V10.0 (K233687) with following exceptions:

  • . Breast Coil 17 is added.
    A rationale analysis was then conducted, and the results are contained in Table 1.
Testing TypeRationale Analysis
Performance Testing - BenchPerformance bench testing was conducted on the applicable new feature.Test data confirmed that new feature perform as intended for diagnostic use.
Performance Testing -ClinicalClinical image examples are provided for applicable new feature and that we judged to be sufficient to evaluate clinicalusability.

Table 1 Performance Analysis

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Device Technological Characteristics

The control and image processing hardware and the base elements of the system software are identical to the predicate device. The ECHELON Synergy MRI System is substantially equivalent to the ECHELON Synergy V10.0 (K233687). See tables below.

Te technological characteristics in regard to software of the ECHELON Synergy MRI System and the predicate are listed in Table 2.

ITEMPREDICATE DEVICESUBJECT DEVICEDIFFERENCE
ECHELON Synergy V10.0 (K233687)ECHELON Synergy MRI System
SystemStandards MetNEMA: MS 1, MS 2, MS 3, MS 4, MS 5, MS 8, MS 14,IEC: 60601-1, 60601-1-2, 60601-2-33, 62304NEMA: MS 1, MS 2, MS 3, MS 4, MS 5, MS 8, MS 14,IEC: 60601-1, 60601-1-2, 60601-2-33, 62304No
Magnet andGantryType and FieldStrengthSuper-conducting magnet, horizontal bore, 1.5 TeslaSuper-conducting magnet, horizontal bore, 1.5 TeslaNo
Resonant Frequency63.86MHz63.86MHzNo
Bore dimensionCircle shape with diameter 70cmCircle shape with diameter 70cmNo
Gradient SystemGradient Strength33mT/m33mT/mNo
Slew Rate130 T/m/sec130 T/m/secNo
Rise Time254µsec to 33mT/m254µsec to 33mT/mNo
Audible Noise (MCAN)
Ambient59.9 dBA59.9 dBANo
Lpeak122.7 dBA122.7 dBANo
Leq116.5 dBA116.5 dBANo
RF SystemTransmitter channels11No
Peak Envelop Power18 kW18 kWNo
Duty Cycle85% (Gating max), 10% at full power85% (Gating max), 10% at full powerNo
RF receiver channel3232No

Table 2 Comparison: Hardware

The hardware differences from the predicate device to the ECHELON Synergy MRI System are analyzed in Table 3.

Table 3 Hardware Comparison Analysis

FDARequirementsAnalyze why any differences between the subject device and predicate(s) do not render the device NSE (e.g., does notconstitute a new intended use; and any differences in technological characteristics are accompanied by information thatdemonstrates the device is as safe and effective as the predicate and do not raise different questions of safety andeffectiveness than the predicate ), affect safety or effectiveness, or raise different questions of safety and effectiveness(see section 513(i)(1)(A) of the FD&C Act and 21 CFR 807.87(f)).
DeviceModificationSummaryThe new receiver coil named Breast coil 17 is added to ECHELON Synergy MRI system. But there are no significantchanges in technology, engineering and performance.
SignificantChanges□ Manufacturing Process□ Labeling□ Technology□ Performance
□ Engineering□ Materials□ Others☑ None (See rationale statement)
FUJIFILMRationaleStatementAdded coil doesn't constitute a new intended use. There are no significant changes in technological characteristics. Forsafety, gradient system and RF system is controlled according to same regulation as ECHELON Synergy V10.0(K233687). So, safety and effectively of the device are same as ECHELON Synergy V10.0 (K233687).

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The technological characteristics in regards to coils of the ECHELON Synergy MRI System and the predicate are listed in Table 4.

ITEMPREDICATE DEVICESUBJECT DEVICEDIFFERENCE
RF CoilsTransmit CoilT/R BodyT/R BodyNo
Receiver CoilsFlexFit Neuro CoilFlexFit Neuro CoilNo
FlexFit Blanket Coil A,FlexFit Blanket Coil BFlexFit Blanket Coil A,FlexFit Blanket Coil BNo
Extremity CoilExtremity CoilNo
Hand/Wrist CoilHand/Wrist CoilNo
Breast CoilBreast CoilYes
Breast Support Kit 2Breast Support Kit 2Breast Coil 17Breast Support Holder
Micro Coil A,Micro Coil BMicro Coil A,Micro Coil BNo
Shoulder CoilShoulder CoilNo
Spine CoilSpine CoilNo
Foot/Ankle CoilFoot/Ankle CoilNo
Flex M Coil, Flex S CoilFlex M Coil, Flex S CoilNo
Table 4 Comparison: RF Coils
--------------------------------------

The coil differences from the predicate device to the ECHELON Synergy MRI System are analyzed in Table 5.

Table 5 Coil Comparison Analysis

FDARequirementsAnalyze why any differences between the subject device and predicate(s) do not render the device NSE (e.g., does notconstitute a new intended use; and any differences in technological characteristics are accompanied by information thatdemonstrates the device is as safe and effective as the predicate and do not raise different questions of safety andeffectiveness than the predicate ), affect safety or effectiveness, or raise different questions of safety and effectiveness(see section 513(i)(1)(A) of the FD&C Act and 21 CFR 807.87(f)).
DeviceModificationSummaryBreast coil 17 is added to ECHELON synergy MRI system.
SignificantChangesManufacturing ProcessLabelingTechnologyPerformance
□ Engineering□ Materials□ Others☑ None (See rationale statement)
FUJIFILMRationaleStatementAdded coil doesn't constitute a new intended use. There are no significant changes in technological characteristics.Therefore, safety, intended use and effectively of the RF coils are same as ECHELON Synergy V10.0 (K233687).

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The technological characteristics in regard to changes in functionality of the ECHELON Synergy MRI System as compared to the predicate are listed in Table 6.

Table 6 Comparison: Functionality
ITEMDIFFERENCESANALYSIS
Operating SystemNoneNo
CPU PlatformNoneNo
Application SoftwareNoneNo
Scan TasksNoneNo
2D Processing TasksNoneNo
3D Processing TasksNoneNo
Analysis TasksNoneNo
Maintenance TasksNoneNo
Viewport ToolsNoneNo
Film, Archive ToolsNoneNo
Network ToolsNoneNo
Protocol EnhancementsNoneNo
Pulse SequencesNoneNo
Monitoring ToolsNoneNo

The functionality differences from the predicate device to the ECHELON Synergy MRI System are analyzed in Table 7.

Table 7 Functionality Comparison Analysis
FDARequirementsAnalyze why any differences between the subject device and predicate(s) do not render the device NSE (e.g., does notconstitute a new intended use; and any differences in technological characteristics are accompanied by information thatdemonstrates the device is as safe and effective as the predicate and do not raise different questions of safety andeffectiveness than the predicate ), affect safety or effectiveness, or raise different questions of safety and effectiveness(see section 513(i)(1)(A) of the FD&C Act and 21 CFR 807.87(f)).
DeviceModificationSummaryThere are no differences from the predicate device.
SignificantChanges□ Manufacturing Process□ Labeling□ Technology□ Performance
□ Engineering□ Materials□ Others☑ None (See rationale statement)
FUJIFILMRationaleStatementThere are no significant changes in technological characteristics.For safety, pulse sequences are controlled according to the same safety limits as ECHELON Synergy V10.0(K233687). Therefore, safety and effectiveness of the device are the same as ECHELON Synergy V10.0 (K233687).

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Substantial Equivalence

A summary decision was based on analysis of Table 8.

Table 8 Rationale Analysis: ECHELON Synergy MRI System vs. Predicate

ITEMOverall Rationale Analysis
HardwareThere are no differences regarding hardware units.
CoilsAdded coil doesn't constitute a new intended use. There are no significant changes in technological characteristics.For safety, gradient system and RF system is controlled according to same regulation as ECHELON Synergy V10.0(K233687). So, safety and effectively of the device are same as ECHELON Synergy V10.0 (K233687).
FunctionalityThere are no differences regarding software functionality.

Therefore, based on a thorough analysis and comparison of the functions, scientific concepts, physical and performance characteristics, performance comparison and technological characteristics, the proposed ECHELON Synergy MRI System is considered substantially equivalent to the currently marketed predicate device (ECHELON Synergy V10.0 (K233687)) 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 ECHELON Synergy MRI System was subjected to the following laboratory testing.

  • ANSI / AAMI ES60601-1:2005/(R) 2012 and A1:2012. c1:2009/(r) 2012 and A2:2010/(R) 2012 . (consolidated text) medical electrical equipment - part 1: general requirements for basic safety and essential performance (IEC 60601-1:2005, mod).
  • IEC 60601-2-33 Edition 3.2 b:2015, medical electrical equipment part 2-33: particular . requirements for the basic safety and essential performance of magnetic resonance equipment for medical diagnostic.
  • IEC 62304 Edition 1.1 2015-06, CONSOLIDATED VERSION medical device software software ● life cycle processes.
  • . IEC 60601-1-2 Edition 4.1:2020-09. CONSOLIDATED VERSION medical electrical equipment part 1-2: general requirements for basic safety and essential performance - collateral standard: electromagnetic disturbances - requirements and tests.

The revisions to the ECHELON Synergy MRI System will have no effect on the standards tests, which were conducted on the ECHELON Synergy V10.0 (K233687) and included in the original submission.

Therefore, ECHELON Synergy MRI System is in conformance with the applicable parts of the following standards:

  • . NEMA MS 1-2008, Determination of Signal-to-noise Ratio (SNR) in Diagnostic Magnetic Resonance Images
  • NEMA MS 2-2008, Determination of Two-Dimensional Geometric Distortion in Diagnostic ● Magnetic Resonance Images
  • NEMA MS 3-2008, Determination of Image Uniformity in Diagnostic Magnetic Resonance Images
  • NEMA MS 4-2010, Acoustic Noise Measurement Procedure for Diagnostic Magnetic Resonance ● Imaging Devices
  • NEMA MS 5-2018, Determination of Slice Thickness in Diagnostic Resonance Imaging .
  • NEMA MS 8-2016, Characterization of the Specific Absorption Rate for Magnetic Resonance ● Imaging Systems
  • . NEMA Standards Publication MS 14-2019, Characterization of Radiofrequency (RF) Coil Heating in Magnetic Resonance Imaging Systems
  • . IEC 60825-1 Edition 2.0 2007-03, Safety of laser products - Part 1 : Equipment classification and requirements [including : Technical Corrigendum 1 (2008) interpretation Sheet 1 (2007) Interpretaion Sheet 2 (2007)]

Summary of Clinical Testing

Clinical images were collected and analyzed, to ensure that images from the new feature meet user needs.

As a result of the analysis:

Testing TypeRationale Analysis
Performance Testing –Clinical image examples are provided for applicable new feature and that we judged to be sufficient to evaluate clinical
Clinicalusability. In addition, a radiologist validated that the clinical images have acceptable image quality for clinical use.

Conclusions

The ECHELON Synergy MRI System is substantially equivalent with respect to hardware, software, safety, effectiveness, and functionality to the ECHELON Synergy V10.0 (K233687).

§ 892.1000 Magnetic resonance diagnostic device.

(a)
Identification. A magnetic resonance diagnostic device is intended for general diagnostic use to present images which reflect the spatial distribution and/or magnetic resonance spectra which reflect frequency and distribution of nuclei exhibiting nuclear magnetic resonance. Other physical parameters derived from the images and/or spectra may also be produced. The device includes hydrogen-1 (proton) imaging, sodium-23 imaging, hydrogen-1 spectroscopy, phosphorus-31 spectroscopy, and chemical shift imaging (preserving simultaneous frequency and spatial information).(b)
Classification. Class II (special controls). A magnetic resonance imaging disposable kit intended for use with a magnetic resonance diagnostic device only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.