• PD ISO/TS 10974:2012

    Current The latest, up-to-date edition.

    Assessment of the safety of magnetic resonance imaging for patients with an active implantable medical device

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-09-2012

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols and abbreviated terms
    5 General requirements for non-implantable parts
    6 Requirements for particular AIMDs
    7 General considerations for application of the tests of
       this document
    8 Protection from harm to the patient caused by
       RF-induced heating
    9 Protection from harm to the patient caused by
       gradient-induced device heating
    10 Protection from harm to the patient caused by
       gradient-induced vibration
    11 Protection from harm to the patient caused by
       B[0]-induced force
    12 Protection from harm to the patient caused by
       B[0]-induced torque
    13 Protection from harm to the patient caused by
       gradient-induced extrinsic electric potential
    14 Protection from harm to the patient caused by
       B[0]-induced malfunction
    15 Protection from harm to the patient caused by
       RF-induced malfunction and RF rectification
    16 Protection from harm to the patient caused by
       gradient-induced malfunction
    17 Combined fields test
    18 Markings and accompanying documentation
    Annex A (normative) - Pulsed gradient exposure for
            Clause 10, Clause 13, and Clause 16
    Annex B (informative) - Derivation of lead length
            factor for injected voltage test levels for
            Clause 13 and Clause 16
    Annex C (informative) - Tier 1 high tangential E-field
            trough line resonator
    Annex D (informative) - Supporting information and
            rationale for gradient-induced device heating
    Annex E (informative) - Example RF injection network
    Annex F (informative) - Supporting information and
            rationale for MR-induced vibration
    Annex G (informative) - Gradient vibration patent
            declaration form
    Annex H (informative) - Assessment of dielectric and
            thermal parameters
    Annex I (informative) - RF exposure system validation
            method
    Annex J (informative) - MR scanner RF transmit coil
    Annex K (informative) - Current distribution on the
            AIMD as a function of the phase distribution of
            the incident field
    Annex L (informative) - Tissue simulating medium
            formulations
    Annex M (informative) - Generation of incident fields
    Annex N (informative) - Dielectric and thermal tissue
            properties
    Annex O (informative) - Gradient field injected
            testing - AIMD electrode tissue impedance
            determination method
    Annex P (informative) - Estimation of conservative
            B[1] and 10g averaged E-field values for Tier 1
            for RF-induced heating and RF malfunction
    Annex Q (informative) - AIMD configuration
    Annex R (informative) - Electrically excitable tissue
            stimulation, terms and definitions
    Annex S (informative) - Combined fields test
    Annex T (informative) - General methods for modeling
            dB/dt levels in MR gradient coils
    Bibliography

    Abstract - (Show below) - (Hide below)

    Pertains to implantable parts of active implantable medical devices (AIMDs) intended to be used in patients who undergo a magnetic resonance scan in 1,5 T, cylindrical (circular or elliptical cross-section) bore, whole body MR scanners operating at approximately 64 MHz with whole body coil excitation.

    General Product Information - (Show below) - (Hide below)

    Committee CH/150/2
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM F 2503 : 2013 : REDLINE Standard Practice for Marking Medical Devices and Other Items for Safety in the Magnetic Resonance Environment
    IEC 60601-2-33:2010+AMD1:2013+AMD2:2015 CSV Medical electrical equipment - Part 2-33: Particular requirements for the basic safety and essential performance of magnetic resonance equipment for medical diagnosis
    IEEE C95.3-2002 IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz-300 GHz
    ASTM F 2052 : 2015 : REDLINE Standard Test Method for Measurement of Magnetically Induced Displacement Force on Medical Devices in the Magnetic Resonance Environment
    ISO 14708-1:2014 Implants for surgery — Active implantable medical devices — Part 1: General requirements for safety, marking and for information to be provided by the manufacturer
    ASTM F 2213 : 2017 : REDLINE Standard Test Method for Measurement of Magnetically Induced Torque on Medical Devices in the Magnetic Resonance Environment
    ISO 5841-3:2013 Implants for surgery — Cardiac pacemakers — Part 3: Low-profile connectors (IS-1) for implantable pacemakers
    ISO 27186:2010 Active implantable medical devices Four-pole connector system for implantable cardiac rhythm management devices - Dimensional and test requirements
    ISO 14971:2007 Medical devices Application of risk management to medical devices
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