ASTM F2182 PDF

ASTM F – 11a Standard Test Method for Measurement of Radio Frequency Induced Heating On or Near Passive Implants During Magnetic Resonance. ASTM Fa. Standard Test Method for Measurement of Radio Frequency Induced Heating On or Near Passive Implants During Magnetic. ◇ASTM Fa for Measurement of. Measurement of Radio Frequency Induced. Heating Near Passive Implants During MRI. ◇ASTM.

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Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Active view current version of standard.

The results may be used as an input to a computational model for estimating temperature rise due to the presence of that implant in a patient. For other implantation conditions for example, external fixation devices, percutaneous needles, catheters or tethered devices such as ablation probesmodifications of this test method are necessary. Because of possible additional heating, particularly when implant dimensions approaches or exceeds one quarter of the wavelength of the RF field inside the phantom, conclusions from measurements made at one static magnetic field strength do not apply to other field strengths and frequencies.

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While the focus in this test method is on 1. No other units of measurement are included in this standard. The heating measurements are made twice, once with the implant and then repeated at the same location without the implant.

The RF coil is assumed f21182 have quadrature excitation.

ASTM International – Standard References for ASTM F – 11a

Work Item s – proposed revisions of this standard. Other safety issues that should be addressed include magnetically induced displacement force and torque.

Historical Version s – view previous versions of standard. Other safety astk that should be addressed include magnetically induced displacement force and torque, as well as proper device function while in various configurations in the MR environment. No other units of measurement are included in this standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM F2182 – 11a

The combination of the test results and the computational model results may then be used to help assess the safety of a patient with the implant during an MR scan. The RF coil is assumed to have quadrature excitation. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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This test method describes a test procedure for evaluating the RF-induced temperature rise associated with an MR procedure involving a specific frequency of RF irradiation of an implant. While the focus in this test method is on 1. These two measurements estimate the local SAR and the local additional temperature rise with the implant.

Link to Active This link will always route to the current Active version of the standard. For other implantation conditions for example, external fixation devices, percutaneous needles, catheters or tethered devices such as ablation probesmodifications of this test method are necessary.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Work Item s – proposed revisions of this standard.