1998
DOI: 10.1002/jmri.1880080625
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Cardiovascular catheters and accessories: Ex vivo testing of ferromagnetism, heating, and artifacts associated with MRI

Abstract: The purpose of this study was to evaluate the MR safety of cardiovascular catheters and accessories. Intravascular cardiovascular catheters and accessories were tested for MR safety at 1.5 T using previously described techniques with respect to the evaluation of magnetic field attraction (deflection angle method), heating (temperature measured immediately before and after performing MRI), and artifacts (using a fast spoiled gradient-recalled acquisition in steady state [GRASS] pulse sequence). Two devices were… Show more

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Cited by 41 publications
(33 citation statements)
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“…Polar graph paper was used to evaluate the deflection angle instead of the previously proposed wooden protractor [21]. The polar graph was in concentric form at a distance of 3 mm and a radial distance of 5°.…”
Section: Suspension Apparatusmentioning
confidence: 99%
See 2 more Smart Citations
“…Polar graph paper was used to evaluate the deflection angle instead of the previously proposed wooden protractor [21]. The polar graph was in concentric form at a distance of 3 mm and a radial distance of 5°.…”
Section: Suspension Apparatusmentioning
confidence: 99%
“…The total height from the suspension node to the tip of marker was 27 cm. The plate and colored dough weighed 30 g. The motor system, including the motor itself, encoder, and part of the shielding, weighed 195 g. The plate, threads and marker weighed 5 g. Polar graph paper was used to evaluate the deflection angle instead of the previously proposed wooden protractor [21]. The polar graph was in concentric form at a distance of 3 mm and a radial distance of 5 • .…”
Section: Suspension Apparatusmentioning
confidence: 99%
See 1 more Smart Citation
“…3,78,79 The MR examination may induce sufficient voltages and currents in electrically conductive material so as to result in thermal injuries and burns to adjacent tissue (including myocardial tissue). 80,81 Although the theoretical risk exists that MR examination in patients with retained temporary epicardial leads, which consist of electrically conductive material, could lead to cardiac excitation or thermal injury, such retained leads are typically relatively short in length, usually do not form large loops, and are generally not believed to pose a significant risk during MR scanning.…”
Section: Background Datamentioning
confidence: 99%
“…After an incident where a cardiovascular catheter melted during the monitoring of a patient in a magnetic resonance imaging (MRI) system [1], there have been serious concerns pertaining to the use of surgical tools during MRI scanning. More than 70% of MRI injuries have been due to thermal burns [2].…”
Section: Introductionmentioning
confidence: 99%