𝔖 Bobbio Scriptorium
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MR imaging of patients with implanted drug infusion pumps

✍ Scribed by Reinhard Von Roemeling; Rosellen M. Lanning; Frederick A. Eames

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
516 KB
Volume
1
Category
Article
ISSN
1053-1807

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✦ Synopsis

The influence of magnetic resonance (MR) imaging on the integrity and function of an implantable, programmable drug infusion pump and the distortion of the image by this device were tested. Six identical pumps were tested in magnetic fields of 1.5 T. Pump memory was not affected by the procedure. The pump rotor stalled (no infusion) as long as the device was within the magnetic field. Drug delivery resumed as programmed after the pump was removed from the field. No structural damage to the electrical or mechanical pump components was detected. The pump caused a circular image artifact (a signal dropout) within 8-10 cm of the device. The authors conclude that MR imaging is accurate if the area of interest is at least 10 cm from the pump, and that with awareness of temporary infusion cessation, it is safe to perform MR imaging in patients with this implanted pump.

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