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A simple MR-compatible infusion pump
M R Prince1, D L Narasimham, F J Londy
1Department of Radiology, University of Michigan, Ann Arbor 48109-0300, USA.
Magnetic Resonance Imaging
|January 1, 1996
Abstract:
A simple, mechanical infusion pump that employs a constant force, nonferromagnetic spring to squeeze a syringe is described. The contrast infusion rate is determined by the spring force, gadolinium solution viscosity, and the resistance of either a user-selected needle or a precision oriffice according to Poiseuille's Law or the Bernoulli effect. Its use in dynamic, gadolinium-enhanced 3D MR angiography is described.