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Radiology. 1997 Apr;203(1):275-80.

Automated detection of bolus arrival and initiation of data acquisition in fast, three-dimensional, gadolinium-enhanced MR angiography.

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1
Applied Science Laboratory, GE Medical Systems, Bethesda, MD 20892-1061, USA.

Abstract

Automatic triggering of magnetic resonance (MR) angiography with detection of a contrast material bolus was evaluated. Signal intensity changes with time were tracked in a prescribed tracking or monitoring volume by a parallel signal processing unit that automatically started data acquisition once user-defined thresholds were exceeded. This technique, referred to as MR Smartprep, was reliable and avoided the inconsistencies of manual timing.

[Indexed for MEDLINE]

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