AUTOMATED DETECTION OF BOLUS ARRIVAL AND INITIATION OF DATA-ACQUISITION IN FAST, 3-DIMENSIONAL, GADOLINIUM-ENHANCED MR-ANGIOGRAPHY

Authors
FOO TKF SARANATHAN M PRINCE MR CHENEVERT TL
Citation
Tkf. Foo et al., AUTOMATED DETECTION OF BOLUS ARRIVAL AND INITIATION OF DATA-ACQUISITION IN FAST, 3-DIMENSIONAL, GADOLINIUM-ENHANCED MR-ANGIOGRAPHY, Radiology, 203(1), 1997, pp. 275-280
Citations number
16
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
Journal title
Radiology → ACNP
ISSN journal
00338419
Volume
203
Issue
1
Year of publication
1997
Pages
275 - 280
Database
ISI
SICI code
0033-8419(1997)203:1<275:ADOBAA>2.0.ZU;2-3
Abstract
Automatic triggering of magnetic resonance (MR) angiography with detec tion of a contrast material bolus was evaluated. Signal intensity chan ges with time were tracked in a prescribed tracking or monitoring volu me by a parallel signal processing unit that automatically started dat a acquisition once user-defined thresholds were exceeded. This techniq ue, referred to as MR Smartprep, was reliable and avoided the inconsis tencies of manual timing.