Abstract:
:Written informed consent was obtained prior to all human studies after the institutional review board approved the protocol. A continuous arterial spin-labeling technique with an amplitude-modulated control was implemented by using a single coil at 3.0 T. Adiabatic inversion efficiency at 3.0 T, comparable to that at 1.5 T, was achieved by reducing the amplitude of radiofrequency pulses and gradient strengths appropriately. The amplitude-modulated control provided a good match for the magnetization transfer effect of labeling pulses, allowing multisection perfusion magnetic resonance imaging of the whole brain. Comparison of multisection continuous and pulsed arterial spin-labeling methods at 3.0 T showed a 33% improvement in signal-to-noise ratio by using the former approach.
journal_name
Radiologyjournal_title
Radiologyauthors
Wang J,Zhang Y,Wolf RL,Roc AC,Alsop DC,Detre JAdoi
10.1148/radiol.2351031663subject
Has Abstractpub_date
2005-04-01 00:00:00pages
218-28issue
1eissn
0033-8419issn
1527-1315pii
2351031663journal_volume
235pub_type
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