MR perfusion imaging of pulmonary parenchyma using pulsed arterial spin labeling techniques: FAIRER and FAIR

Authors
Citation
Vm. Mai et Ss. Berr, MR perfusion imaging of pulmonary parenchyma using pulsed arterial spin labeling techniques: FAIRER and FAIR, J MAGN R I, 9(3), 1999, pp. 483-487
Citations number
25
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging
Journal title
JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING
ISSN journal
10531807 → ACNP
Volume
9
Issue
3
Year of publication
1999
Pages
483 - 487
Database
ISI
SICI code
1053-1807(199903)9:3<483:MPIOPP>2.0.ZU;2-Q
Abstract
Magnetic resonance imaging of pulmonary parenchyma perfusion using pulsed a rterial spin labeling (ASL) techniques is presented, ASL uses magnetically labeled water as an endogenous, freely diffusible tracer, Presented are com parative results of ASL methods called Flow sensitive Alternating Inversion Recovery (FAIR), and FAIR with an Extra Radiofrequency pulse (FAIRER), Six healthy human volunteers were imaged. Perfusion-weighted images at differe nt time delays, TI, were calculated from the subtraction of the control and tag images, which were acquired within a single breathhold. Detailed pulmo nary structures can be visualized with negligible cardiac or respiratory mo tion artifacts. Different patterns of signal enhancement between the pulmon ary vessels and parenchyma are shown in the perfusion images acquired at di fferent TIs, (C) 1999 Wiley-Liss, Inc.