Slice profile effects in adiabatic inversion: Application to multislice perfusion imaging

被引：54

作者：

Frank, LR ^{[1
]}

Wong, EC ^{[1
]}

Buxton, RB ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,DEPT RADIOL,SAN DIEGO,CA 92103

来源：

MAGNETIC RESONANCE IN MEDICINE | 1997年 / 38卷 / 04期

关键词：

adiabatic inversion; pulse arterial tagging; multislice perfusion imaging;

D O I：

10.1002/mrm.1910380409

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Imperfections in the slice profile of the adiabatic inversion induced by relaxation effects are shown to cause signal variations in pulsed arterial fagging schemes on the order of magnitude of perfusion changes, and result in gross errors in perfusion quantitation. Significant improvement can be made with minor modifications to the inversion pulse which facilitate the acquisition of quantitative, multislice perfusion images, as demonstrated in both a phantom and a normal human volunteer.

引用

页码：558 / 564

页数：7

共 17 条

[1]

BUXTON RB, IN PRESS MAGN RESON

[2]

EDELMAN RR, 1994, RADIOLOGY, V192, P512

[3] QUANTIFICATION OF RELATIVE CEREBRAL BLOOD-FLOW CHANGE BY FLOW-SENSITIVE ALTERNATING INVERSION-RECOVERY (FAIR) TECHNIQUE - APPLICATION TO FUNCTIONAL MAPPING [J].