USE OF MAGNETIZATION-TRANSFER CONTRAST TO IMPROVE CEREBRAL 3D MR-ANGIOGRAPHY

被引：12

作者：

DOUSSET, V ^{[1
]}

FRANCONI, JM ^{[1
]}

DEGREZE, P ^{[1
]}

BALDERRAMA, J ^{[1
]}

LEXA, F ^{[1
]}

CAILLE, JM ^{[1
]}

机构：

[1] SIEMENS,PARIS,FRANCE

来源：

NEURORADIOLOGY | 1994年 / 36卷 / 03期

关键词：

MAGNETIC RESONANCE IMAGING TECHNIQUES; MAGNETIC RESONANCE ANGIOGRAPHY; MAGNETIZATION TRANSFER CONTRAST;

D O I：

10.1007/BF00588128

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

To improve 3D-time of flight (3D-TOF) magnetic resonance angiography, we used magnetisation transfer (MT) to increase the contrast between flowing blood and stationary tissues. With a 1.5 KHz off-resonance radio-frequency MT applied for 16 ms at a maximum power within specific absorption rate (SAR) limits, a 37% decrease in the signal of white matter was obtained, whereas the signal from flowing blood decreased by only 8%. An improvement in maximum intensity projection (MIP) image quality was obtained all MT-3DTOF studies on seven volunteers using progressively more powerful MT pulses. Routine clinical use of MT-3DTOF appears promising and can be achieved at any strength field.

引用

页码：188 / 192

页数：5

共 19 条

[11]

MASARYK TJ, 1991, MAGNETIC RESONANCE I, P1079

[12]

MULLER RN, 1983, EUR J RADIOL, V3, P286

[13] MAGNETIZATION TRANSFER TIME-OF-FLIGHT MAGNETIC-RESONANCE ANGIOGRAPHY [J].