Increased-contrast, high-spatial-resolution, diffusion-weighted, spin-echo, echo-planar imaging

被引：6

作者：

Thompson, MR ^{[1
]}

Venkatesan, R ^{[1
]}

Kuppusamy, K ^{[1
]}

Celik, A ^{[1
]}

Lin, WL ^{[1
]}

Kido, DK ^{[1
]}

Haacke, EM ^{[1
]}

机构：

[1] Edward Mallinckrodt Inst Radiol, St Louis, MO 63110 USA

来源：

RADIOLOGY | 1999年 / 210卷 / 01期

关键词：

brain; MR; magnetic resonance (MR); technology;

D O I：

10.1148/radiology.210.1.r99ja25253

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：

An insertable head gradient coil with a maximum gradient amplitude of 45 mT/m and a rise time of 150 mu sec along all three major axes was used to collect high-spatial-resolution, single-shot, spin-echo, echo-planar, diffusion-weighted magnetic resonance images with b values ranging from 0 to 2,200 sec/mm(2). Improvements in spatial resolution allowed better visualization of large white matter tracts and their relation to adjacent anatomic structures. Excellent contrast and anatomic detail were revealed for most structures in :the brain when a sufficient number of acquisitions were collected.

引用

页码：253 / 259

页数：7

共 9 条

[1] Elimination of eddy current artifacts in diffusion-weighted echo-planar images: The use of bipolar gradients [J].

Alexander, AL ;

Tsuruda, JS ;

Parker, DL .

MAGNETIC RESONANCE IN MEDICINE, 1997, 38 (06) :1016-1021

[2]

BRADLEY WG, 1990, MRI ATLAS BRAIN

[3] IMAGING OF DIFFUSION AND MICROCIRCULATION WITH GRADIENT SENSITIZATION - DESIGN, STRATEGY, AND SIGNIFICANCE [J].

LEBIHAN, D ;

TURNER, R ;

MOONEN, CTW ;

PEKAR, J .

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING, 1991, 1 (01) :7-28

[4] Theory and application of static field inhomogeneity effects in gradient-echo imaging [J].

Reichenbach, JR ;

Venkatesan, R ;

Yablonskiy, DA ;

Thompson, MR ;

Lai, S ;

Haacke, EM .

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING, 1997, 7 (02) :266-279

[5] SPIN DIFFUSION MEASUREMENTS: SPIN ECHOES IN THE PRESENCE OF A TIME-DEPENDENT FIELD GRADIENT [J].

STEJSKAL, EO ;

TANNER, JE .

JOURNAL OF CHEMICAL PHYSICS, 1965, 42 (01) :288-+

[6]

THOMPSON MR, 1997, P FAST MRI WORKSH IN, P181

[7]

Venkatesan R, 1997, INT J IMAG SYST TECH, V8, P529, DOI 10.1002/(SICI)1098-1098(1997)8:6<529::AID-IMA5>3.0.CO

[8]

2-C

[9] IDENTIFICATION OF PREMYELINATION BY DIFFUSION-WEIGHTED MRI [J].

WIMBERGER, DM ;

ROBERTS, TP ;

BARKOVICH, AJ ;

PRAYER, LM ;

MOSELEY, ME ;

KUCHARCZYK, J .

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, 1995, 19 (01) :28-33

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