Diffusion-weighted imaging of primary brain lymphomas: Effect of ADC value and signal intensity of T2-weighted imaging

被引：10

作者：

Akter, Masuma ^{[1
]}

Hirai, Toshinori ^{[1
]}

Makino, Keishi ^{[3
]}

Kitajima, Mika ^{[1
]}

Murakami, Ryuji ^{[2
]}

Fukuoka, Hirofumi ^{[1
]}

Sasao, Akira ^{[1
]}

Kuratsu, Jun-ichi ^{[3
]}

Yamashita, Yasuyuki ^{[1
]}

机构：

[1] Kumamoto Univ, Grad Sch Med Sci, Dept Diagnost Radiol, Kumamoto 8608556, Japan

[2] Kumamoto Univ, Grad Sch Med Sci, Dept Radiat Oncol, Kumamoto 8608556, Japan

[3] Kumamoto Univ, Grad Sch Med Sci, Dept Neurosurg, Kumamoto 8608556, Japan

来源：

COMPUTERIZED MEDICAL IMAGING AND GRAPHICS | 2008年 / 32卷 / 07期

关键词：

Brain; Lymphoma; Diffusion-weighted imaging; MRI; T2-weighted imaging; ADC;

D O I：

10.1016/j.compmedimag.2008.06.001

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The purpose of this study was to determine whether apparent diffusion coefficient (ADC) value and T2 signal intensity (SI) in primary brain lymphomas affect their SI on diffusion-weighted images (DWI). On DWI of 16 brain lesions of 16 patients, 9 (56.2%) were hyperintense (grade-3), 4 (25%) partially hyperintense (grade-2) and 3 (18.8%) isointense (grade-1). The mean ADC value of grade-3 lesions was significantly lower than of grade-1 lesions (p = 0.028). The grade-1 lesions had ADC values of more than 0.8 and contrast-to-noise ratios of less than 18 on T2-weighted images. Their ADC value and T2 signal intensity affect their SI on DWI. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：539 / 543

页数：5

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