Multiple brain abscesses - Differentiation from cerebral metastases by diffusion-weighted magnetic resonance imaging

被引：0

作者：

Tsuchiya, K

Yamakami, N

Hachiya, J

Saito, I

Kobayashi, H

机构：

[1] Kyorin Univ, Sch Med, Dept Neurosurg, Tokyo 1818611, Japan

[2] Kyorin Univ, Sch Med, Dept Internal Med 1, Tokyo 1818611, Japan

[3] Kyorin Univ, Sch Med, Dept Radiol, Tokyo 1818611, Japan

来源：

INTERNATIONAL JOURNAL OF NEURORADIOLOGY | 1998年 / 4卷 / 04期

关键词：

abscess; brain; metastasis; brain tumors; magnetic resonance imaging; diffusion-weighted imaging; infection;

D O I：

暂无

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Purpose: To report successful differentiation between multiple brain abscesses and brain metastases based on diffusion-weighted magnetic resonance imaging (MRI). Methods: Two patients with multiple brain abscesses and three patients with cystic or necrotic brain metastases were examined by echo-planar diffusion-weighted MRI in addition to conventional MRI sequences. Results: The abscess cavities of all 28 lesions in both patients showed marked hyperintensity on diffusion-weighted MRI. The apparent diffusion coefficient (ADC) maps demonstrated decreased ADC within the cavities. A total of nine cystic or necrotic metastases showed hypointensity or isointensity on diffusion-weighted MRI. Conclusion: Diffusion-weighted MRI facilitates the differentiation of multiple brain abscesses from multiple cystic or necrotic br ain metastases that show similar ring-like enhancement on routine MRI.

引用

页码：258 / 262

页数：5

共 15 条

[1]

BRUNBERG JA, 1995, AM J NEURORADIOL, V16, P361

[2]

CHIEN D, 1992, AM J NEURORADIOL, V13, P1097

[3] Discrimination of brain abscess from necrotic or cystic tumors by diffusion-weighted echo planar imaging [J].