INTRAVOXEL INCOHERENT MOTION (IVIM) MRI IN INTRACRANIAL, EXTRAAXIAL TUMORS AND CYSTS

被引：49

作者：

MAEDA, M ^{[1
]}

KAWAMURA, Y ^{[1
]}

TAMAGAWA, Y ^{[1
]}

MATSUDA, T ^{[1
]}

ITOH, S ^{[1
]}

KIMURA, H ^{[1
]}

IWASAKI, T ^{[1
]}

HAYASHI, N ^{[1
]}

YAMAMOTO, K ^{[1
]}

ISHII, Y ^{[1
]}

机构：

[1] FUKUI UNIV,FAC ENGN,FUKUI 910,JAPAN

来源：

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY | 1992年 / 16卷 / 04期

关键词：

BRAIN; NEOPLASMS; DIFFUSION; CYSTS; MAGNETIC RESONANCE IMAGING;

D O I：

10.1097/00004728-199207000-00003

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：

Intravoxel incoherent motion MRI was used to assess six intracranial, extraaxial cysts and tumors including two epidermoids, two cystic acoustic schwannomas, and two arachnoid cysts. A maximum gradient strength of 0.7 g/cm was used simultaneously along all axes (maximum gradient b value: 445 s/mm2) and comparisons were made with an external water phantom. In epidermoid tumors the apparent diffusion coefficient (ADC) was similar to that of normal brain, thus indicating their solid nature. In acoustic schwannomas an ADC similar to the external water phantom indicated cystic components, whereas an ADC similar to brain was found in the solid portions of the tumor. The ADC of arachnoid cysts was similar to that of the water phantom, indicating their fluid nature. Due to macroscopic CSF flow, cisternal CSF showed high ADC, which enabled epidermoid tumors to be highlighted.

引用

页码：514 / 518

页数：5

共 10 条

[1] CEREBELLOPONTINE ANGLE-PETROMASTOID MASS LESIONS - COMPARATIVE-STUDY OF DIAGNOSIS WITH MR IMAGING AND CT [J].