CEREBRAL SPARGANOSIS - MR-IMAGING VERSUS CT FEATURES
CEREBRAL SPARGANOSIS - MR-IMAGING VERSUS CT FEATURES
复制标题
DOI：
10.1148/radiology.188.3.8351344
复制
发表时间：
1993-09-01
期刊：
影响因子：
19.7
通讯作者：
HAN, MC
中科院分区：
文献类型：
--
作者：
MOON, WK;CHANG, KH;HAN, MC
回顾性分析了11例脑裂头蚴病患者的14个磁共振（MR）图像，并与其中10例患者的13个计算机断层扫描（CT）扫描进行了比较。所有患者均行MR平扫和增强扫描。所有的白色变性，在T1加权像上呈稍低信号，在T2加权像上呈高信号，在CT扫描上被视为低密度区。在MR中看到正常和变性脑组织之间的对比度更好，并且看到两个在CT中遗漏的病变。寄生虫肉芽肿在所有脉冲序列获得的图像上与脑实质等信号。在两个后续的MR图像，增强病变的位置或形状发生变化，提示蠕虫迁移。一个新的发现，高信号T1加权图像和低信号T2加权图像在皮层下的地区可能是由于瘀点的血管被证明在8例仅在MR。小钙化灶，这是重要的诊断线索，脑裂头蚴病，仅在MR检测到4例，而他们在CT上看到8例。
Fourteen magnetic resonance (MR) images of 11 patients with cerebral sparganosis were reviewed retrospectively and compared with 13 computed tomographic (CT) scans of 10 of the patients. All patients underwent both nonenhanced and contrast material-enhanced MR imaging. All white matter degenerations, which were slightly hypointense on T1-weighted images and were hyperintense on T2-weighted images, were seen as areas of low attenuation on CT scans. Better contrast between normal and degenerated brain tissues was seen at MR, and two lesions were seen that were missed at CT. The parasitic granuloma was isointense to brain parenchyma on images obtained with all pulse sequences. On two follow-up MR images, location or shape of the enhancing lesions changed, suggesting migration of the worm. A new finding of hyperintensity on T1-weighted images and hypointensity on T2-weighted images in subcortical areas probably due to petechial hemorrhages was demonstrated in eight patients only at MR. Small calcific foci, which were important diagnostic clues of cerebral sparganosis, were detected in four patients only at MR, while they were seen in eight patients at CT.