不同MRI序列对各期脑实质型囊虫病检出价值的研究

The application value of magnetic resonance imaging in different stages of neurocysticercosis

目的:探讨不同MRI序列对各期脑实质型脑囊虫病的显示优势。方法:搜集209例不同病理时期的脑实质型脑囊虫病患者的临床及影像资料,分别统计并比较快速小角度激发反转恢复(FLAIR)T_1WI(T_1-FLAIR)、快速自旋回波(FSE)T_2WI(T_2-FSE)、T_2-FLAIR、自旋回波(SE)T_1WI(T_1-SE)增强扫描及DWI对脑囊虫病不同病灶的检出率。结果:脑实质型脑囊虫病的各病灶中,囊泡在T_2-FSE上检出率(96.05%)最高;头节在T_2-FLAIR(97.01%)上检出率最高;灶周水肿在T_2-FLAIR上检出率(98.02%)最高;肉芽肿在T_1-SE增强扫描上检出率(95.10%)最高;钙化在T_2-FSE上检出率(69.92%)最高。结论:各期脑实质型囊虫病变在MRI不同序列图像上各有其显示优势。

Objective：To investigate the application value of magnetic resonance imaging（MRI）in detecting the different stages of neurocysticercosis.Methods：The clinical and MRI data of 209 patients with neurocysticercosis were collected,and the lesion detection rate with various MR sequences including FLAIR-T_1 WI,FSE-T_2 WI,FLAIR-T_2 WI,DWI and contrast-enhanced scan was analyzed.Results：The highest detection rate of different neurocysticercosis lesions was found in different MR sequences：detection rate of vesicular lesion was 96.05% on FSE T_2 WI,detection rate of cephalomere was97.01% on FLAIR T_2 WI,detection rate of edema was 98.02% on FLAIR T_2 WI,detection rate of granuloma was 95.10%on contrast enhanced image,and detection rate of calcification was 69.92% on FSE T_2 WI.Conclusion：Different MR sequences showed varied advantages in detection of different stages of neurocysticercosis.