Spatial Restriction within Intracranial Epidermoid Cysts Observed Using Short Diffusion-time Diffusion-weighted Imaging.
Spatial Restriction within Intracranial Epidermoid Cysts Observed Using Short Diffusion-time Diffusion-weighted Imaging.
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DOI:
10.2463/mrms.cr.2017-0111
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发表时间:
2018-07-10
期刊:
影响因子:
--
通讯作者:
Aoki S
中科院分区:
文献类型:
--
作者:
Andica C;Hori M;Kamiya K;Koshino S;Hagiwara A;Kamagata K;Fukunaga I;Hamasaki N;Suzuki M;Feiweier T;Murata K;Arakawa A;Kondo A;Akiyama O;Aoki S
We report two cases of pathologically proven intracranial epidermoid cysts. Both cases were scanned with diffusion-weighted imaging using pulsed gradient spin-echo (PGSE) and oscillating gradient spin-echo (OGSE; 50 Hz) prototype sequences with diffusion times of 47.3 ms and 8.5 ms, respectively. The apparent diffusion coefficient measured by OGSE was higher than that measured by PGSE, indicating the spatial restriction of water diffusion in the laminated keratin layers within the cyst as demonstrated by histopathology.
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