臨床神経学

第48回日本神経学会総会

<シンポジウム8-1>最新の脳卒中治療
頭部CT・MRI:最近の進歩

佐々木 真理

岩手医科大学放射線科〔〒020-8505 盛岡市内丸19-1〕

The advents of multidetector-row CT and high-field MRI have accelerated the technical advancement of the stroke CT and MRI. A novel technique combining volume helical scan and three-dimensional denoising filter can improve conspicuity of the early CT signs by increasing the signal-to-noise ratio and reducing bone-related artifacts. High-filed MRI allows us to use new techniques, such as the susceptibility-weighted imaging, myelin-density imaging, volume diffusion imaging, and neuromelanin imaging. Standardization techniques for the stroke CT and MRI introduced by ASIST-Japan can reduce inter-institutional and intervendor differences, and helps in facilitating multicenter trials concerning acute stroke management.

(臨床神経, 47:919−920, 2007)
key words:マルチスライスCT, 超高磁場MRI, 磁化率強調画像, CT/MR灌流画像, 標準化

(受付日:2007年5月16日)