动静脉畸形患者中通过扩散张量纤维束成像显示的皮质脊髓束
Corticospinal tracts by diffusion tensor tractography in patients with arteriovenous malformations.
作者信息
Itoh Daisuke, Aoki Shigeki, Maruyama Keisuke, Masutani Yoshitaka, Mori Harushi, Masumoto Tomohiko, Abe Osamu, Hayashi Naoto, Okubo Toshiyuki, Ohtomo Kuni
机构信息
Department of Radiology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
出版信息
J Comput Assist Tomogr. 2006 Jul-Aug;30(4):618-23. doi: 10.1097/00004728-200607000-00011.
OBJECTIVE
To visualize the corticospinal tract (CST) in patients with arteriovenous malformations (AVMs) by using diffusion tensor tractography (DTT) and to confirm the clinical reliability of DTT in patients with AVMs.
METHODS
We performed DTT in 24 patients who had their AVMs near the CST. Tracts and AVMs were shown simultaneously, providing information on their spatial relationships. We also counted numbers of voxels in the DTT-CST at the level of the AVM.
RESULTS
DTT was visualized in 23 patients. In all 9 patients with hemiparesis, their DTT-CSTs were involved in the AVM or its surrounding lesion. Their volume of DTT-CST at the affected side was significantly decreased when compared with the contralateral side (P = 0.0469). All 14 patients whose DTT-CSTs were free from lesion had no hemiparesis.
CONCLUSIONS
DTT was safe and clinically applicable in patients with AVMs. DTT is recommended when an AVM is located near the corticospinal tract.
目的
通过使用弥散张量纤维束成像（DTT）来可视化患有动静脉畸形（AVM）患者的皮质脊髓束（CST），并证实DTT在AVM患者中的临床可靠性。
方法
我们对24例AVM位于CST附近的患者进行了DTT检查。同时显示纤维束和AVM，提供它们空间关系的信息。我们还在AVM水平计数了DTT-CST中的体素数量。
结果
23例患者成功进行了DTT检查。在所有9例偏瘫患者中，其DTT-CST均累及AVM或其周围病变。患侧DTT-CST的体积与对侧相比明显减小（P = 0.0469）。所有14例DTT-CST未受累的患者均无偏瘫。
结论
DTT对AVM患者是安全且临床适用的。当AVM位于皮质脊髓束附近时，推荐使用DTT。
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