三维旋转数字减影血管造影术可能低估颅内动脉瘤：两个基底动脉瘤的研究结果
3D rotational digital subtraction angiography may underestimate intracranial aneurysms: findings from two basilar aneurysms.
作者信息
Jou L-D, Mohamed A, Lee D H, Mawad M E
机构信息
Department of Radiology, Baylor College of Medicine, Houston, TX 77030, USA.
出版信息
AJNR Am J Neuroradiol. 2007 Oct;28(9):1690-2. doi: 10.3174/ajnr.A0652. Epub 2007 Sep 24.
Abstract
3D digital subtraction angiography (DSA) allows clinicians to review intracranial aneurysms and other vascular lesions. We report 2 basilar aneurysms that were imaged by both 3D DSA and DynaCT. These 2 techniques produced very different aneurysm appearances. Anterior portions of the aneurysms were invisible on 3D DSA but were revealed by DynaCT. These aneurysms appeared to have been flattened by image artifacts in 3D DSA. Pulsation and gravity are 2 possible causes of aneurysm underestimation.
摘要
3D数字减影血管造影（DSA）使临床医生能够查看颅内动脉瘤和其他血管病变。我们报告了2例经3D DSA和DynaCT成像的基底动脉瘤。这两种技术产生的动脉瘤外观差异很大。动脉瘤的前部在3D DSA上不可见，但在DynaCT上显示出来。这些动脉瘤在3D DSA中似乎因图像伪影而变平。搏动和重力是动脉瘤低估的两个可能原因。
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