CT arteriography for orbital tumors: Diagnostic and surgical value
CT arteriography for orbital tumors: Diagnostic and surgical value
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DOI：
10.1016/j.jocn.2004.08.012
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发表时间：
2005-06-01
影响因子：
2
通讯作者：
Matsui, O
中科院分区：
文献类型：
--
作者：
Hasegawa, M;Fujisawa, H;Matsui, O
本研究旨在探讨动态计算机断层扫描(CT)在眼眶肿瘤选择性血管造影术(CT动脉造影术)中对肿瘤内血管解剖、供血动脉范围及组织学诊断的价值。在35例各种眼眶病变中，14例在数字减影血管造影术(DSA)上显示肿瘤染色或造影剂混积。将CT动脉造影所获得的信息与增强MRI(n=31)和动态MRI(n=21)所提供的信息进行比较。除了显示精细的血管解剖结构外，CT动脉造影还强调结节状强化和无强化的囊性/坏死区以及瘤内供血动脉。CT动脉造影可分为三种类型：均匀强化(良性淋巴样病变)、部分强化(神经鞘瘤和癌)和斑片状多结节强化(海绵状血管瘤)。此外，选择性动脉插管的CT动脉造影术清楚地描绘了供血动脉的范围。CT动脉造影术使用最小剂量的造影剂，与静脉注射的动态神经成像相比具有显著的优势，并提供了有关眼眶肿瘤的更多有价值的术前信息。(C)2005爱思唯尔有限公司。保留所有权利。
The aim of this study is to investigate the efficacy of dynamic computed tomography (CT) during selective angiography (CT-arteriography) of orbital tumors in the evaluation of intratumoral vascular anatomy, feeding artery territory, and histological diagnosis. Among 35 consecutive cases with various orbital lesions, those cases showing tumor staining or pooling of the contrast medium on digital subtraction angiography (DSA) were evaluated by CT-arteriography (n = 14). The information obtained by CT-arteriography was compared with that provided by enhanced MRI (n = 31) and dynamic MRI (n = 21), in which the contrast medium was injected intravenously. In addition to the visualization of fine vascular anatomy, CT-arteriography emphasized areas of nodular enhancement and non-enhancing cystic/necrotic components as well as the intraturnoral feeding arteries. Patterns of CT-arteriography were categorized into three subgroups: homogeneous enhancement (benign lymphoid lesion), partial enhancement (schwannomas and carcinomas), and patchy multinodular enhancement (specific for cavernous angiomas). In addition, CT-arteriography with selective arterial catheterization clearly delineated the feeding artery territories. CT-arteriography, with a minimal dose of contrast medium, can offer significant advantages over intravenously injected dynamic neuroimaging, and provides additional valuable preoperative information about the orbital tumor under investigation. (c) 2005 Elsevier Ltd. All rights reserved.