脑肿瘤的超选择性血管造影CT
Superselective angio-CT of brain tumors.
作者信息
Tomura N, Hashimoto M, Sashi R, Hirano H, Kobayashi M, Hirano Y, Satoh K, Watarai J, Kowada M
机构信息
Department of Radiology, Akita University School of Medicine, Akita, Japan.
出版信息
AJNR Am J Neuroradiol. 1996 Jun-Jul;17(6):1073-80.
PURPOSE
To determine the efficacy of superselective angio-CT in the diagnosis of astrocytoma.
METHODS
Nineteen patients with astrocytoma had superselective angio-CT before chemotherapeutic agents were administered via superselective intraarterial infusion. CT was performed after contrast material was delivered through a microcatheter, which had been advanced into the feeding arteries of the tumor. Superselective angio-CT scans were compared with digital subtraction angiograms, conventional contrast-enhanced CT scans, and contrast-enhanced T1-weighted MR images.
RESULTS
Superselective angio-CT scans depicted contrast enhancement of the tumor in all of the patients and the medullary veins of the tumors in 32% of the patients. Digital subtraction angiograms showed tumor stains in 68% of the patients and the medullary veins in only 5%. Conventional CT scans and MR images showed contrast enhancement of the tumor in 89% of the patients. Superselective angio-CT scans confirmed the proper position of the catheter tip for the infusion of a chemotherapeutic agent.
CONCLUSIONS
Superselective angio-CT can be used to depict contrast enhancement of tumors and the vascular structures that are characteristic of astrocytomas.
目的
确定超选择性血管造影CT在星形细胞瘤诊断中的有效性。
方法
19例星形细胞瘤患者在通过超选择性动脉内灌注给予化疗药物之前进行了超选择性血管造影CT检查。在通过已推进到肿瘤供血动脉的微导管注入造影剂后进行CT扫描。将超选择性血管造影CT扫描与数字减影血管造影、传统增强CT扫描和增强T1加权磁共振图像进行比较。
结果
超选择性血管造影CT扫描显示所有患者肿瘤均有强化，32%的患者肿瘤髓静脉有强化。数字减影血管造影显示68%的患者有肿瘤染色，仅5%的患者有髓静脉显示。传统CT扫描和磁共振图像显示89%的患者肿瘤有强化。超选择性血管造影CT扫描确定了化疗药物输注时导管尖端的正确位置。
结论
超选择性血管造影CT可用于显示肿瘤强化及星形细胞瘤特有的血管结构。
Zotero 插件