CT arteriography for orbital tumors: Diagnostic and surgical value

Mitsuhiro Hasegawa, Hironori Fujisawa, Yutaka Hayashi, Junkoh Yamashita, Masayuki Suzuki, Osamu Matsui

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

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 intratumoral 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.

Original languageEnglish
Pages (from-to)548-552
Number of pages5
JournalJournal of Clinical Neuroscience
Volume12
Issue number5
DOIs
Publication statusPublished - 06-2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Surgery
  • Neurology
  • Clinical Neurology
  • Physiology (medical)

Fingerprint Dive into the research topics of 'CT arteriography for orbital tumors: Diagnostic and surgical value'. Together they form a unique fingerprint.

Cite this