Document Detail


Assessment of vascular supply of hypervascular extra-axial brain tumors with 3T MR regional perfusion imaging.
MedLine Citation:
PMID:  19850766     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: The vascular supply of extra-axial brain tumors provided by the external carotid artery has not been studied with RPI. The purpose of this work was to determine whether RPI assessment is feasible and provides information on the vascular supply of hypervascular extra-axial brain tumors. MATERIALS AND METHODS: Conventional ASL and RPI studies were performed at 3T in 8 consecutive patients with meningioma. On the basis of MRA results, we performed RPI by placing a selective labeling slab over the external carotid artery. Five patients underwent DSA before surgery. Two neuroradiologists independently evaluated the overall image quality, the degree of tumor perfusion, and the extent of the tumor vascular territory on conventional ASL and RPI. RESULTS: In overall quality of conventional ASL and RPI, no images interfered with interpretation. In comparisons of the vascular tumor territory identified by the conventional ASL and RPI techniques, the territories coincided in 3 cases, were partially different in 4, and completely different in 1. The interobserver agreement was very good (kappa = 0.82). In 5 patients who underwent DSA, the 4 patients in whom the dominant supply was the external carotid artery were scored as coincided or partially different. The 1 patient in whom the vascular supply was from the internal carotid artery was scored as completely different. CONCLUSIONS: RPI with selective labeling of the external carotid artery is feasible and may provide information about the vascular supply of hypervascular extra-axial brain tumors.
Authors:
A Sasao; T Hirai; S Nishimura; H Fukuoka; R Murakami; M Kitajima; T Okuda; M Akter; M Morioka; S Yano; H Nakamura; K Makino; J-i Kuratsu; K Awai; Y Yamashita
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Publication Detail:
Type:  Clinical Trial; Journal Article     Date:  2009-10-22
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  31     ISSN:  1936-959X     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-16     Completed Date:  2010-06-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  554-8     Citation Subset:  IM    
Affiliation:
Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Angiography, Digital Subtraction
Carotid Artery, External / radiography
Carotid Artery, Internal / radiography
Cavernous Sinus / pathology
Feasibility Studies
Female
Humans
Imaging, Three-Dimensional
Magnetic Resonance Angiography*
Magnetic Resonance Imaging / methods*
Male
Meningeal Neoplasms / blood supply*,  pathology*,  surgery
Meningioma / blood supply*,  pathology*,  surgery
Middle Aged
Preoperative Care

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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