Document Detail

Preoperative evaluation of venous systems with 3-dimensional contrast-enhanced magnetic resonance venography in brain tumors: comparison with time-of-flight magnetic resonance venography and digital subtraction angiography.
MedLine Citation:
PMID:  16051003     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Recent developments in magnetic resonance (MR) technology now enable the use of MR venography, providing 3-dimensional (3D) images of intracranial venous structures. The purpose of this study was to assess the usefulness of 3D contrast-enhanced MR venography (CE MRV) in the evaluation of intracranial venous system for surgical planning of brain tumors. METHODS: Forty patients underwent 3D CE MRV, as well as 25 patients, 2-dimensional (2D) time-of-flight (TOF) MR venography in axial and sagittal planes; and 10 patients, digital subtraction angiography. We determined the number of visualized sinuses and cortical veins. Degree of visualization of the intracranial venous system on 3D CE MRV was compared with that of 2D TOF MR venography and digital subtraction angiography as a standard. We also assessed the value of 3D CE MRV in the investigation of sinus occlusion or localization of cortical draining veins preoperatively. RESULTS: Superficial cortical veins and the dural sinus were better visualized on 3D CE MRV than on 2D TOF MR venography. Both MR venographic techniques visualized superior sagittal sinus, lateral sinus, sigmoid sinus, straight sinus, and internal cerebral vein and provided more detailed information by showing obstructed sinuses in brain tumors. Only 3D CE MRV showed superficial cortical draining veins. However, it was difficult to accurately evaluate the presence of cortical collateral venous drainage. CONCLUSION: Although we do not yet advocate MR venography to replace conventional angiography as the imaging standard for brain tumors, 3D CE MRV can be regarded as a valuable diagnostic method just in evaluating the status of major sinuses and localization of the cortical draining veins.
Jong-Myung Lee; Shin Jung; Kyung-Sub Moon; Jeong-Jin Seo; In-Young Kim; Tae-Young Jung; Jung-Kil Lee; Sam-Suk Kang
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  Surgical neurology     Volume:  64     ISSN:  0090-3019     ISO Abbreviation:  Surg Neurol     Publication Date:  2005 Aug 
Date Detail:
Created Date:  2005-07-29     Completed Date:  2005-08-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0367070     Medline TA:  Surg Neurol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  128-33; discussion 133-4     Citation Subset:  IM    
Department of Neurosurgery, Research Institute of Medical Sciences, Chonnam National University, Chonnam National University Hospital and Medical School, Gwangju, South Korea.
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MeSH Terms
Angiography, Digital Subtraction
Brain / blood supply*
Brain Neoplasms / blood supply*,  surgery*
Cranial Sinuses / pathology,  radiography
Imaging, Three-Dimensional
Magnetic Resonance Imaging*
Middle Aged
Patient Care Planning
Phlebography / methods
Preoperative Care
Sensitivity and Specificity

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

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