title: A quantitative study of magnetic susceptibility-weighted imaging of deep cerebral veins.
abstract: OBJECTIVE
  To evaluate the value of magnetic susceptibility-weighted imaging (SWI) for measuring deep cerebral venous diameter.
  
  
  METHODS
  The diameters of 150 deep cerebral veins were measured by SWI and digital subtraction angiography (DSA) in 50 patients.
  
  
  RESULTS
  SWI showed whole cerebral veins as clear soft vessels, but with a crooked hypointense linear structure along the sulcus. Venous vessel diameter as measured by SWI was greater than that by DSA, but values from the two different techniques showed significant linear correlation (r=0.905).
  
  
  CONCLUSIONS
  SWI is reliable and suitable for quantitative measurements of deep cerebral veins, and more sensitive for measuring smaller vessels deep within the brain.
authors.affiliation: Department of Radiology, Second Xiangya Hospital, Central South University, 139, Renmin Road, 410011 Changsha, PR China; Department of Radiology, the Tumor Hospital of Hunan Province, 410013 Changsha, PR China.
authors.forename: Xi-bin
authors.initials: XB
authors.lastname: Xia
authors.forename: Chang-lian
authors.initials: CL
authors.lastname: Tan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000465:Algorithms; D002550:Cerebral Veins / Q000473:pathology*; D002561:Cerebrovascular Disorders / Q000473:pathology*; D002648:Child; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055815:Young Adult
keywords: Deep cerebral veins; Digital subtraction angiography; Magnetic resonance imaging; Magnetic susceptibility-weighted imaging; Measurement