HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Cerebral MR venography: normal anatomy and potential diagnostic pitfalls.

AbstractBACKGROUND AND PURPOSE:
MR venography is often used to examine the intracranial venous system, particularly in the evaluation of dural sinus thrombosis. The purpose of this study was to evaluate the use of MR venography in the depiction of the normal intracranial venous anatomy and its variants, to assess its potential pitfalls in the diagnosis of dural venous sinus thrombosis, and to compare the findings with those of conventional catheter angiography.
METHODS:
Cerebral MR venograms obtained in 100 persons with normal MR imaging studies were reviewed to determine the presence or absence of the dural sinuses and major intracranial veins.
RESULTS:
Systematic review of the 100 cases revealed transverse sinus flow gaps in 31% of the cases, with 90% of these occurring in the nondominant transverse sinus and 10% in the codominant transverse sinuses. No flow gaps occurred in the dominant transverse sinuses. The superior sagittal and straight sinuses were seen in every venogram; the occipital sinus was seen in only 10%. The vein of Galen and internal cerebral veins were also seen in every case; the basal veins of Rosenthal were present in 91%.
CONCLUSIONS:
Transverse sinus flow gaps can be observed in as many as 31% of patients with normal MR imaging findings; these gaps should not be mistaken for dural sinus thrombosis.
AuthorsR H Ayanzen, C R Bird, P J Keller, F J McCully, M R Theobald, J E Heiserman
JournalAJNR. American journal of neuroradiology (AJNR Am J Neuroradiol) Vol. 21 Issue 1 Pg. 74-8 (Jan 2000) ISSN: 0195-6108 [Print] United States
PMID10669228 (Publication Type: Journal Article)
Topics
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Cerebral Angiography
  • Cerebral Veins (anatomy & histology)
  • Child
  • Child, Preschool
  • Humans
  • Infant
  • Infant, Newborn
  • Magnetic Resonance Angiography
  • Middle Aged
  • Phlebography
  • Prospective Studies

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: