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Hypointense thrombus on T2-weighted MR imaging: a potential pitfall in the diagnosis of dural sinus thrombosis.

Publication ,  Journal Article
Hinman, JM; Provenzale, JM
Published in: Eur J Radiol
February 2002

PURPOSE: To determine the frequency of hypointense appearance of dural sinus thrombosis on T2-weighted images, which may mimic a normal flow void, and when possible correlate with appearance on T1-weighted images. METHODS AND MATERIALS: Retrospective review of radiology files showed 51 patients with a discharge diagnosis of dural sinus thrombosis who underwent MR imaging during the period 1986-1998. These images were reviewed by an experienced neuroradiologist for appearance on T2-weighted images. This process yielded five cases in which a hypointense appearance on this pulse sequence simulated a normal flow void. An additional two cases were added from the teaching files of two other institutions giving a total of seven cases (13% of studies). The resulting study population consisted of five women and two men (mean age 27.1 years). T1 weighted images were available in five patients. In two patients MR venography was available, but not T1-weighted images. The diagnosis of dural sinus thrombosis was based solely on absence of flow void on T1-weighted images in one case, solely on absence of flow void on MR venography in two cases and absence of flow void on T1-weighted images in conjunction with MR venography or gradient echo findings in 4 patients. All images were obtained on a 1.5 T magnet (GE Medical Systems; Milwaukee, Wisconsin). RESULTS: In all patients hypointense signal of thrombus was isointense with normal flow voids in other dural sinuses on T2-weighted images. In all cases in which T1-weighted images were available, the signal intensity of thrombus was isointense to gray matter. CONCLUSION: Hypointense appearance of thrombus on T2-weighted images is a potential pitfall in the MR diagnosis of dural sinus thrombosis. Because thrombus in this stage of evolution appears isointense to gray matter on T1-weighted images, careful attention must be paid to other sequences to avoid this pitfall.

Duke Scholars

Published In

Eur J Radiol

DOI

ISSN

0720-048X

Publication Date

February 2002

Volume

41

Issue

2

Start / End Page

147 / 152

Location

Ireland

Related Subject Headings

  • Sinus Thrombosis, Intracranial
  • Retrospective Studies
  • Nuclear Medicine & Medical Imaging
  • Male
  • Magnetic Resonance Imaging
  • Infant
  • Humans
  • Headache
  • Female
  • Diagnosis, Differential
 

Citation

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Chicago
ICMJE
MLA
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Hinman, J. M., & Provenzale, J. M. (2002). Hypointense thrombus on T2-weighted MR imaging: a potential pitfall in the diagnosis of dural sinus thrombosis. Eur J Radiol, 41(2), 147–152. https://doi.org/10.1016/s0720-048x(01)00365-5
Hinman, Jeffrey M., and James M. Provenzale. “Hypointense thrombus on T2-weighted MR imaging: a potential pitfall in the diagnosis of dural sinus thrombosis.Eur J Radiol 41, no. 2 (February 2002): 147–52. https://doi.org/10.1016/s0720-048x(01)00365-5.
Hinman, Jeffrey M., and James M. Provenzale. “Hypointense thrombus on T2-weighted MR imaging: a potential pitfall in the diagnosis of dural sinus thrombosis.Eur J Radiol, vol. 41, no. 2, Feb. 2002, pp. 147–52. Pubmed, doi:10.1016/s0720-048x(01)00365-5.
Journal cover image

Published In

Eur J Radiol

DOI

ISSN

0720-048X

Publication Date

February 2002

Volume

41

Issue

2

Start / End Page

147 / 152

Location

Ireland

Related Subject Headings

  • Sinus Thrombosis, Intracranial
  • Retrospective Studies
  • Nuclear Medicine & Medical Imaging
  • Male
  • Magnetic Resonance Imaging
  • Infant
  • Humans
  • Headache
  • Female
  • Diagnosis, Differential