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Research ArticleBrain

CT Density Measurement and H:H Ratio Are Useful in Diagnosing Acute Cerebral Venous Sinus Thrombosis

P.-J. Buyck, F. De Keyzer, D. Vanneste, G. Wilms, V. Thijs and P. Demaerel
American Journal of Neuroradiology August 2013, 34 (8) 1568-1572; DOI: https://doi.org/10.3174/ajnr.A3469
P.-J. Buyck
aFrom the Departments of Radiology (P.-J.B., F.D., G.W., P.D.)
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F. De Keyzer
aFrom the Departments of Radiology (P.-J.B., F.D., G.W., P.D.)
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D. Vanneste
cDepartment of Radiology (D.V.), A.Z. St.-Dimpna, Geel, Belgium
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G. Wilms
aFrom the Departments of Radiology (P.-J.B., F.D., G.W., P.D.)
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V. Thijs
bNeurology (V.T.), University Hospitals Leuven, Leuven, Belgium
dLaboratory of Neurobiology (V.T.), Vesalius Research Center, VIB, Leuven, Belgium
eExperimental Neurology (V.T.)
fDepartment of Neurosciences and Leuven Research Institute for Neurodegenerative Diseases (V.T.), University of Leuven (KU Leuven), Leuven, Belgium.
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P. Demaerel
aFrom the Departments of Radiology (P.-J.B., F.D., G.W., P.D.)
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  • Fig 1.
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    Fig 1.

    Axial brain CT scan in a patient with false-negative results (left sigmoid sinus according to the measurements of 2 readers [mean HU, 55; HCT, 39.6; H:H ratio, 1.39]).

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    Fig 2.

    Axial brain CT scan in a control participant with false-positive results in the transverse sinuses according to the measurements of 1 reader (mean HU, 66.3; HCT 43; H:H ratio, 1.54).

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    Fig 3.

    Axial brain CT scan in a patient with a thrombosis in the superior sagittal sinus (A) and right transverse sinus (B) (mean HU, 76.6; HCT, 40.2; H:H ratio, 1.86).

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    Fig 4.

    The average attenuation values among the 3 readers was significantly different in patients with acute CVST (73.9 ± 9.2 HU) compared with control participants (52.8 ± 6.7 HU) (A). The H:H ratio showed values of 1.33 ± 0.12 in patients without CVST, and 1.91 ± 0.32 in patients with CVST (P < .0001) (B).

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    Fig 5.

    Scatterplot of venous sinus attenuation as a function of HCT showing a significant positive correlation between HCT and attenuation values in patients without acute CVST (R2 = 0.47; P = .0009), but not in patients with CVST (R2 = 0.07; P = .28).

Tables

  • Figures
  • Location of thrombus in 20 patients with acute CVST

    Patient No.Location of Thrombus
    1Left TS
    2SSS, SR, bilateral TS
    3Left TS and SS
    4SSS and SR
    5SSS, left TS
    6SSS, left TS
    7SSS, right TS
    8Right TS and SS
    9Left TS and SS
    10Right TS and SS
    11Left TS and SS
    12Right TS and SS
    13SSS, left TS and SS
    14Left TS and SS
    15SSS, SR, right TS and SS
    16SR, right TS and SS
    17Right TS and SS
    18SSS, bilateral TS and SS
    19SSS, right TS and SS
    20SSS, right TS and SS
    • Note:—SR indicates sinus rectus; SS, sigmoid sinus; SSS, superior sagittal sinus; TS, transverse sinus.

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American Journal of Neuroradiology: 34 (8)
American Journal of Neuroradiology
Vol. 34, Issue 8
1 Aug 2013
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Cite this article
P.-J. Buyck, F. De Keyzer, D. Vanneste, G. Wilms, V. Thijs, P. Demaerel
CT Density Measurement and H:H Ratio Are Useful in Diagnosing Acute Cerebral Venous Sinus Thrombosis
American Journal of Neuroradiology Aug 2013, 34 (8) 1568-1572; DOI: 10.3174/ajnr.A3469

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CT Density Measurement and H:H Ratio Are Useful in Diagnosing Acute Cerebral Venous Sinus Thrombosis
P.-J. Buyck, F. De Keyzer, D. Vanneste, G. Wilms, V. Thijs, P. Demaerel
American Journal of Neuroradiology Aug 2013, 34 (8) 1568-1572; DOI: 10.3174/ajnr.A3469
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  • Diagnostic accuracy of noncontrast CT imaging markers in cerebral venous thrombosis
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    Neuroradiology 2013 55 8
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    Hernan R. Bello, Joseph A. Graves, Saurabh Rohatgi, Mona Vakil, Jennifer McCarty, Rudy L. Van Hemert, Stephen Geppert, Ryan B. Peterson
    RadioGraphics 2019 39 4

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