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Hyperperfusion on perfusion computed tomography following revascularization for acute stroke.

Publication ,  Journal Article
Nguyen, TB; Lum, C; Eastwood, JD; Stys, PK; Hogan, M; Goyal, M
Published in: Acta Radiol
October 2005

PURPOSE: To describe the findings of hyperperfusion on perfusion computed tomography (CT) in four patients following revascularization for acute stroke. MATERIAL AND METHODS: In 2002-2003, among a series of 6 patients presenting with an acute stroke and treated with intra-arterial thrombolysis, we observed the presence of hyperperfusion in 3 patients on the follow-up CT perfusion. We included an additional patient who was treated with intravenous thrombolysis and who had hyperperfusion on the follow-up CT perfusion. We retrospectively analyzed their CT perfusion maps. Cerebral blood volume (CBV) and cerebral blood flow (CBF) maps were compared between the affected territory and the normal contralateral hemisphere. RESULTS: In the four patients, the mean CBV and CBF were 3.6 +/- 2.0 ml/100 g and 39 +/- 25 ml/100 g/min in the affected territory compared to the normal side (mean CBV = 2.7 +/- 2.1 ml/100 g, mean CBF = 27 +/- 23 ml/100 g/min). There was no intracranial hemorrhage in the hyperperfused territories. At follow-up CT, some hyperperfused brain areas progressed to infarction, while others retained normal white to gray matter differentiation. CONCLUSION: CT perfusion can demonstrate hyperperfusion, which can be seen in an ischemic brain territory following recanalization.

Duke Scholars

Published In

Acta Radiol

DOI

ISSN

0284-1851

Publication Date

October 2005

Volume

46

Issue

6

Start / End Page

610 / 615

Location

England

Related Subject Headings

  • Tomography, X-Ray Computed
  • Thrombolytic Therapy
  • Stroke
  • Retrospective Studies
  • Reperfusion
  • Nuclear Medicine & Medical Imaging
  • Middle Aged
  • Male
  • Image Processing, Computer-Assisted
  • Humans
 

Citation

APA
Chicago
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MLA
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Nguyen, T. B., Lum, C., Eastwood, J. D., Stys, P. K., Hogan, M., & Goyal, M. (2005). Hyperperfusion on perfusion computed tomography following revascularization for acute stroke. Acta Radiol, 46(6), 610–615. https://doi.org/10.1080/02841850510021607
Nguyen, T. B., C. Lum, J. D. Eastwood, P. K. Stys, M. Hogan, and M. Goyal. “Hyperperfusion on perfusion computed tomography following revascularization for acute stroke.Acta Radiol 46, no. 6 (October 2005): 610–15. https://doi.org/10.1080/02841850510021607.
Nguyen TB, Lum C, Eastwood JD, Stys PK, Hogan M, Goyal M. Hyperperfusion on perfusion computed tomography following revascularization for acute stroke. Acta Radiol. 2005 Oct;46(6):610–5.
Nguyen, T. B., et al. “Hyperperfusion on perfusion computed tomography following revascularization for acute stroke.Acta Radiol, vol. 46, no. 6, Oct. 2005, pp. 610–15. Pubmed, doi:10.1080/02841850510021607.
Nguyen TB, Lum C, Eastwood JD, Stys PK, Hogan M, Goyal M. Hyperperfusion on perfusion computed tomography following revascularization for acute stroke. Acta Radiol. 2005 Oct;46(6):610–615.
Journal cover image

Published In

Acta Radiol

DOI

ISSN

0284-1851

Publication Date

October 2005

Volume

46

Issue

6

Start / End Page

610 / 615

Location

England

Related Subject Headings

  • Tomography, X-Ray Computed
  • Thrombolytic Therapy
  • Stroke
  • Retrospective Studies
  • Reperfusion
  • Nuclear Medicine & Medical Imaging
  • Middle Aged
  • Male
  • Image Processing, Computer-Assisted
  • Humans