CT perfusion in acute stroke

Know the mimics, potential pitfalls, artifacts, and technical errors

Rajiv Mangla*, Sven Ekhom, Babak S. Jahromi, Jeevak Almast, Manisha Mangla, Per Lennart Westesson

*Corresponding author for this work

Research output: Contribution to journalReview article

17 Citations (Scopus)

Abstract

The CT perfusion (CTP) imaging of brain has been established as a clinically useful tool in multimodality imaging of acute stroke. All abnormalities seen on perfusion CT are not specifically related to acute infarct. There are many neurologic diseases causing symptoms simulating cerebrovascular disease produce an alteration of brain perfusion and thus can result in perfusion CT abnormalities. There are many pitfalls and artifacts in acquiring the data, calculation of maps and choosing arterial input function. We analyze and classify all these aspects, to allow the technician and the radiologist to know exactly what to avoid and what to choose, and we indicate the way to improve the quality of examination. The knowledge of mimics and pitfalls in acute stroke imaging can be helpful in accurate interpretation of these examinations.

Original languageEnglish (US)
Pages (from-to)49-65
Number of pages17
JournalEmergency Radiology
Volume21
Issue number1
DOIs
StatePublished - Feb 1 2014

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Artifacts
Perfusion
Stroke
Cerebrovascular Disorders
Perfusion Imaging
Brain
Nervous System Diseases
Radiologists

Keywords

  • Acute stroke
  • CT perfusion
  • Technical pitfalls

ASJC Scopus subject areas

  • Emergency Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Mangla, Rajiv ; Ekhom, Sven ; Jahromi, Babak S. ; Almast, Jeevak ; Mangla, Manisha ; Westesson, Per Lennart. / CT perfusion in acute stroke : Know the mimics, potential pitfalls, artifacts, and technical errors. In: Emergency Radiology. 2014 ; Vol. 21, No. 1. pp. 49-65.
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CT perfusion in acute stroke : Know the mimics, potential pitfalls, artifacts, and technical errors. / Mangla, Rajiv; Ekhom, Sven; Jahromi, Babak S.; Almast, Jeevak; Mangla, Manisha; Westesson, Per Lennart.

In: Emergency Radiology, Vol. 21, No. 1, 01.02.2014, p. 49-65.

Research output: Contribution to journalReview article

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T2 - Know the mimics, potential pitfalls, artifacts, and technical errors

AU - Mangla, Rajiv

AU - Ekhom, Sven

AU - Jahromi, Babak S.

AU - Almast, Jeevak

AU - Mangla, Manisha

AU - Westesson, Per Lennart

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AB - The CT perfusion (CTP) imaging of brain has been established as a clinically useful tool in multimodality imaging of acute stroke. All abnormalities seen on perfusion CT are not specifically related to acute infarct. There are many neurologic diseases causing symptoms simulating cerebrovascular disease produce an alteration of brain perfusion and thus can result in perfusion CT abnormalities. There are many pitfalls and artifacts in acquiring the data, calculation of maps and choosing arterial input function. We analyze and classify all these aspects, to allow the technician and the radiologist to know exactly what to avoid and what to choose, and we indicate the way to improve the quality of examination. The knowledge of mimics and pitfalls in acute stroke imaging can be helpful in accurate interpretation of these examinations.

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