Perfusion CT of the brain using 40-mm-wide detector and toggling table technique for initial imaging of acute stroke

AJR. American Journal of Roentgenology
Sung Won YounHee-Joon Bae

Abstract

Limited coverage of the brain in the z-axis has been a drawback of perfusion CT. The purpose of this study was to evaluate the usefulness of perfusion CT with extended coverage in the z-axis for the assessment of acute stroke in an emergent clinical setting. Fifty-eight patients who underwent 80-mm-coverage perfusion CT within 24 hours after stroke onset were included. Perfusion CT was performed using a 64-MDCT unit equipped with 40-mm-wide detector and the toggling table technique. Lesion detection by perfusion CT was analyzed using follow-up diffusion-weighted imaging and MR angiography as the reference standards. More conventional 20-mm-coverage perfusion CT was simulated by extracting data obtained at the basal ganglia level for comparison with 80-mm-coverage perfusion CT. Fifty-one patients had acute infarctions and seven patients did not. For 80-mm-coverage perfusion CT, perfusion abnormality was detected in 42 of 51 patients (sensitivity, 82.4%; and specificity, 85.7%). When patients with small artery disease (small acute infarctions in the basal ganglia, thalamus, corona radiata, and pons) were excluded, sensitivity increased to 92.3%. As compared with 80-mm-coverage perfusion CT, 20-mm-coverage perfusion CT missed nine...Continue Reading

References

Dec 14, 1995·The New England Journal of Medicine·UNKNOWN National Institute of Neurological Disorders and Stroke rt-PA Stroke Study Group
Oct 3, 1999·Journal of Magnetic Resonance Imaging : JMRI·T UedaT Taoka
Oct 16, 1999·Journal of Neurology, Neurosurgery, and Psychiatry·J M WardlawP A Sandercock
Nov 3, 2001·Stroke; a Journal of Cerebral Circulation·M M KilpatrickM B Fukui
Nov 13, 2004·Journal of Computer Assisted Tomography·Sotirios BisdasHartmut Becker
Apr 14, 2007·Annals of Neurology·Jessica C TanMax Wintermark

❮ Previous
Next ❯

Citations

May 29, 2010·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Eberhard SiebertRandolf Klingebiel
May 25, 2012·The British Journal of Radiology·J P B O'ConnorA Jackson
Nov 6, 2012·AJNR. American Journal of Neuroradiology·A KoculymR I Aviv
Oct 29, 2010·Journal of Vascular and Interventional Radiology : JVIR·Lin YangGuo Li Dong
Oct 12, 2010·European Journal of Radiology·Shigeru SuzukiDhruv Mehta
Sep 17, 2015·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Lorenz BreuerTobias Engelhorn
Nov 26, 2009·Annals of Neurology·David S Liebeskind
Mar 23, 2015·European Journal of Radiology·Timothy Pok Chi YeungTing-Yim Lee
Oct 31, 2014·AJNR. American Journal of Neuroradiology·H G J KortmanF J A Meijer
Jan 13, 2015·AJNR. American Journal of Neuroradiology·P KrishnanR Aviv
May 29, 2009·Medical Physics·H A F Gratama van AndelG J Streekstra
May 19, 2017·Topics in Magnetic Resonance Imaging : TMRI·Pradeep KrishnanRichard I Aviv
Jan 17, 2012·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Young Wook JeonUNKNOWN Brain Research Group
Jun 12, 2019·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·M N KalininM M Ibatullin
Feb 27, 2021·Metabolic Brain Disease·Huixin SunChaohui Duan

❮ Previous
Next ❯

Related Concepts

Related Feeds

Basal Ganglia Cerebrovascular Disease

Basal ganglia cerebrovascular disease is a condition where the blood vessels in the basal ganglia are damaged or malfunction. Discover the latest research on basal ganglia cerebrovascular disease here.

Acute Stroke

A stroke occurs when blood supply to the brain is interrupted depriving the brain of oxygen and nutrients. This feed focuses cerebrovascular accidents including ischemic and paralytic stroke.

Basal Ganglia

Basal Ganglia are a group of subcortical nuclei in the brain associated with control of voluntary motor movements, procedural and habit learning, emotion, and cognition. Here is the latest research.

Brain Ischemia

Brain ischemia is a condition in which there is insufficient blood flow to the brain to meet metabolic demand. Discover the latest research on brain ischemia here.