Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

1 results

  • 2 - Limitations of current brain imaging modalities in stroke

  • Edited by Stephen Davis, Marc Fisher, National Institute of Mental Health, Bethesda, Maryland, Steven Warach, National Institutes of Health, Baltimore
  • Book:
    Magnetic Resonance Imaging in Stroke
    Published online:
    26 August 2009
    Print publication:
    20 March 2003, pp 15-30

  • Summary

    The successful management of stroke patients requires the ability to confirm the diagnosis and determine underlying pathophysiology. Techniques such as computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET) and single photon emission computed tomography (SPECT) provides a window onto the structural and functional changes that occur during stroke. This chapter focuses on the limitations of currently used brain imaging techniques. There has been a widespread belief that conventional MRI is less sensitive than CT in the detection of intracerebral hemorrhage. Ischemic changes may be seen in conventional MR studies within 1 to 2 hours of stroke onset. However, both CT and MRI have low sensitivities for acute ischemia in the hyper acute phase and neither imaging modality is able to identify hypoperfused but potentially salvageable ischemic tissue. SPECT and PET have added significantly to our knowledge of the pathophysiology of stroke.