CT perfusion expands stroke care options

January 22, 2008 Diagnostic Imaging. CT perfusion expands stroke care options H. A. Abella -------------------------------------------------------------------------------- New CT perfusion scanning techniques that are safer and faster than older CT protocols could offer a practical imaging alternative to MR perfusion for stroke patients, according to two studies presented at the 2007 RSNA meeting. Findings also emphasize a new trend for widening the window for thrombolysis. A number of clinical trials are trying to extend the window for management of acute stroke with clot-busting tPA beyond the three-hour accepted standard. MR is the imaging modality of choice for enrolling patients in these studies. But CT has recently proven to be just as reliable and may be more practical, according to Dr. Pamela Schaefer, associate director of neuroradiology at Massachusetts General Hospital.

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