No reflow phenomenon is the failure of blood to reperfuse an ischemic area after the physical obstruction has been removed or bypassed.
No reflow zones are identified on late-enhancement images as a dark core surrounded by an enhancing rim.
This finding indicates the presence of damaged microvasculature in the core of an area of infarction
The presence of a 'no reflow' zone is associated with worse functional outcome, larger infarcts and adverse clinical outcome [8,9].
Both acute and chronic infarctions demonstrate delayed-enhancement, but an acute infarction can often be distinguished by the presence of a 'no reflow' zone and high signal on T2 weighted images.
No reflow zones are identified on late-enhancement images as a dark core surrounded by an enhancing rim.
This finding indicates the presence of damaged microvasculature in the core of an area of infarction
The presence of a 'no reflow' zone is associated with worse functional outcome, larger infarcts and adverse clinical outcome [8,9].
Both acute and chronic infarctions demonstrate delayed-enhancement, but an acute infarction can often be distinguished by the presence of a 'no reflow' zone and high signal on T2 weighted images.
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| Left: no-reflow phenomenon Right: four months later there is transmural enhancement indicating a transmural infarction |
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