Luxury perfusion is a term originally used to describe the dilation of numerous vascular channels observed within the relatively avascular infarcted area of the brain 24–48 h after an ischemic stroke. At surgery, the infarcted area thus appears to contain an increase in the number of blood vessels. These are not actually functioning to supply the infarcted brain, however, so do not represent true “perfusion.”
On a contrasted CT scan, this phenomenon is perceived as an area of enhancement (increased density or whiteness) at the margin of the infarct. This is visible 1 day to several days after a stroke.
With the development of metabolic studies and PET scanning, the term was equated with low oxygen extraction ratio. SPECT scanning suggests that spontaneous reperfusion after cerebral infarction occurs often but is rarely associated with clinical improvement.
Luxury perfusion has been shown via SPECT in cases of successful thrombolysis after ischemic cerebrovascular accident.
References and Readings
- Mettler, F. A. (2005). Mettler: Essentials of radiology (2nd ed.). Philadelphia: Saunders.Google Scholar