Published online Feb 28, 2015. doi: 10.4329/wjr.v7.i2.45
Peer-review started: October 29, 2014
First decision: December 12, 2014
Revised: December 25, 2014
Accepted: January 15, 2015
Article in press: January 19, 2015
Published online: February 28, 2015
Core tip: Hyperperfusion syndrome is a relatively rare, but potentially serious, complication of carotid revascularization procedures. It is important to detect the excessive increase blood flow after treatment as soon as possible. We found that, although the observed blood flow increase in the digital subtraction angiography system did not strongly correlate with the rate of increase of single-photon emission computed tomography before and after carotid artery stenting, the digital subtraction angiography flow assessment application more finely reflected the rate of change of the vessels well.