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Updated: Jul 16, 2026

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
MR regional perfusion imaging: visualizing functional collateral circulation
C C T Lim1, E T Petersen, I Ng
1Department of Neuroradiology, National Neuroscience Institute, Singapore. tchoyoson_lim@nni.com.sg
Summary:
We applied regional perfusion imaging (RPI), a new arterial spin-labeling MR imaging method that selectively studies regions of the brain perfused by individual carotid and basilar arteries. In a patient with cerebrovascular disease, RPI showed cerebral tissue perfused by pial collateral vessels, thereby demonstrating the relationship between anatomic and functional information, which was lacking in conventional x-ray angiography. RPI may be useful to study functional collateral circulation and hence guide therapy in ischemic disease.
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