MR regional perfusion imaging: Visualizing functional collateral circulation

C. C T Lim, E. T. Petersen, I. Ng, P. Y K Hwang, F. Hui, X. Golay

Research output: Contribution to journalArticle


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.

Original languageEnglish (US)
Pages (from-to)447-448
Number of pages2
JournalAmerican Journal of Neuroradiology
Issue number3
StatePublished - Mar 2007
Externally publishedYes


ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Lim, C. C. T., Petersen, E. T., Ng, I., Hwang, P. Y. K., Hui, F., & Golay, X. (2007). MR regional perfusion imaging: Visualizing functional collateral circulation. American Journal of Neuroradiology, 28(3), 447-448.