Examination of cerebral blood flow prediction using signals from magnetic resonance angiography: A comparison with cerebral blood flow using 123I-IMP

• Published in: The Showa University Journal of Medical Sciences Vol. 35; no. 2; pp. 92 - 97
• Main Authors: Sakiyama, Koshi, Yasuda, Mitsuyoshi, Sato, Hisaya, Kato, Kyoichi
• Format: Journal Article
• Language: English
• Published: The Showa University Society 2023
• Subjects: carotid artery stenting; magnetic resonance angiography; N-isopropyl-4-123iiodoamphetamine scintigraphy
• ISSN: 0915-6380; 2185-0968
• DOI: 10.15369/sujms.35.92

Carotid artery stenting （CAS） is a procedure used in the treatment of internal carotid artery stenosis, a condition that can lead to cerebral infarction. Cerebral hyperperfusion syndrome is among the post-CAS complications. Thus, to ensure postoperative control, understanding the cerebral blood flow is warranted. Nuclear medicine scan is used for the quantitative assessment of cerebral blood flow; however, since magnetic resonance imaging allows assessment of the cerebral artery, it is often used pre- and postoperatively. In the present study, we compared magnetic resonance angiography （MRA） with nuclear medicine scan to determine if MRA can delineate the cerebral blood flow in patients with CAS. The correlation coefficient between the predicted regional cerebral blood flow obtained from MRA and 123I-IMP was 0.68. Moreover, the concordance rate was high. As a result, the MRA test may be used as an alternative imaging study, and it was found to be a reference value in clinical practice.