ArticleYonsei medical journal2018
Mismatch between TOF MR Angiography and CT Angiography of the Middle Cerebral Artery may be a Critical Sign in Cerebrovascular Dynamics.
Article in Yonsei medical journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Use of PETRA-MRA to assess intracranial arterial stenosis: Comparison with TOF-MRA, CTA, and DSA.Frontiers in neurology · 2022Article
- Application of MAGnetic resonance imaging compilation in acute ischemic stroke.World journal of clinical cases · 2021Article
- Middle cerebral artery pressure laterality in patients with symptomatic ICA stenosis.PloS one · 2021Article
- Validation of Zero TE-MRA in the Characterization of Cerebrovascular Diseases: A Feasibility Study.AJNR. American journal of neuroradiology · 2019Article
- Value of Contrast-Enhanced MRA versus Time-of-Flight MRA in Acute Ischemic Stroke MRI.AJNR. American journal of neuroradiology · 2018Article
- Validation of bedside manual versus automated measurements of brain arterial diameters from MR angiography.Journal of neuroimaging : official journal of the American Society of NeuroimagingArticle
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4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeAlthough time-of-flight (TOF)-magnetic resonance angiography (MRA) can clearly depict intracranial arteries, the arterial flow of middle cerebral artery (MCA) is occasionally not detected. We evaluated this phenomenon with reference to cerebrovascular dynamics. MATERIALS AND
methodsSeventeen patients with suspected occlusion of MCA or internal carotid artery on TOF-MRA were enrolled. All patients underwent CT angiography (CTA) and quantitative cerebral blood flow (CBF) examination for measurement of resting CBF and cerebrovascular reactivity (CVR). Depending on appearance, patients were categorized into three groups. Group A (n=6) had MCA delineation on both MRA and CTA, while groups B (n=6) and C (n=5) had no signal on MRA, but Group B had a MCA delineation on CTA.
resultsNo significant difference between resting CBF and CBF after the administration of acetazolamide was seen among 3 groups. In contrast, mean CVR in group B was -19.7±18.1%, which was significantly lower than group A [36.4±21.7% (p<0.05)], but not than group C (21.4±35.2%). Furthermore, all patients in group B displayed a so-called steal phenomenon.
conclusionThis study is the first to show that visualization of MCA on TOF-MRA closely correlates with CVR, and that a vascular pattern showing no MCA signal intensity on MRA but with MCA delineation on CTA indicates a critical cerebrovascular condition.
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