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Phase-contrast magn...
Phase-contrast magnetic resonance imaging of intracranial and extracranial blood flow in carotid near-occlusion
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- Holmgren, Madelene (författare)
- Umeå universitet,Institutionen för strålningsvetenskaper,Neurovetenskaper
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- Henze, Alexander (författare)
- Umeå universitet,Institutionen för strålningsvetenskaper
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- Wåhlin, Anders (författare)
- Umeå universitet,Institutionen för strålningsvetenskaper,Umeå centrum för funktionell hjärnavbildning (UFBI),Institutionen för tillämpad fysik och elektronik
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- Eklund, Anders, 1965- (författare)
- Umeå universitet,Institutionen för strålningsvetenskaper,Umeå centrum för funktionell hjärnavbildning (UFBI)
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- Fox, Allan J. (författare)
- Sunnybrook Health Science Center, University of Toronto, Toronto, Canada
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- Johansson, Elias, 1984 (författare)
- Umeå universitet,Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology,Wallenberg centrum för molekylär medicin vid Umeå universitet (WCMM),Neurovetenskaper,Neuroscience and Physiology, Gothenburg University, Göteborg, Sweden
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(creator_code:org_t)
- Springer Nature, 2024
- 2024
- Engelska.
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Ingår i: NEURORADIOLOGY. - : Springer Nature. - 0028-3940 .- 1432-1920.
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Purpose Compare extracranial internal carotid artery flow rates and intracranial collateral use between conventional >= 50% carotid stenosis and carotid near-occlusion, and between symptomatic and asymptomatic carotid near-occlusion. Methods We included patients with >= 50% carotid stenosis. Degree of stenosis was diagnosed on CTA. Mean blood flow rates were assessed with four-dimensional phase-contrast MRI. Results We included 110 patients of which 83% were symptomatic, and 38% had near-occlusion. Near-occlusions had lower mean internal carotid artery flow (70 ml/min) than conventional >= 50% stenoses (203 ml/min, P < .001). Definite use of >= 1 collateral was found in 83% (35/42) of near-occlusions and 10% (7/68) of conventional stenoses (P < .001). However, there were no differences in total cerebral blood flow (514 ml/min vs. 519 ml/min, P = .78) or ipsilateral hemispheric blood flow (234 vs. 227 ml/min, P = .52), between near-occlusions and conventional >= 50% stenoses, based on phase-contrast MRI flow rates. There were no differences in total cerebral or hemispheric blood flow, or collateral use, between symptomatic and asymptomatic near-occlusions. Conclusion Near-occlusions have lower internal carotid artery flow rates and more collateral use, but similar total cerebral blood flow and hemispheric blood flow, compared to conventional >= 50% carotid stenosis.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Nyckelord
- Carotid stenosis
- Carotid near-occlusion
- Intracerebral flow
- Collaterals
- Phase-contrast MRI
- CT angiography
- Carotid near-occlusion
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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