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High-resolution car...
High-resolution carotid artery MRA : Comparison with fast dynamicac quistion and duplex ultrasound scanning
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- Wikström, Johan (författare)
- Uppsala universitet,Enheten för radiologi,RAD
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- Johansson, Lars (författare)
- Uppsala universitet,Enheten för radiologi,RAD
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- Rossitti, S. (författare)
- Uppsala universitet,Institutionen för onkologi, radiologi och klinisk immunologi,RAD
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visa fler...
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- Karacagil, Sadettin (författare)
- Uppsala universitet,Institutionen för kirurgiska vetenskaper,Vascular Surgery
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- Ahlström, Håkan (författare)
- Uppsala universitet,Enheten för radiologi,RAD
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visa färre...
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: Acta Radiologica. - 0284-1851 .- 1600-0455. ; 43:3, s. 256-261
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- PURPOSE: To determine whether the diagnostic accuracy of contrast-enhanced MR angiography (CE-MRA) of the carotid arteries is improved by using a slow-injection, high-resolution technique. MATERIAL AND METHODS: In 22 patients suspected to have internal carotid artery (ICA) stenosis at duplex ultrasound scanning (DUS), CE-MRA was performed both with a fast, dynamic (8 s/phase) and with a slower, high-resolution technique (scan time 2:20 min). RESULTS: There was conformity between the CE-MRA techniques regarding the degree of stenosis in 34/40 extracranial ICAs. In 3/6 discrepant cases, short occlusions were seen with the fast dynamic technique, whereas both the high-resolution CE-MRA technique and DUS showed patent vessels. There was an overall tendency toward higher stenosis grading with the dynamic technique. Overlying veins could be removed on a workstation in all high-resolution examinations. CONCLUSION: The high-resolution carotid CE-MRA technique proposed herein seems to improve the diagnostic accuracy, at least for differentiation between high-grade stenoses and occlusions.
Nyckelord
- MEDICINE
- MEDICIN
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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