| Transcranial color-coded real-time sonographic criteria for occlusion of the middle cerebral artery in acute ischemic stroke. | |
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MedLine Citation:
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PMID: 15569730 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: Transcranial color-coded real-time sonography (TCCS) is a useful tool to evaluate disease of the middle cerebral artery (MCA). This study was undertaken to identify TCCS criteria for the diagnosis of MCA stem and MCA branch occlusions. METHODS: TCCS and digital subtraction angiography were performed in 55 consecutive patients with acute stroke: 10 with MCA stem occlusion, the MO group; eight with MCA branch occlusion, the MB group; and 37 with nonocclusive lesions, the control group. We measured the end-diastolic velocity (EDV) of the bilateral MCA stems and calculated the end-diastolic ratio by dividing the EDV of the unaffected side by that of the affected side. RESULTS: EDV was highest in the control group, and end-diastolic ratio was highest in the MO group. An EDV of >25 cm/s indicated a nonocclusive lesion in the MCA, with a positive predictive value of 98.4%, a negative predictive value of 81.0%, and an accuracy of 93.9%. An EDV of <or=25 cm/s with an end-diastolic ratio of <2.7 indicated an MCA branch occlusion with a positive predictive value of 85.7%, a negative predictive value of 97.2%, and an accuracy of 95.3%. An EDV of <or=25 cm/s with an end-diastolic ratio of >or=2.7 indicated MCA stem occlusion with a positive predictive value of 100%, a negative predictive value of 100%, and an accuracy of 100%. CONCLUSION: We developed TCCS criteria for the diagnosis of MCA diseases. MCA flow velocity detected by means of TCCS can help identify MCA stem occlusion as well as MCA branch occlusion. |
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Authors:
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Toshiyasu Ogata; Kazumi Kimura; Makoto Nakajima; Kouichi Ikeno; Hiroaki Naritomi; Kazuo Minematsu |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: AJNR. American journal of neuroradiology Volume: 25 ISSN: 0195-6108 ISO Abbreviation: AJNR Am J Neuroradiol Publication Date: 2004 Nov-Dec |
Date Detail:
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Created Date: 2004-11-30 Completed Date: 2005-02-08 Revised Date: 2008-02-14 |
Medline Journal Info:
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Nlm Unique ID: 8003708 Medline TA: AJNR Am J Neuroradiol Country: United States |
Other Details:
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Languages: eng Pagination: 1680-4 Citation Subset: IM |
Affiliation:
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Department of Medicine, Cerebrovascular Division, National Cardiovascular Center, Osaka, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Angiography, Digital Subtraction Blood Flow Velocity Brain Ischemia / complications* Case-Control Studies Cerebral Angiography Computer Systems Diastole Female Humans Infarction, Middle Cerebral Artery / complications*, physiopathology, radiography, ultrasonography* Male Middle Aged Predictive Value of Tests Sensitivity and Specificity Stroke / etiology*, ultrasonography* |
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