Evaluation of subclavian steal with two-dimensional phase-contrast and two-dimensional time-of-flight MR angiography
We describe two MR angiographic methods of diagnosing subclavian steal in each of three patients. By using phase-directional information from a single two-dimensional phase-contrast sequence, we were able to show that the direction of flow in the affected vertebral artery was reversed. The same vert...
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| Veröffentlicht in: | American journal of neuroradiology : AJNR 1994-10, Vol.15 (9), p.1642-1645 |
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| container_title | American journal of neuroradiology : AJNR |
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| creator | Drutman, J Gyorke, A Davis, WL Turski, PA |
| description | We describe two MR angiographic methods of diagnosing subclavian steal in each of three patients. By using phase-directional information from a single two-dimensional phase-contrast sequence, we were able to show that the direction of flow in the affected vertebral artery was reversed. The same vertebral artery showed no signal on a 2-D time-of-flight sequence with a concatenated presaturation pulse applied above each section. |
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By using phase-directional information from a single two-dimensional phase-contrast sequence, we were able to show that the direction of flow in the affected vertebral artery was reversed. 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By using phase-directional information from a single two-dimensional phase-contrast sequence, we were able to show that the direction of flow in the affected vertebral artery was reversed. The same vertebral artery showed no signal on a 2-D time-of-flight sequence with a concatenated presaturation pulse applied above each section.</abstract><cop>United States</cop><pub>Am Soc Neuroradiology</pub><pmid>7847207</pmid><tpages>4</tpages></addata></record> |
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| identifier | ISSN: 0195-6108 |
| ispartof | American journal of neuroradiology : AJNR, 1994-10, Vol.15 (9), p.1642-1645 |
| issn | 0195-6108 1936-959X |
| language | eng |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central |
| subjects | Aged Blood Flow Velocity - physiology Carotid Stenosis - diagnosis Carotid Stenosis - physiopathology Case Reports Cerebral Angiography Humans Image Processing, Computer-Assisted Magnetic Resonance Angiography - methods Male Middle Aged Subclavian Steal Syndrome - diagnosis Subclavian Steal Syndrome - physiopathology Vertebral Artery - physiopathology Vertebrobasilar Insufficiency - diagnosis Vertebrobasilar Insufficiency - physiopathology |
| title | Evaluation of subclavian steal with two-dimensional phase-contrast and two-dimensional time-of-flight MR angiography |
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