Magnetic resonance coronary angiography with 3D TrueFISP: breath-hold versus respiratory gated imaging
| Autor: | Wynnie W.M. Lam, D Li, Nina Man-ching So, J E Sanderson, A K Y Chan, C Metreweli |
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| Rok vydání: | 2005 |
| Předmět: |
Adult
Male Coronary angiography medicine.medical_specialty Coronary Angiography Sensitivity and Specificity Coronary artery disease Internal medicine Image Interpretation Computer-Assisted Humans Medicine Radiology Nuclear Medicine and imaging Respiratory system Aged Aged 80 and over medicine.diagnostic_test business.industry Respiration Coronary Stenosis Magnetic resonance imaging General Medicine Middle Aged medicine.disease Coronary Vessels Coronary arteries Stenosis medicine.anatomical_structure Cardiology Female business Magnetic Resonance Angiography Respiratory tract Artery |
| Zdroj: | The British Journal of Radiology. 78:116-121 |
| ISSN: | 1748-880X 0007-1285 |
| DOI: | 10.1259/bjr/66677575 |
| Popis: | To compare the diagnostic accuracy of coronary magnetic resonance angiography with three-dimensional (3D) trueFISP breath-hold and respiratory gated techniques for the detection of significant coronary artery stenosis. 15 patients who recently underwent elective coronary angiogram were studied and a total of 60 arteries and 48 arteries were assessed by breath-hold and respiratory gated 3D trueFISP techniques, respectively. The image quality, length of artery visualized and the presence or absence of significant coronary artery stenosis were recorded. 83.3% and 81.7% of the arteries obtained with the respiratory gated and the breath-hold techniques, respectively, had an image quality suitable for further analysis. There was no significant difference in the length of artery visualized. Sensitivity and specificity of 80%, 100% and 75% and 100%, respectively, were obtained with the breath-hold and respiratory gated techniques in detecting significant stenosis in the coronary arteries. Both techniques have moderate sensitivity and high specificity in detection of significant stenosis in the visualized segments of the major coronary arteries. However, they cannot replace conventional coronary angiogram for diagnosing coronary artery disease at present. Further studies are required to evaluate whether breath-hold approach is more efficient, therefore should be performed first and respiratory gated approach reserved for those who cannot breath-hold. |
| Databáze: | OpenAIRE |
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