Perivalvular pseudoaneurysm complicating bacterial endocarditis: MR detection in five cases
| Autor: | M Browning, B N Wiechmann, T D Martin, W R Mayfield, R M Slone, E W Akins |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Aortic valve
Male medicine.medical_specialty medicine.medical_treatment Pseudoaneurysm Electrocardiography Aneurysm Valve replacement medicine Endocarditis Humans Radiology Nuclear Medicine and imaging cardiovascular diseases medicine.diagnostic_test business.industry Magnetic resonance imaging General Medicine Endocarditis Bacterial Middle Aged Staphylococcal Infections medicine.disease Magnetic Resonance Imaging Surgery medicine.anatomical_structure Echocardiography Aortic Valve Angiography cardiovascular system Female Radiology business Aneurysm Infected |
| Zdroj: | AJR. American journal of roentgenology. 156(6) |
| ISSN: | 0361-803X |
| Popis: | Bacterial endocarditis usually affects the valve leaflets, but erosion into the valve anulus and adjacent myocardium may form a myocardial abscess. Perivalvular abscesses can drain into the ventricles or aorta, forming a life-threatening pseudoaneurysm. We reviewed our experience with cardiac MR imaging of this disorder. Fourteen patients with complicated bacterial endocarditis underwent ECG-gated spin-echo cardiac MR imaging in addition to conventional duplex two-dimensional echocardiography (2-D echo). Angiography was performed in seven patients, six of whom underwent surgery for valve replacement. MR imaging detected the pseudoaneurysms in all five of the surgically proved cases, while 2-D echo detected only three. Clinical follow-up suggested there were no false-negative examinations, but no autopsy data were available for confirmation. Postoperative MR imaging studies were conducted in three patients, revealing two recurrent pseudoaneurysms and one thrombosed aneurysm. Cardiac MR imaging provides useful pre- and postoperative information in patients with perivalvular pseudoaneurysms due to endocarditis. |
| Databáze: | OpenAIRE |
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