MR imaging of coarctation of the aorta and its postoperative complications in adults: assessment with spin-echo and cine-MR imaging
| Autor: | Carlos Riquelme, Jean-Pierre Laissy, Marie-Pierre Debray, Anne Cinqualbre, David Menegazzo, Elisabeth Schouman Claeys, Jean Langlois |
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| Rok vydání: | 1999 |
| Předmět: |
Adult
Male Aortic arch medicine.medical_specialty Aortography Adolescent Biomedical Engineering Biophysics Coarctation of the aorta Magnetic Resonance Imaging Cine Aortic Coarctation Pseudoaneurysm Postoperative Complications Aneurysm Recurrence medicine.artery Humans Medicine Radiology Nuclear Medicine and imaging cardiovascular diseases Aorta coarctation medicine.diagnostic_test business.industry medicine.disease Magnetic Resonance Imaging Aortic Aneurysm Stenosis Angiography cardiovascular system Female Radiology business Aneurysm False Follow-Up Studies |
| Zdroj: | Magnetic Resonance Imaging. 17:37-46 |
| ISSN: | 0730-725X |
| DOI: | 10.1016/s0730-725x(98)00145-3 |
| Popis: | To evaluate the ability of ECG-gated spin-echo (SE)-MR imaging vs. cine-MR imaging to assess coarctation of the aorta, 11 patients aged 15–45 years, with known or suspected coarctation of the aorta, and five patients suspected of re-stenosis or postoperative false-aneurysms after coarctation repair were examined by multisection SE-MR imaging and single-section multiphase cine-MR imaging on a 1.0 Tesla device. Aortography was performed in 15, and surgery in 14 of these 16 patients. Qualitatively, the location, severity, and length of the coarctation were shown in all cases with MR imaging, as well as the relationship with the arteries arising from the aortic arch. The respective sensitivities and specificities in the assessment of severity of stenoses were 86% and 100% for SE MR images, and 100% and 100% for cine-MR images. Cine-MR imaging was superior to SE imaging in stenosis diameter assessment with contrast angiography as reference, as well as to identify the site of leakage in cases of postoperative pseudoaneurysm. Pre-stenotic dilation or post-stenotic aneurysm, collateral channels, and associated malformations were better identified on SE images. Quantitatively, a better stenosis diameter correlation was found between cine-MR images and angiography than between SE-MR images and angiography (r = 0.99 vs. r = 0.78; p = 0.001 vs. p = 0.004), related to overestimation of stenoses with SE-MR imaging. The use of a combination of spin-echo and cine-MR imaging correlates well with conventional angiographic findings in this small series of patients with coarctation of aorta or postoperative pseudoaneurysmal complications. Cine-MRI can provide anatomic information that is equivalent to angiography for surgical planning. |
| Databáze: | OpenAIRE |
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