Quantified Aortic Luminal Irregularity as a Predictor of Complications and Prognosis After Endovascular Aneurysm Repair
| Autor: | Hiroko Sugai, Akihiro Hosaka, Nobukazu Okubo, Masaaki Kato, Manabu Motoki |
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| Rok vydání: | 2016 |
| Předmět: |
Male
medicine.medical_specialty Endoleak medicine.medical_treatment Observational Study 030204 cardiovascular system & hematology Kidney Function Tests Endovascular aneurysm repair Severity of Illness Index 03 medical and health sciences Aortic aneurysm 0302 clinical medicine Imaging Three-Dimensional Japan Celiac artery Internal medicine medicine.artery Medicine Humans Aorta Abdominal Aged Retrospective Studies Aged 80 and over Aorta business.industry Hazard ratio General Medicine Odds ratio medicine.disease Prognosis Abdominal aortic aneurysm Ostium Cardiology Female Radiology business Tomography X-Ray Computed 030217 neurology & neurosurgery Aortic Aneurysm Abdominal Research Article |
| Zdroj: | Medicine |
| ISSN: | 1536-5964 |
| Popis: | Atheromatous degeneration of the aorta is considered to be a risk factor for postoperative embolic complications after endovascular treatment, and is associated with a high incidence of vascular events in the long term. We devised a method to quantify the shagginess of the aorta using contrast-enhanced computed tomography (CT) images. This study examined the method's validity and prognostic usefulness in patients undergoing elective endovascular abdominal aortic aneurysm repair (EVAR). We retrospectively investigated 427 patients who underwent elective EVAR between 2007 and 2013. Preoperative contrast-enhanced CT images with a slice thickness of 1 mm were analyzed using a workstation, and the degree of aortic luminal irregularity from the level of the left subclavian artery ostium to that of the celiac artery ostium was quantified by computing a shagginess score. We compared the computed scores with subjective visual assessments of aortic shagginess. Subsequently, we evaluated the relationship between the computed scores and postoperative prognosis. The shagginess scores were significantly correlated with the visual assessments of the aortic lumen, which were performed by 5 experienced vascular surgeons (rho ranged from 0.564–0.654, all P |
| Databáze: | OpenAIRE |
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