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Follow-up of endovascular aortic aneurysm repair:Preliminary validation of digital tomosynthesis and contrast enhanced ultrasound in detection of medium- to long-term complications

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World Journal of Radiology 2016年第5期8卷 530-536页

作者： Maria Antonietta Mazzei Susanna Guerrini Francesco Giuseppe Mazzei Nevada Cioffi Squitieri Dario Notaro Gianmarco de Donato Giuseppe Galzerano palmino sacco Francesco Setacci Luca Volterrani Carlo Setacci Department of Medical Surgical and Neuro SciencesDiagnostic Imaging UnitUniversity of SienaAzienda Ospedaliera Universitaria Senese Diagnostic Imaging Unit Azienda Ospedaliera Universitaria Senese Department of Medical Surgical and Neuro SciencesVascular and Endovascular Surgery UnitUniversity of SienaAzienda Ospedaliera Universitaria Senese Department of General Surgery "P.Valdoni" First School of MedicineUniversity of Rome "La Sapienza"

AIM: To validate the feasibility of digital tomosynthesis of the abdomen(DTA) combined with contrast enhanced ultrasound(CEUS) in assessing complications after endovascular aortic aneurysm repair(EVAR) by using computed tomography angiography(CTA) as the gold ***: For this prospective study we enrolled 163 patients(123 men; mean age, 65.7 years) referred for CTA for EVAR follow-up. CTA, DTA and CEUS were performed at 1 and 12 mo in all patients, with a maximum time interval of 2 ***: Among 163 patients 33 presented complications at CTA. DTA and CTA correlated for the presence of complications in 32/33(96.96%) patients and for the absence of complications in 127/130(97.69%) patients; the sensitivity, specificity, positive predictive value(PPV), negative predictive value(NPV) and accuracy of DTA were 97%, 98%, 91%, 99%, and 98%, respectively. CEUS and CTA correlated for the presence of complications in 19/33(57.57%) patients and for the absence of complications in 129/130(99.23%) patients; the sensitivity, specificity, PPV, NPV and accuracy of CEUS were 58%, 99%, 95%, 90%, and 91%, respectively. Sensitivity, specificity and accuracy of combining DTA and CEUS together in detecting EVAR complications were 77%, 98% and 95%, ***: Combining DTA and CEUS in EVAR follow-up has the potential to limit the use of CTA only in doubtful cases.

关键词： Digital tomosynthesis Contrast enhanced ultrasound Endovascular aortic aneurysm repair followup Endovascular aortic replacement

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