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1. L’angio-TC dell’aorta

Author

Carlo Catalano, Alessandro Napoli, Beatrice Cavallo Marincola, Carlo Catalano, Alessandro Napoli, and Beatrice Cavallo Marincola

Subjects
Aorta--Tomography
Abstract

Il recente sviluppo tecnologico degli scanner TC e dei sistemi di visualizzazione delle immagini ha consentito un imponente ingresso della tecnica di angio-TC nella pratica clinico-diagnostica, conferendole un ruolo di primo piano sia nello studio in elezione che in situazioni di urgenza/emergenza, grazie ad immagini di qualità ottimale e di facile interpretazione. Il presente volume intende offrire un'introduzione alle tecniche di imaging vascolare con la massima semplicità e praticità possibili, cercando di riportare in maniera esaustiva le basi della tecnica d'esame, le principali patologie riscontrabili nella pratica clinica e i quadri normali e patologici da riconoscere nello studio post-operatorio. L'angio TC della'aorta si propone quindi come utile strumento di aggiornamento per tutte le figure professionali diversamente coinvolte nella diagnosi e nella gestione delle patologie aortiche: dal radiologo, al chirurgo, al tecnico di radiologia.

Published
2012

3. Imaging coronary and extracoronary atherosclerosis: feasibility and impact of whole-body computed tomography angiography

Author

Beatrice Cavallo Marincola, Roberto Passariello, F. A. Calabrese, Alessandro Napoli, Carlo Catalano, Michele Anzidei, Annarita Vestri, Luigi Iuliano, Cesare Greco, Vincenzo Sciacca, Iacopo Carbone, Marco Francone, Marcello Arca, and Miles A. Kirchin

Subjects
Male, medicine.medical_specialty, coronary artery, Whole body imaging, Asymptomatic, Sensitivity and Specificity, whole-body imaging, atherosclerosis, computed tomography angiography, extracoronary artery, Internal medicine, Positive predicative value, medicine, Humans, Radiology, Nuclear Medicine and imaging, Whole Body Imaging, Computed tomography angiography, Neuroradiology, medicine.diagnostic_test, business.industry, Ultrasound, Angiography, Reproducibility of Results, Interventional radiology, General Medicine, Radiographic Image Enhancement, Contrast medium, Cardiology, Feasibility Studies, Radiographic Image Interpretation, Computer-Assisted, Female, Radiology, medicine.symptom, business, Tomography, X-Ray Computed
Abstract

A comprehensive whole-body approach to noninvasive evaluation of coronary and extracoronary vasculature is currently not available. The objective of our study was to assess the potential of 64-slice computed tomography angiography (64-CTA) for whole-body evaluation of atherosclerosis burden. Seventy-eight patients referred for coronary imaging underwent whole-body 64-CTA using an adjusted strategy for the administration of contrast medium with dose-saving algorithms involving ECG modulation and reduced tube voltage. Arterial segments (15 coronary, 32 systemic) were evaluated for significant (or =50%) steno-occlusive disease while arterovenous density was evaluated at seven extracoronary locations. Homogeneous attenuation (mean 321 +/- 20 HU) was obtained throughout the systemic vasculature. Atherosclerosis was observed in 238/995 (24%) coronary and 368/2441 (15%) systemic segments. Significant stenoses/occlusions were present in 214 (21%)/24 (2.5%) coronary segments while asymptomatic clinically relevant stenoses were present in 49 systemic segments. Sensitivity, specificity, positive and negative predictive values of coronary 64-CTA among 52 patients who also underwent quantitative coronary angiography were 92%, 95%, 81% and 98%, respectively. ECG modulation decreased radiation exposure to 14.1-15.4 mSv per patient. Comprehensive, noninvasive assessment of atherosclerosis can be performed by whole-body 64-CTA and may have a positive impact on secondary prevention.

Published
2009

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