Table of Contents
ISRN Radiology
Volume 2013, Article ID 826073, 6 pages
http://dx.doi.org/10.5402/2013/826073
Clinical Study

The Role of ECG-Gated CT in Patients with Bicuspid Aortic Valve Replacement: New Perspectives in Short- and Long-Term Followup

1Dipartimento di Diagnostica per Immagini, Imaging Molecolare, Radiologia Interventistica e Radioterapia, Fondazione Ospedaliera Policlinico “Tor Vergata”, Viale Oxford 81, 00133 Roma, Italy
2Dipartimento di Cardiochirurgia, Fondazione Ospedaliera Policlinico “Tor Vergata”, Viale Oxford 81, 00133 Roma, Italy

Received 16 September 2012; Accepted 3 October 2012

Academic Editors: S. Mori and B. Puri

Copyright © 2013 Massimiliano Sperandio et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of our study was to compare the results of the TTE (transthoracic echocardiography) with the results obtained by the ECG-gated 64 slices CT during the followup of patients with bicuspid aortic valve (BAV), after aortic valve replacement; in particular we evaluated the aortic root and the ascending aorta looking for a new algorithm in the followup of these patients. From January 1999 to December 2009 our attention was focused on 67 patients with isolated surgical substitution of aortic valve; after dismissal they were strictly observed. During the period between May and September 2010, these patients underwent their last evaluation, and clinical exams, ECG, TTE, and an ECG-gated-MDCT were performed. At followup TTE results showed an aortic root of  mm and an ascending aorta of  mm. ECG- gated CT showed an aortic root of  mm and an ascending aorta of . The comparison between preoperative and postoperative TTE shows a significant long-term dilatation of the ascending aorta while the aortic root diameter seems to be stable. ECG-gated CT confirms the stability of the aortic root diameter (  mm versus   mm; <0.0001) and the increasing diameter value of the ascending aorta (  mm versus  mm; ). Due to the different findings between CT and TTE studies, ECG-gated CT should no longer be considered as a complementary exam in the followup of patients with BAV, but as a fundamental role since it is a real necessity.