Image Quality of Cardiac Magnetic Resonance Imaging in Patients With an Implantable Cardioverter Defibrillator System Designed for the Magnetic Resonance Imaging Environment.

Détails

ID Serval
serval:BIB_C54BECF4B35A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Image Quality of Cardiac Magnetic Resonance Imaging in Patients With an Implantable Cardioverter Defibrillator System Designed for the Magnetic Resonance Imaging Environment.
Périodique
Circulation. Cardiovascular imaging
Auteur(s)
Schwitter J., Gold M.R., Al Fagih A., Lee S., Peterson M., Ciuffo A., Zhang Y., Kristiansen N., Kanal E., Sommer T.
Collaborateur(s)
Evera-MRI Study Investigators
ISSN
1942-0080 (Electronic)
ISSN-L
1941-9651
Statut éditorial
Publié
Date de publication
05/2016
Peer-reviewed
Oui
Volume
9
Numéro
5
Pages
e004025
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Multicenter Study ; Randomized Controlled Trial
Publication Status: ppublish
Résumé
Recently, magnetic resonance (MR)-conditional implantable cardioverter defibrillator (ICD) systems have become available. However, associated cardiac MR image (MRI) quality is unknown. The goal was to evaluate the image quality performance of various cardiac MR sequences in a multicenter trial of patients implanted with an MR-conditional ICD system.
The Evera-MRI trial enrolled 275 patients in 42 centers worldwide. There were 263 patients implanted with an Evera-MRI single- or dual-chamber ICD and randomized to controls (n=88) and MRI (n=175), 156 of whom underwent a protocol-required MRI (9-12 weeks post implant). Steady-state-free-precession (SSFP) and fast-gradient-echo (FGE) sequences were acquired in short-axis and horizontal long-axis orientations. Qualitative and quantitative assessment of image quality was performed by using a 7-point scale (grades 1-3: good quality, grades 6-7: nondiagnostic) and measuring ICD- and lead-related artifact size. Good to moderate image quality (grades 1-5) was obtained in 53% and 74% of SSFP and FGE acquisitions, respectively, covering the left ventricle, and in 69% and 84%, respectively, covering the right ventricle. Odds for better image quality were greater for right ventricle versus left ventricle (odds ratio, 1.8; 95% confidence interval, 1.5-2.2; P<0.0001) and greater for FGE versus SSFP (odds ratio, 3.5; 95% confidence interval, 2.5-4.8; P<0.0001). Compared with SSFP, ICD-related artifacts on FGE were smaller (141±65 versus 75±57 mm, respectively; P<0.0001). Lead artifacts were much smaller than ICD artifacts (P<0.0001).
FGE yields good to moderate quality in 74% of left ventricle and 84% of right ventricle acquisitions and performs better than SSFP in patients with an MRI-conditional ICD system. In these patients, cardiac MRI can offer diagnostic information in most cases.
URL: http://www.clinicaltrials.gov. Unique identifier: NCT02117414.

Mots-clé
Aged, Artifacts, Defibrillators, Implantable/adverse effects, Electric Countershock/adverse effects, Electric Countershock/instrumentation, Female, Heart Diseases/diagnostic imaging, Heart Diseases/physiopathology, Heart Diseases/therapy, Humans, Image Interpretation, Computer-Assisted, Linear Models, Logistic Models, Magnetic Resonance Imaging/methods, Male, Middle Aged, Odds Ratio, Predictive Value of Tests, Prosthesis Design, Reproducibility of Results, Risk Factors, Treatment Outcome, Ventricular Function, Left, Ventricular Function, Right
Pubmed
Open Access
Oui
Création de la notice
29/05/2016 15:24
Dernière modification de la notice
20/08/2019 16:40
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