RESUMEN
Bioresorbable vascular scaffolds (BVSs) represent the newest tool in the treatment of coronary artery disease (CAD). Conversely to the previous metal stents and thanks to the polylactate-based backbone, BVSs could be visualized by magnetic resonance imaging (MRI) without artifacts. These properties allow a potential non-invasive assessment of coronary artery patency after percutaneous coronary intervention (PCI), avoiding cardiac catheterization included iodine contrast and radiation exposure, and potentially more sophisticated imaging tool as the optical coherence tomography (OCT). We reviewed the available medical literature on the coronary MRI evaluation of BVS after PCI, also discussing its potential diagnostic role in the long-term follow-up of these patients.
Asunto(s)
Implantes Absorbibles , Enfermedad de la Arteria Coronaria/terapia , Vasos Coronarios/cirugía , Intervención Coronaria Percutánea , Tomografía de Coherencia Óptica , Enfermedad de la Arteria Coronaria/diagnóstico por imagen , Vasos Coronarios/diagnóstico por imagen , Stents Liberadores de Fármacos , Humanos , Intervención Coronaria Percutánea/métodos , Tomografía de Coherencia Óptica/métodosRESUMEN
Radiological differentiation of an unknown cardiac masse is often a challenging issue. 18F-FDG-PET/CT imaging was performed to evaluate a left ventricle mass visualized on transthoracic echocardiogram (TTE) and cardiac magnetic resonance (CMR) in a patient with an history of ischemic heart disease. The metabolically inert area on the PET/CT, corresponding to the relatively homogenous hypodensity in the LV, was thought to represent an old organized LV thrombus. Histopathological examination confirmed the imaging diagnosis.
Asunto(s)
Fluorodesoxiglucosa F18 , Neoplasias Cardíacas/diagnóstico por imagen , Imagen por Resonancia Cinemagnética/métodos , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Trombosis/diagnóstico por imagen , Anciano , Diagnóstico Diferencial , Fluorodesoxiglucosa F18/administración & dosificación , Cardiopatías/diagnóstico por imagen , Cardiopatías/cirugía , Neoplasias Cardíacas/cirugía , Humanos , Masculino , Trombosis/cirugíaRESUMEN
OBJECTIVES: Forty sites were involved in this multicenter and multivendor registry, which sought to evaluate indications, spectrum of protocols, impact on clinical decision making and safety profile of cardiac magnetic resonance (CMR). MATERIALS AND METHODS: Data were prospectively collected on a 6-month period and included 3376 patients (47.2 ± 19 years; range 1-92 years). Recruited centers were asked to complete a preliminary general report followed by a single form/patient. Referral physicians were not required to exhibit any specific certificate of competency in CMR imaging. RESULTS: Exams were performed with 1.5T scanners in 96% of cases followed by 3T (3%) and 1T (1%) magnets and contrast was administered in 84% of cases. The majority of cases were performed for the workup of inflammatory heart disease/cardiomyopathies representing overall 55.7% of exams followed by the assessment of myocardial viability and acute infarction (respectively 6.9% and 5.9% of patients). In 49% of cases the final diagnosis provided was considered relevant and with impact on patient's clinical/therapeutic management. Safety evaluation revealed 30 (0.88%) clinical events, most of which due to patient's preexisting conditions. Radiological reporting was recorded in 73% of exams. CONCLUSIONS: CMR is performed in a large number of centers in Italy with relevant impact on clinical decision making and high safety profile.