Predictors of future onset of atrial fibrillation in hypertrophic cardiomyopathy.

Background: Novel predictors of atrial fibrillation (AF) in hypertrophic cardiomyopathy (HCM) are desirable.

Aim: To detect new multimodality imaging variables predictive of de novo AF in HCM.

Methods: Consecutive patients with HCM underwent clinical assessment and 48-hour Holter electrocardiography to detect AF episodes.

High-resolution three-dimensional late gadolinium-enhanced cardiac magnetic resonance imaging to identify the underlying substrate of ventricular arrhythmia.

Aims: Cardiac magnetic resonance (CMR) is recommended as a second-line method to diagnose ventricular arrhythmia (VA) substrate. We assessed the diagnostic yield of CMR including high-resolution late gadolinium-enhanced (LGE) imaging.

Methods And Results: Consecutive patients with sustained ventricular tachycardia (VT), non-sustained VT (NSVT), or ventricular fibrillation/aborted sudden death (VF/SCD) underwent a non-CMR diagnostic workup according to current guidelines, and CMR including LGE imaging with both a conventional breath-held and a free-breathing method enabling higher spatial resolution (HR-LGE).

Lung morphology assessment of cystic fibrosis using MRI with ultra-short echo time at submillimeter spatial resolution.

Objectives: We hypothesized that non-contrast-enhanced PETRA (pointwise encoding time reduction with radial acquisition) MR (magnetic resonance) sequencing could be an alternative to unenhanced computed tomography (CT) in assessing cystic fibrosis (CF) lung structural alterations, as well as compared agreements and concordances with those of conventional T1-weighted and T2-weighted sequences.

Material And Methods: Thirty consecutive CF patients completed both CT and MRI the same day. No contrast injection was used.