This paper presents a review of the different approaches existing in the literature to detect and quantify fibrosis in contrast-enhanced magnetic resonance images of the left atrial wall. The paper provides a critical analysis of the different methods, stating their advantages and limitations, and providing detailed analysis on the possible sources of variability in the final amount of detected fibrosis coming from the use of different techniques.
Keywords: Atrial fibrillation; Cardiac magnetic resonance; Atrial fibrosis; Delayed-enhancement MRI; Late gadolinium enhancement; Catheter ablation.