Fig. 4From: Histological validation of cardiovascular magnetic resonance T1 mapping markers of myocardial fibrosis in paediatric heart transplant recipientsExamples of stained myocardial specimens from five patients. Tissue samples from intraventricular septum were stained with picrosirius red. Examples shown demonstrate a) 4.1%, b) 7.1%, c) 10.6%, d) 12.9% and e) 15.2% of collagen volume fraction (×20 magnification)Back to article page