Figure 10. This 53-year-old man had a pericardectomy for pericardial constriction due to tuberculosis 30 years previously but was becoming increasingly breathless, with clinical signs of constriction. T₁ axial spin echo images confirm that the anterior aspect of the pericardium has been stripped, but that thickened pericardium remains in the atrioventricular (AV) groove (arrows), with consequent narrowing of the AV ring and dilatation of the right atrium (RA). Note also the residual empyema (*) and consolidation in the left lung.