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;Re-operative cardiothoracic surgery
*Relationship of cardiovascular structures to sternum.
*Relationship of coronary bypass grafts to sternum
*Atherosclerotic calcification of ascending aorta
*Anatomy of subclavian & axillary arteries and aortic arch
;Percutaneous aortic valve
*Aortic root dimensions
*LV outflow tract: size; septal thickness
*Relationship of aortic root to body axis
*Caliber and contour of access vessels
;Pulmonary venous ablation
*Pulmonary venous anatomy
*Branching pattern
*Thrombus
*Relationship to oesophagus
;Robotic mitral valve repair
*Annulus and leaflet morphology
*Mitral annular calcification
*Atherosclerosis of access vessels
*Distance from sinotubular junction to arch
;Cardiac resynchronisation therapy
*Coronary venous anatomy
*Scar in lateral wall
;Percutaneous mitral annuloplasty
*Distance between coronary sinus/GCV and annulus
*LCX between CS-GCV and annulus
*Calcification of mitral annulus
;Atrial septal defect closure
*Type of defect
*Size of defect
*Rim of defect
*Associated cardiovascular anomalies*Thrombus;Ventricular septal defect closure
*Type of defect
*Size of defect
*Shape of defect
*Proximity to valves and AV conduction bundle
;Endovascular stent grafts
*Measurement of the primary pathology
*Maximal aortic diameter at the landing zone/neck
*Angulation at diaphragm
*Calibre of femoral/iliac arteries
;Percutaneous pulmonary valve implantation
*Calibre of RV-PA conduit
*Length of the conduit available from pulmonary artery bifurcation