Note: the service only applies if the patient meets the requirements of the descriptor and the requirements of Note: TR.8.3 (item 38247), TR.8.2 (item 38249) or item 38252 if subclause (iv) applies. Computed tomography of the coronary arteries performed on a minimum of a 64 slice (or equivalent) scanner, if: (a) the service is requested by a specialist or consultant physician; and (b) at least one of the following apply to the patient: (i) the patient has stable symptoms and newly recognised left ventricular systolic dysfunction of unknown aetiology; (ii) the patient requires exclusion of coronary artery anomaly or fistula; (iii) the patient will be undergoing non-coronary cardiac surgery; (iv) the patient meets the criteria to be eligible for a service to which item 38247, 38249 or 38252 applies, but as an alternative to selective coronary angiography will require an assessment of the patency of one or more bypass grafts (R) (Anaes.)