Frontal CT scout
- mild cardiomegaly with narrow superior mediastinum and characteristic egg-on-side appearance
- mild increase in pulmonary vascularity
Heart
- Situs solitus with the cardiac apex to the left. Normal tracheobronchial tree with right epiarterial and left hyparterial bronchi
- D-ventricular loop is noted with the morphological right ventricle (coarse trabeculation with apical moderator band) is seen to the right of the left ventricle
- atrio-ventricular concordance and ventriculoatrial discordance. The pulmonary artery arises from the left ventricle and the aorta from the right ventricle
- cardiomegaly is noted
- large VSD is noted
Aorta
- the ascending aorta is seen anterior to the main pulmonary artery
- the coronaries have normal course and origin
- right-sided bovine aortic arch with the brachiocephalic and Lt CCA arteries having a common origin
- the descending aorta is seen running in the left para-vertebral course
- a small curved PDA arises just distal to the Lt SCA
- no evidence of thoracic or abdominal aortic coarctation
Pulmonary arteries & veins
- confluent and average sized main pulmonary artery as well as the right and left pulmonary arteries
- Normal pulmonary veins. No evident anomalous pulmonary venous drainage
Venae cava & innominate veins
- normal course of the innominate veins, SVC and the visualized segment of the IVC