CT
Axial C+ arterial phase
- ECG gated, axial CTA shows a small connection between the distal left circumflex artery and the coronary sinus which is grossly dilated, with small regions of eccentric calcification, but separate to the left atrium, draining into the right atrium.
- Adjacent pulmonary subsegmental left lower lobe atelectasis.
- Profound dilation and tortuosity of the left coronary system with relatively small calibre of the mid to distal LAD.
- Eccentric, calcified atherosclerosis within the mid LAD and mid circumflex.
- The right coronary artery is not involved.
- Dilation of the pulmonary trunk relative to the aorta.