Visipaque 320 mg ml

CTA images were acquired using 192-slice 3^rd generation DSCT scanner (SOMATOM force, Siemens).^{12 (link)} Prospective ECG-gated sequential acquisition was performed during end-systole (absolute delay x-458 ms delay) and mid-diastole (relative delay of 60–75%) or ECG-gated helical acquisition for patients with BMI ≥35 kg/m2 or with atrial fibrillation. Scans were performed using a single inspiratory breath hold. Iodixanol (Visipaque 320 mg/mL, GE Healthcare, Chicago, IL, USA) was administered into an antecubital vein. A volume of 80 to 100 mL at a flow rate of 4 mL/s was used for the image acquisition followed by 100 mL of normal saline. Acquisition was peformed during the (delayed) venous phase for optimization of vein opacification with contrast.
Volume-rendered images were created from CTA images of the coronary venous system and were analyzed. Visible LVS tributary branch veins were manually traced and counted by creating a new segmentation object for the venous system using the region growing function of Syngo.via® (Siemens). A septal LVS vein was defined as a GCV or AIV tributary branch that drains the LVS region medially (rightward) to the GCV/AIV and a diagonal LVS vein was a GCV or AIV tributary branch that drains the LVS region laterally (leftward) to the GCV/AIV. Vein angulations seen in the LVS region were also measured.