Figure 1: Thoracic aorta segmentation.

A 70-year old male patient has a history of heart transplant, thoracic aorta penetrating ulcers and thoracic pain. An endovascular repair with stentgraft was performed. Exam was performed for a follow up at 6 months.

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Figure 2: Thoracic aorta measurements.

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Exclusion of ulcers

• No stent graft migration
• Due to the proximal localization of the penetrating ulcer, the left sub -clavian artery has been intentionally covered by the stent graft.

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The fast acquisition speed (40 mm detector coverage per rotation) and spatial resolution (64 X 0.625 mm) of the LightSpeed VCT system combined with the use of VesselIQ Xpress has improved our efficiency for thoracic aorta segmentation and tracking for an accurate analysis of lumen and stent positioning. Technical and injection parameters are set up to capture aorta in 6 seconds, allowing acquisition completely within arterial phase. By decreasing the time for diagnosis, VesselIQ Xpress gives a faster workflow and is a great help for assessing lumen size and stent position.