Type B aortic dissection can be treated effectively with TEVAR. The incidence of distal SINE is not negligible but is not associated with poor outcomes. The main determinant of SINE seems to be an excessive oversizing, which is particularly evident in the distal end. More accurate sizing can be obtained by evaluating the area of the true lumen.

Chest CT can be considered a screening test in the assessment of patients with PAH of unknown aetiology, and the radiologist can help the clinician to identify patients with CT findings that make PVOD highly probable.

We present a case of a 48-year-old female patient with Marfan syndrome and previous open surgeries for Bentall procedure and arch replacement with frozen elephant trunk (FET) technique, who was admitted at our Department with a diagnosis of ascending aorta pseudoaneurysm at the anastomosis-site between composite valve graft and arch prosthesis treated by endovascular procedure because of she was considered to be at high-risk for a third open surgery and for the patient's favorable anatomy for endovascular closure of the pseudoaneurysm. The patient was successfully treated with the positioning of two abdominal cuffs through the left axillary artery. The postoperative course was uneventful and at 2-month follow-up, the patient was free of complications with CT angiogram showing complete endovascular exclusion of the pseudoaneurysm.

• CT image quality of aortic root-ascending aorta is challenging. • Non ECG-gated scans are often limited by pulsatility artefacts. • ECG-gated examinations are usually limited by high radiation doses. • Non ECG-gated 128-slice low dose CTAA provides high quality images. • 128-slice CTAA low dose protocol could frequently replace ECG-gated CTAA.