Comparison between vascular Doppler ultrasound and contrast exams in chronic peripheral arterial disease.

Background: Vascular Doppler ultrasound (DUS) has evolved over recent years because of improvements in the technology involved in the acquisition and processing of sound and image data. The method is an excellent option for use in diagnosis of peripheral arterial disease considering its availability, low cost, and absence of harmful effects. The breakdown of logistics supply chains caused by the COVID-19 pandemic caused worldwide shortages of iodinated contrast, highlighting the need to validate alternative diagnostic methods.

Endovascular treatment of central vein occlusion in patients with functioning arteriovenous fistulas.

Background: The increased survival of dialysis patients and the inability to obtain sufficient organs to meet demand for transplantation, compounded by poor access to health services, have caused the transplant waiting lists to grow, extending the time spent using central venous accesses for hemodialysis. The most common etiology of central vein stenosis is prolonged central venous access, due to intimal injuries caused by the presence of the catheter.

Objectives: To assess the results of angioplasty to treat central vein occlusion in patients with functioning peripheral arteriovenous fistulas.

Thoracic aortic aneurysm in a patient with tuberous sclerosis.

Tuberous sclerosis is a genetic disease with autosomal dominant transmission. Its classic presentation comprises epilepsy, mental deficiencies, and sebaceous adenomas. Aneurysms of the aorta can be detected in people with tuberous sclerosis ranging from children a few months old to young adults.

[Not Available].

Behçet’s disease is an autoimmune, multifactorial, systemic condition with several clinical manifestations, including vascular disorders. An aortic aneurysm with vertebral erosion is rare in association with this pathology and there are only four case reports listed on the PubMed database. This article reports the case of a female patient with a long-standing diagnosis of Behçet’s Disease who developed a saccular infrarenal abdominal aortic aneurysm with lumbar vertebral erosion.

Duplex ultrasound and computed tomography angiography in the follow-up of endovascular abdominal aortic aneurysm repair: a comparative study.

Objective: To compare duplex ultrasound and computed tomography (CT) angiography in terms of their performance in detecting endoleaks, as well as in determining the diameter of the aneurysm sac, in the postoperative follow-up of endovascular abdominal aortic aneurysm repair.

Materials And Methods: This was a prospective study involving 30 patients who had undergone endovascular repair of infrarenal aortoiliac aneurysms. Duplex ultrasound and CT angiography were performed simultaneously by independent radiologists.