Coil-assisted retrograde transvenous obliteration of gastric varices by an inverted catheter tip technique via the pericardiophrenic vein.

A 70-year-old woman with liver cirrhosis was admitted to our hospital for treatment of growing gastric varices in the fundus. Computed tomography showed gastric varices continuously draining the pericardiophrenic vein via the inferior phrenic vein. Balloon-occluded retrograde transvenous obliteration by a transjugular approach was planned.

Mid-term Results of Endovascular Treatment for Infrarenal Aortic Stenosis and Occlusion.

Background: Focal stenosis or occlusion of the infrarenal aorta is rare, and treatment is usually conventional bypass or endarterectomy. However, endovascular treatment has advanced in recent years. The purpose of this retrospective study is to report the results of primary stenting for focal infrarenal aortic occlusive disease and clarify the usefulness of endovascular treatment.

Neointimal hyperplasia after stent placement across size-discrepant vessels in an animal study.

Purpose: To examine differences in neointimal hyperplasia (NIH) after placing a self-expanding (SE) stent across size-discrepant vessels.

Materials And Methods: The subjects were 6 beagles, and the target vessels were the abdominal aorta and the external iliac artery (EIA). A nitinol SE stent was placed which was normal-sized in the aorta and oversized in the EIA.

Systemic artery to pulmonary artery fistula associated with mitral regurgitation: successful treatment with endovascular embolization.

We present the case of a 60-year-old woman with symptomatic mitral regurgitation caused by a left-to-right shunt via anastomoses consisting of microfistulae, most likely of inflammatory origin, between the right subclavian artery and the right pulmonary artery. The three arteries responsible for fistulous formation, including the internal mammary, thyrocervical, and lateral thoracic arteries, were successfully occluded by transcatheter embolization using superabsorbent polymer microsphere (SAP-MS) particles combined with metallic coils. No complications have been identified following treatment with SAP-MS particles.

An animal model for type II endoleaks with use of a tsuzumi drum-shaped stent-graft.

Purpose: To create an animal model of type II endoleaks after endoluminal deployment of a specially designed stent-graft (SG).

Materials And Methods: Five swine were used. A tsuzumi drum-shaped SG consisting of a covered Z stent with its diameter narrowed at the center was deployed in the midthoracic aorta.

Detection of portal perfusion abnormalities: comparison of 3 ferucarbotran-enhanced magnetic resonance imaging sequences.

Objective: To estimate the accuracy, sensitivity, and specificity of 3 ferucarbotran-enhanced magnetic resonance (MR) imaging sequences prospectively for the detection of nontumoral portal perfusion abnormalities.

Methods: Thirty-nine noncirrhotic patients with liver metastases underwent computed tomography during arterial portography (CTAP) and MR imaging comprising T1-weighted gradient recalled echo (GRE), T2-weighted fast spin echo (FSE), and T2*-weighted GRE sequences with and without ferucarbotran. Magnetic resonance images were reviewed by 4 blinded observers for rating based on the confidence scale.