Amplatzer Plug to Occlude the Internal Iliac Artery During Endovascular Aortic Aneurysm Repair: A Large Multicenter Study.

Objective: During endovascular repair of abdominal aortic aneurysms (EVAR), in the absence of a distal iliac landing zone, the Amplatzer plug is increasingly being used to replace other internal iliac artery (IIA) embolization techniques. This study aimed at assessing the technical success, complication occurrence, and durability of the Amplatzer plug for IIA embolization.

Method: From January 1, 2007 to December 31, 2013, all consecutive patients who underwent internal iliac embolization with an Amplatzer plug during EVAR were included in the study.

Spontaneous T1-Hyperintensity Within an Ovarian Lesion: Spectrum of Diagnoses.

Whenever elevated signal intensity is displayed at magnetic resonance imaging (MRI) within an ovarian lesion on unenhanced T1-weighted sequences, some specific diagnoses should be considered because only 3 main components may be responsible for this T1-hyperintensity at MRI: fat, blood products, and proteinaceous or mucinous material. The associated clinical data and concomitant use of T2-weighted sequences and fat-saturation techniques is mandatory to make this tissue characterization possible. The goal of this pictorial review is to provide a simple radiologic reasoning and the differential diagnoses to consider in the presence of spontaneous elevated signal intensity on T1-weighted sequences within a cystic or solid ovarian tumour.