Iloprost, Prostaglandin E1, and Papaverine Relax Human Mesenteric Arteries With Similar Potency.

Objective: Nonocclusive mesenteric ischemia (NOMI) is accompanied by mesenteric artery spasms that are at least in part due to endothelin system activation. Acute treatment includes intra-arterial infusion of vasodilators such as iloprost, prostaglandin E1 (PGE1), and papaverine. Their effectiveness is not well characterized in human mesenteric arteries.

Quantification of liver proton-density fat fraction in 7.1T preclinical MR systems: Impact of the fitting technique.

Purpose: To investigate the feasibility of estimating the proton-density fat fraction (PDFF) using a 7.1T magnetic resonance imaging (MRI) system and to compare the accuracy of liver fat quantification using different fitting approaches.

Materials And Methods: Fourteen leptin-deficient ob/ob mice and eight intact controls were examined in a 7.

Predictors of technical success and rate of complications of image-guided percutaneous transthoracic lung needle biopsy of pulmonary tumors.

Purpose: To investigate predictors of technical success and complications of computed tomography (CT)-guided percutaneous transthoracic needle biopsy of potentially malignant pulmonary tumors.

Material And Methods: From 2008 to 2009, technical success and rate of complications of CT-guided percutaneous transthoracic lung needle biopsies of patients with suspicious pulmonary tumors were retrospectively evaluated. The influence on technical success and rate of complications was assessed for intervention-related predictors (lesion diameter, length of biopsy pathway, number of pleural transgressions, and needle size) and patient-related predictors (age, gender, reduced lung function).