Abdominal aortic coarctation is an extremely rare vascular pathology. Its etiology can be congenital or acquired. Here we present a case of acquired infrarenal abdominal coarctation in a 66-year-old woman who complained of low back and legs pain. She had no signs of resting lower limb ischemia, with diminished distal pulses and normal blood pressure in upper and lower extremities. Magnetic reso...

OBJECTIVES Thoracic endovascular aortic repair (TEVAR) has been shown to lead to increased aortic stiffness. The aim of this study was to investigate the effect of stent graft type and stent graft length on aortic stiffness in a controlled, experimental setting. METHODS Twenty porcine thoracic aortas were connected to a pulsatile mock loop system. Intraluminal pressure was recorded at two sit...

atic duct stents is a recognized complication that occurs in up to 5.2% of patients [1], and stent retrieval is important to prevent long-term serious ductal damage. Reported techniques to remove proximally migrated pancreatic duct stents include balloon extraction, direct snare or forceps grasp, and wire cannulation with snare capture. We report a novel technique using the SpyGlass Direct Visu...

abstract the coupled modflow-hydrus software package was used to produce a saturated-unsaturated flow model for a flood spreading system (fss) and its associated aquifer. the study aim to improve simulations of near-surface hydrological processes, including temporal and spatial variation in groundwater recharge rates. the coupled model was built with average rmse=1.1 and 1.3 for calibration and...

The notion of profile appeared in the 1970s decade, which was mainly due to the need to create custom applications that could be adapted to the user. In what follows, we treat the different aspects of the user’s profile, defining it, profile, its features and its indicators of interest, and then we describe the different approaches of modelling and acquiring the user’s interests.

OBJECTIVE To evaluate the feasibility, safety and the effectiveness of the complex assembly of open cell nitinol stents for biliary hilar malignancy. MATERIALS AND METHODS During the 10 month period between January and October 2007, 26 consecutive patients with malignant biliary hilar obstruction underwent percutaneous insertion of open cell design nitinol stents. Four types of stent placemen...

Percutaneous transluminal coronary angioplasty (PTCA) with stent implantation is widely used for the treatment of coronary stenosis. However, restenosis after stent implantation frequently reported by intravascular ultrasound evaluation. This may occur because of the reduced luminal area after implantation, insufficient stent expansion, or by the elastic recoil of the stent (ERS). Quantitative ...

A new approach for the fabrication of flexible pressure sensors based on aligned carbon nanotubes (A-CNTs) is described in this paper. The technology is suitable for blood pressure sensors that can be attached to a stent-graft and deployed during an endovascular aneurysm repair (EVAR) procedure. Given the specifications of EVAR, the device should be foldable (extremely flexible) and characteriz...

Recommender systems support users in selecting items and services in an information-rich environment. Although recommender systems have been improved in terms of accuracy, such systems are still insufficient in terms of novelty and serendipity, giving unsatisfactory results to users. Two methods of “serendipitous recommendation” are therefore proposed. However, a method for recommending serendi...

We report on the University of Lugano’s participation in the Contextual Suggestion track of TREC 2013 for which we submitted two runs. In particular we present our approach for contextual suggestion which very carefully constructs user profiles in order to provide more accurate and relevant recommendations. The evaluations of our two runs are reported and compared to each other. Based on the tr...