BACKGROUND AND PURPOSE The purpose of this work was to assess intertechnique and interobserver reproducibility of 64-row multisection CT angiography (CTA) used to detect and evaluate intracranial aneurysms. MATERIALS AND METHODS From October 2005 to November 2006, 54 consecutive patients with nontraumatic subarachnoid hemorrhage (SAH) underwent both CTA and digital substraction angiography (D...

OBJECTIVE Spinal cord stimulation is commonly used to treat medically intractable pain. Different stimulation designs are used to obtain pain suppression such as tonic stimulation, high frequency stimulation, and burst stimulation. Preliminary analysis of the same data used in this study demonstrated that burst stimulation likely modulates the medial pain pathways in contrast to tonic stimulati...

It was possible to quantitate the terminal oxidase(s) reaction using bacterial resting-cell suspensions and demonstrate the usefulness of this reaction for taxonomic purposes. Resting-cell suspensions of physiologically diverse bacteria were examined for their capabilities of oxidizing N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) using a manometric assay. For organisms having this capability...

The purpose of this study is to evaluate the unity of renal artery stenosis and peripheral vascular disease and to find the frequency of incidental renal artery stenosis in the patients with peripheral vascular disease. In this study,it was included 1502 patients that were sent from cardiovascular surgery department to radiology department to do lower extremity digital substraction angiography ...

Cerebral dopamine (DA) transmission is thought to be an important modulator for the development and occurrence of aggressive behavior. However, the link between aggression and DA transmission in humans has not been investigated using molecular imaging and standardized behavioral tasks. We investigated aggression as a function of DA transmission in a group of (N = 21) healthy male volunteers und...

Fluctuations in the redshifted 21 centimeter emission from neutral hydrogen probe the epoch of reionization. We examine the observability of this signal and the impact of extragalactic foreground radio sources (both extended and point-like). We use cosmological simulations to predict the angular correlation functions of intensity fluctuations due to unresolved radio galaxies, cluster radio halo...

This article present a method for real time hand and head tracking, in three dimensions, using two cameras. This tracking is intended as a first step for a gesture recognition system, using the trajectories of the hands, or as input to a real time clone animation system. The method used is based on simple preprocessings followed by the use of a statistical model linking the observations (obtain...

Purpose: This paper aims to realize an analysis of available radio-imaging methods for outlining various forms of pulmonary embolism (acute or chronic) with highlights on the semiology and adequate medical indications. Methods: There are several types of radiological examinations used in the evaluation of pulmonary embolism such as perfusion scintigraphy V/Q, digital subtraction angiography, co...

Context. The Cluster Lensing And Supernovae survey with Hubble (CLASH) is Hubble Space Telescope (HST) MultiCycle Treasury programme that observes 25 massive galaxy clusters, 20 of which were X-ray-selected to preferably choose dynamically relaxed clusters and 5 additional “high magnification” clusters which were selected based on their optical lensing properties. CLASH aims to study the dark m...

BACKGROUND AND PURPOSE To our knowledge, very few MR imaging data have been reported in isolated cortical venous thrombosis (ICoVT). The purpose of this study was to describe MR imaging features, including T2*gradient-echo (GE) sequence, in presumed ICoVT. MATERIALS AND METHODS MR imaging examinations were performed in 8 patients with ICoVT (MR venography was performed in all patients and dig...