We present a novel method for localization of large blood vessels using a bioimpedance based needle positioning system on an array of ten monopolar needle electrodes. The purpose of the study is to develop a portable, low cost tool for rapid vascular access for cooling and controlled reperfusion of cardiac arrest patients. Preliminary results show that localization of blood vessels is feasible ...

background: primary pancreatic lymphoma (ppl) is a rare condition and its differentiation from most commonly adenocarcinoma is very important because of different prognosis and treatment strategies. the aim of this study was presenting different aspects for differentiating ppl from pancreatic adenocarcinoma. materials andmethods: during 14 months, 5 patients who underwent endoscopic ultrasonogr...

The enhancement of small vessels in MRA imaging is an important problem. In this paper, we propose using local maximum mean (LMM) processing to enhance the detectability of small vessels. At each voxel in the original three-dimensional (3-D) data set, the LMM over the line segments in the cube centered at the voxel is taken and used to form the 3-D LMM data set. The maximum intensity projection...

the use of in vitro potato shoot cultures for protoplast isolation is desirable for consistent protoplast qualities. ethylene build-up in the culture vessels causes problems for leaf growth (e.g. decreasing leaf surface, dry weight and chlorophyll) in shoot culture. fifty to one hundred µm silver thiosulfate (sts) produced a larger leaf area as a source of plant material for protoplast isolatio...

This study describes the experiences of modular design and implementation an automatic power factor regulator for improving energy efficiency on Taiwanese longline fishing vessels. The load capacities such vessels are typically divided into three categories, depending gross tonnage or fish carrying capacity: less than 100 kW, from kW to 250 larger kW. For attaining proper improvement, a compens...

traumatic coronary artery-cameral fistulas (tcaf) are rare and may present secondary to penetrating injuries (80%) or iatrogenic traumas. early operative intervention remains the recommended treatment modality for accidental traumatic coronary artery fistulas. we report the case of a 17-year-old man who presented with left anterior descending coronary artery-right ventricle fistula following pe...

aneurysms of the left main coronary artery are exceedingly rare clinical entities, encountered incidentally in approximately 0.1% of patients who undergo routine angiography. the most common cause of coronary artery aneurysms is atherosclerosis. angiography is the gold standard for diagnosis and treatment. depending on the severity of the coexisting coronary stenosis, patients with left main co...

results the mean ages in case and control groups were 60.8 ± 6.8 and 57.5 ± 11.5 years, respectively, with no significant difference (p = 0.09). thirty patients (54.5%) in case and 32 (58.2%) in control groups were male with no significant difference (p = 0.7). cmv-dna was present in 8 (14.5%) of the cases and 2 (4%) of the controls. cmv-dna was associated with higher risk of atherosclerosis (o...