نتایج جستجو برای: circumferential scanning

تعداد نتایج: 166820  

2014
Sarah N Khan Abbas N Moghaddam Razieh Kaveh Adam Plotnik Evan Lehrman Ali Nsair J Paul Finn

Background Quantitative MR myocardial strain analysis is typically performed using rectilinear or Cartesian grid tagging, and regional contractility is visually assessed by the deformation of the grid1. However, it is difficult to visually isolate circumferential and radial components of displacement and strain from parallel straight lines on short axis images. This study evaluates the potentia...

Journal: :acta medica iranica 0
jafar nader

plastic adhesives, normal butyl cyanoacrylate monomer, isobutyl cyanoacrylate monomer and methyl 2 _ cyaooacrylate monomer, have been utilized in a comparative study with 5-{) silk suture in the repair of transected carotid arteries. follow _ up arteriog rams indicate isobutyl cyanoacrylate monomer and normal butyl cyanoacrylate monomer as having the most impressive rerults with only two thromb...

Journal: :international journal of nano dimension 0
z. sobat catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran. s. sadegh hassani catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran.

scanning near-field optical microscopy (snom) is a member of scanning probe microscopes (spms) family which enables nanostructure investigation of the surfaces on a wide range of materials. in fact, snom combines the spm technology to the optical microscopy and in this way provide a powerful tool to study nano-structures with very high spatial resolution. in this paper, a qualified overview of ...

2014
Jing Wen Zhongsheng Lu Qingsen Liu

Endoscopic submucosal dissection (ESD) for the treatment of esophageal mucosal lesions is associated with a risk of esophageal stenosis, especially for near-circumferential or circumferential esophageal mucosal defects. Here, we review historic and modern studies on the prevention and treatment of esophageal stenosis after ESD. These methods include prevention via pharmacological treatment, end...

2017
Toshinobu Yamagishi Masahiro Kashiura Kazuya Nakata Kazuki Miyazaki Takahiro Yukawa Takahiro Tanabe Kazuhiro Sugiyama Akiko Akashi Yuichi Hamabe

Case Sometimes it is difficult to diagnose circumferential aortic dissection with enhanced computed tomography alone. A 58-year-old woman presented with sudden-onset chest discomfort and loss of consciousness. Transthoracic echocardiogram showed mild aortic regurgitation. Enhanced computed tomography scans showed no obvious intimal tear or flap at the proximal ascending aorta, but an intimal fl...

2017
Jarret M. Woodmass Joshua D. Johnson Isabella T. Wu Daniel B.F. Saris Michael J. Stuart Aaron J. Krych

Horizontal cleavage meniscus tears are a common orthopedic injury often treated with partial or total meniscectomy versus repair. This Technical Note presents a technique for all-inside repair with uniform compression of the superior and inferior leaflets by placement of multiple circumferential compression stitches using an all-inside self-retrieving suture passing device. The currently descri...

Journal: :Vascular and endovascular surgery 2017
Milan Jovanovic Milan Radojkovic Predrag Djordjevic Dejan Rancic Nemanja Jovanovic Zoran Rancic

We present a patient with blunt abdominal trauma with severe acute right limb ischemia and clinical signs of diffuse peritonitis. Computed tomography angiography showed circumferential dissection of the infrarenal aorta with occlusion of the right common iliac artery. We opted for simultaneous abdomen exploration and open repair of injured aorta. Critical weakening of the aortic wall with immin...

2014
Alexander Ferko Julius Orhalmi Tomas Dusek Milan Chobola Eva Hovorkova Dimitar Hadzi Nikolov

INTRODUCTION Currently, the predominant question is whether a laparoscopic approach is comparatively radical in comparison with an open access approach, especially in the circumferential resection margin and quality of the completeness of total mesorectal excision. These factors are important in determining the quality of surgical care as well as long-term results of the treatment. AIM This a...

Journal: :American journal of physiology. Heart and circulatory physiology 2012
V Ferferieva A Van den Bergh P Claus R Jasaityte P Veulemans M Pellens A La Gerche F Rademakers P Herijgers J D'hooge

It is well accepted that strain and strain rate deformation parameters are not only a measure of intrinsic myocardial contractility but are also influenced by changes in cardiac load and structure. To date, no information is available on the relative importance of these confounders. This study was designed to investigate how strain and strain rate, measured by Doppler echocardiography, relate t...

2016
Jacob P. Meyer Corinne A. Jones Chelsea C. Walczak Timothy M. McCulloch

OBJECTIVES/HYPOTHESIS High-resolution manometry (HRM) is useful in identifying disordered swallowing patterns and quantifying pharyngeal and upper esophageal sphincter (UES) physiology. HRM is limited by unidirectional sensors and circumferential averaging of pressures, resulting in an imperfect understanding of pressure from asymmetrical pharyngeal anatomy. This study aims to evaluate UES pres...

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