نتایج جستجو برای: ct number linearity

تعداد نتایج: 1306030  

Journal: :medical journal of islamic republic of iran 0
h tajerzadeh from the biopharmacy division, faculty of pharmacy, tehran university of medical sciences, tehran, ir.iran, 14155/6451. s sadray

a simple, rapid and sensitive hplc method for the determination of theophylline (t) in human serum has been developed. an isocratic system consisting of a /-l bondapak c18 column, mobile phase of methanol, phosphate buffer (22:78, ph=4.5), and a flow rate of 1.4 ml/min was used. the eluent was detected by uv at 275 nm at room temperature. 8-chlorotheophylline (8-ct) was used as an internal stan...

Journal: :Journal of Japan Society of Computer Aided Surgery 2010

Journal: :مجله دانشکده دندانپزشکی اصفهان 0
m - mehdizadeh m ghorashian s rahmati

introduction: maxillofacial region is one of the most complex regions in the body and radiographic imag-ing of this region is difficult because of clinical situation and patient’s cooperation. aim of this study was to evaluate efficient of waters as a preliminary radiography for diagnosis of midface fractures. methods and materials: this was experimental, cross-sectional and prospective study. ...

Journal: :archives of trauma research 0
brandon c. chapman department of surgery, university of colorado school of medicine, colorado, united states; department of surgery, university of colorado school of medicine, colorado, united states. tel: +1-7207373858 douglas m. overbey department of surgery, university of colorado school of medicine, colorado, united states feven tesfalidet school of medicine, university of colorado, colorado, united states kristofer schramm department of radiology, school of medicine, university of colorado, colorado, united states robert t. stovall department of surgery, denver health medical center, colorado, united states andrew french department of emergency medicine, denver health medical center, denver, co, united states

methods retrospective cohort study of blunt trauma patients with rib fractures at a level i trauma center that had both a cxr and a ct chest. the ct finding of ≥ 3 additional fractures in patients with ≤ 3 rib fractures on cxr was considered clinically meaningful. student’s t-test and chi-square analysis were used for comparison. results we identified 499 patients with rib fractures: 93 (18.6%)...

2015
Christophe Crespelle Tien-Nam Le Kévin Perrot Thi Ha Duong Phan

Linearity and contiguity are two parameters devoted to graph encoding. Linearity is a generalisation of contiguity in the sense that every encoding achieving contiguity k induces an encoding achieving linearity k, both encoding having size Θ(k.n), where n is the number of vertices of G. In this paper, we prove that linearity is a strictly more powerful encoding than contiguity, i.e. there exist...

2010
Stefania Pallotta Marta Bucciolini

In radiotherapy treatment portal images and digitally reconstructed radiographs (DRRs) are the most frequently used image-guidance systems to monitor patient set-up during clinical routine. DRR is therefore a critical element in the process of virtual simulation and patient position verification in radiotherapy. The aim of this work was to assess the geometric reliability of the DRR generated b...

2013
Paul L. Rosin Jovanka Pantović

We define a new linearity measure for a wide class of objects consisting of a set of of curves, in both 2D and 3D. After initially observing closed curves, which can be represented in a parametric form, we extended the method to connected compound curves – i.e. to connected configurations of a number of curves representable in a parametric form. In all cases, the measured linearities range over...

Journal: :Electronic Notes in Theoretical Computer Science 2003

Introduction: In vitro dosimetric verification prior to patient treatment plays a key role in accurate and precision radiotherapy treatment delivery. Since the human body is a heterogeneous medium, the aim of this study was to design a heterogeneous pelvic phantom for radiotherapy quality assurance. Material and Methods: A pelvic phantom was ...

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