نتایج جستجو برای: conventional imaging

تعداد نتایج: 695223  

ژورنال: مجله دندانپزشکی 1999
سفیدپور, المیرا , طلائی پور, احمدرضا ,

This article presents a comparative clinical study of digital imaging, as a new technology, and conventional method for X - Ray absorption in lens and thyroid.Clinical examination was performed on 50 patients with an average of 28 years among the cases who were reffered to the department of rediology, Islamic Azad universiy of IRAN in 1999.Two pocket dosimeters were used to meausre the dose rat...

Journal: :iranian journal of neurology 0
fatemeh bidar ‎department of radiology technology, school of allied medical sciences, shahid ‎beheshti university of medical sciences; tehran, iran fariborz faeghi ‎department of radiology technology, school of allied medical sciences, shahid ‎beheshti university of medical sciences; tehran, iran askar ghorbani iranian center of neurological research, department of neurology, shariati hospital, ‎tehran university of medical sciences, tehran, iran

background: the purpose of this study is to demonstrate the advantages of gradient echo (gre) sequences in the detection and characterization of cerebral venous sinus thrombosis compared to conventional magnetic resonance sequences. methods: a total of 17 patients with cerebral venous thrombosis (cvt) were evaluated using different magnetic resonance imaging (mri) sequences. the mri sequences i...

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
عباس تکاور a takavar

basic physical principles of nuclear magnetic resonance imaging (n.m.r.i), a nonionizing medical imaging technique, are described. principles of nmri with other conventional imaging methods, ie, isotope scanning, ultrasonography and radiography have been compared. t1 and t2 and spin density (s.d.) factors and different image construction techniques based on their different combinations is discu...

Journal: :iranian journal of nuclear medicine 2004
mohsen saghari armaghan fard-esfahani ramin sadeghi mohammad eftekhari

metastatic survey of the patients with known primary malignancies with bone scan is one of the most common studies in nuclear medicine. unfortunately the conventional planar bone scan has a very low specificity for differentiating benign from malignant lesions especially in the spinal column. in this study, we compared the specificity of spect imaging and conventional planar bone scan. we studi...

Ajit S Shinto Aruna Korde Grace Samuel K Vyshak K. Kamaleshwaran Madhav Mallia Natarajan Sudhakar Sharmila Banerjee

  Objective(s): The objective of this study was to evaluate the performance and utility of 99mTc HYNIC-TOC planar scintigraphy and SPECT/CT in the diagnosis, staging and management of gastroenteropancreatic neuroendocrine tumors (GPNETs). Methods: 22 patients (median age, 46 years) with histologically proven gastroentero-pancreatic NETs underwent 99mTc HYNIC-TOC whole body scintigraphy and regi...

جعفریان, علی, رحیم‌زاده, ناهید, صمیمی, کاوه, ضرابی, ویدا, طباطبائی, آذردخت, غفوری, مهیار, نوربخش, ثمیله,

Background: Urinary tract infection 0 in children causes renal scarring and permanent damage to the organ. In this study, we compared the diagnostic value of magnetic resonance urogram for urinary tract anomalies with other conventional imaging methods in children with UTI. Methods: In this case-control study, 190 children (mean age 3.23±3.59 yrs) with UTI were recruited from the Pedi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

Journal: :dental research journal 0
ravi prakash sasankoti mohan navneet gill sankalp verma venkateshwar rao chawa kuber tyagi neha agarwal

the incidence of multiple myeloma (mm) affecting the jaws is 30% and on rare occasions the oral involvement can be the first indication of the disease. authors report a case of mm in a 40-yearold woman who presented with a multilocular radiolucent lesion in the left mandible initially mistaken as an ameloblastoma. conventional radiographs revealed a multilocular lesion on the molar region. comp...

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