نتایج جستجو برای: conventional imaging

تعداد نتایج: 695223  

Journal: :iranian journal of radiology 0
mehrdad bakhshayeshkaram masih daneshvari hospital, pediatric respiratory diseases research center, tehran, iran; xauthoraffiliactionx farahnaz aghahosseini masih daneshvari hospital, sahid beheshti university of medical sciences, tehran, iran abtin doroudinia masih daneshvari hospital, chronic respiratory diseases research center, tehran, iran soheyla zahirifard mojtaba ansari maryam hassanzad

conclusions 18 f fdg pet/ct is a valuable imaging tool in initial and subsequent treatment strategy in patients with breast cancer by providing additional nodal and distant metastasis and may have the promising future potential to be as the imaging modality of choice for accurate assessment of disease extension in breast cancer in routine clinical practice. methods of a total 256 patients with ...

Arman Rahmim Jing Tang

  In this paper, we review novel techniques in the emerging field of spatiotemporal 4D PET imaging. We will discuss existing limitations in conventional dynamic PET imaging which involves independent reconstruction of dynamic PET datasets. Various approaches that seek to attempt some or all of these limitations are reviewed in this work, including techniques that util...

Journal: :iranian journal of nuclear medicine 2008
arman rahmim jing tang

in this paper, we review novel techniques in the emerging field of spatiotemporal 4d pet imaging. we will discuss existing limitations in conventional dynamic pet imaging which involves independent reconstruction of dynamic pet datasets. various approaches that seek to attempt some or all of these limitations are reviewed in this work, including techniques that utilize iterative temporal smooth...

Journal: :iranian journal of radiology 0
roxana azma assistant professor of radiology, mofid children’s hospital, shahid beheshti university of medical sciences, tehran, iran; md, assistant professor of radiology, mofid children’s hospital, shahid beheshti university of medical sciences, tehran, iran

osteomyelitis in childhood can be a challenging diagnosis. imaging plays an important role in the diagnosis of osteomyelitis in children, and the imaging findings are crucial in the treatment decision. pediatric hematogenous osteomyelitis may have variable radiological expression, which is influenced by the age and condition of the patient, the virulence of the causative agent, the stage of the...

Journal: :asia oceania journal of nuclear medicine and biology 0
ajit s shinto nuclear medicine department, kovai medical center and hospital, india k. kamaleshwaran nuclear medicine department, kovai medical center and hospital, india k vyshak nuclear medicine department, kovai medical center and hospital, india natarajan sudhakar nuclear medicine department, kovai medical center and hospital, india sharmila banerjee isotope applications & radiopharmaceuticals division, bhabha atomic research centre, mumbai, india aruna korde isotope applications & radiopharmaceuticals division, bhabha atomic research centre, mumbai, india

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 region...

تکاور, عباس ,

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...

ژورنال: مجله دندانپزشکی 2011
اسکندرلو, امیر, رحیمی, عزیزاله, رستم پور, نیما, قاضی خانلو ثانی, کریم ,

Background and Aims: The evaluation of absorbed dose received by patients could give useful information for radiation risk estimation. This study was performed to compare the entrance skin dose received by patients in cone beam computed tomography (CBCT), conventional and spiral computed tomography (CT).Materials and Methods: In this experimental study, 81 calibrated TLD chips were used. the TL...

Journal: :American Journal of Orthodontics and Dentofacial Orthopedics 2017

  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 convention...

Background: Conventional echocardiography and tissue Doppler imaging have been highlighted to diagnose diastolic and systolic heart dysfunction. We aimed to compare tissue Doppler imaging with conventional echocardiography to diagnose heart dysfunctions in diabetes mellitus type 1 (DMT1) patients. <s...

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