نتایج جستجو برای: jaszczak phantom

تعداد نتایج: 17259  

ژورنال: سنجش و ایمنی پرتو 2019

Human tissue equivalent phantoms are widely used in medicine. They are used for dosimetry, calibration of medical devices, and quality control of radiotherapy equipment, as well as training students. Regarding to development of radiotherapy techniques for treatment of cancers and also development of educational centers in the country, the human equivalent phantoms are needed. Several phantoms h...

2017
Syahir Mansor Maqsood Yaqub Dennis Heijtel Martin A. Lodge Ronald Boellaard

Purpose: In longitudinal oncological and brain PET/CT studies it is important to understand the repeatability of quantitative PET metrics in order to assess change in tracer uptake or binding. The present studies were performed in order to assess the aspects of PET/CT repeatability related to reconstruction settings, analysis methods, scan duration (or image noise) and position in the field of ...

Journal: :Physical Review Materials 2023

In this paper, we investigated the anisotropic thermal transport in two-dimensional (2D) perovskite (phenethylammonium lead iodide) nanolayers through a measurement technique called cross-sectional scanning microscopy. method, target layer on substrate was oblique polished with an Ar ion beam to create low-angle wedge nanoscale roughness that is followed by high-vacuum microscopy obtain conduct...

Journal: :Turkish neurosurgery 2017
Orkun Koban Ahmet Öğrenci Onur Yaman Sedat Dalbayrak

Phantom limb pain in amputee patients is not well defined in the literature. Also there is still no clear information on the definition and treatment of phantom radicular pain, in which amputee patients also have radicular pain. This phenomenon, called phantom radiculitis or phantom radiculopathy, has been described in a limited number of cases. If a pathological condition to cause radicular pa...

Journal: :Journal of rehabilitation medicine 2009
Ozlem Ulger Semra Topuz Kezban Bayramlar Gül Sener Fatih Erbahçeci

OBJECTIVE To investigate the effects of phantom limb exercises on phantom limb pain. METHODS A total of 20 traumatic amputees participated in the study. Ten received phantom exercises and prosthetic training, and 10 were treated with routine prosthetic training and a general exercise programme. Intensity of pain was evaluated using a 10-cm visual analogue scale before therapy and after 4 week...

Journal: :Nihon Hoshasen Gijutsu Gakkai zasshi 2009
Chieko Nagashima Nachiko Uchiyama Noriyuki Moriyama Mio Nagata Hiroyuki Kobayashi Katsuhiro Sankoda Shigeru Saotome Masahiro Tagi Tetsurou Kusunoki

Currently daily quality control (QC) tests for mammography systems are generally evaluated by using visual analysis phantoms, which of course means subjective measurement. In our study, however, we evaluated a novel digital phantom, the 1Shot Phantom M plus (1Shot Phantom), together with automatic analysis software dedicated for mammography systems using Fuji computed radiography (FCR). The dig...

Journal: :Physical review 2022

Electron-phonon physics has become an integral part of today's materials science world. In this work, the authors present $a\phantom{\rule{0}{0ex}}b$ $i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}o$ results for zero-point renormalization band gap various semiconductors and insulators. They use a new implementation VASP c...

2004
Laxmaiah Manchikanti Vijay Singh

From Pain Management Center of Paducah, Paducah, Kentucky, and Pain Diagnostic Associates, Niagara, Wisconsin. Address Correspondence: Laxmaiah Manchikanti, MD, 2831 Lone Oak Road, Paducah, Kentucky 42003 E-mail: [email protected] Funding: There was no external funding in preparation of this manuscript. Conflict of Interest: None Since the first medical description of post-amputation phenomena repor...

Journal: :International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 2021

Introduction: Radiotherapy is one of the important treatment modalities in cancer treatment. To maintain procedure accuracy, phantom an essential tool for absolute dosimetry conformation and Quality Assurance routine cheek up. This work aims to study absorbed dose various phantoms hence make a comparison result with IAEA recommendation (TRS 398) daily QA Linac. Materials Methods: The experiment...

H.K. Lee, J.H. Cho, J.W. Hong,

Background: This study assessed the clinical usefulness of the solid phantom, which may compensate for the disadvantages of the water phantom, by comparing the radiological doses between the two depending on their depths. Materials and Methods: The experimental equipment used was a linear accelerator for medical use, water phantom, solid phantom, Farmer type ion chamber and electrometer. The di...

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