نتایج جستجو برای: radiation center

تعداد نتایج: 513202  

Background: PET/CT imaging using [18F]-FDG is utilized in clinical oncology for tumor detecting, staging and responding to therapy procedures. Essential consideration must be taken for radiation staff due to high gamma radiation in PET/CT and cyclotron center. The aim of this study was to assess the staff exposure regarding whole body and organ dose and to evaluate environment dose in PET/CT an...

Journal: :AJNR. American journal of neuroradiology 2012
F Bing R Doucet F Lacroix J P Bahary T Darsaut D Roy F Guilbert J Raymond A Weill

BACKGROUND AND PURPOSE To be radiopaque, BAVM embolization products must contain high-atomic-number materials, which may also attenuate photon beams delivered with radiosurgery. This "shielding effect" has been invoked to explain why radiation therapy may be less effective for previously embolized BAVMs. To evaluate the impact of embolization material on radiation dose, we measured and compared...

Amir Nami Mehran Yarahmdi Sohaila Yazdani, Sohrab Sakinehpor

Introduction: Glioma is the most common type of primary brain tumor that originates from glial tissues. These types of tumors have a high degree of malignancy and poor prognosis and low survival rates. The evaluation response to treatment is essential to decide whether present treatment is adequate or need for alternative therapy. The aim of this study was to evaluate the resp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گنبد کاووس - دانشکده علوم پایه مهندسی 1394

فرض کنید $ r $ و $ s $ دو حلقه و $ {}_sc_r $ یک دو مدول شبه دوگان باشد. در این پایان نامه ما رابطه ی بین $ g_{c} $-مرابطه با $ c $-مرابطه و هم چنین رابطه ی بین تحلیل $ g_{c} $-تصویری و تحلیل تصویری از یک مدول را بررسی می کنیم. به علاوه نشان می دهیم که اگر egin{center} $ mathbf{g}^{ullet} : cdots ightarrow g_{1} ightarrow g_{0} ightarrow g^{0} ightarrow g^{1} ightarrow cdots$ end{center}...

2015
Tsair-Fwu Lee Jack Yang Cheng-Shie Wuu An Liu Fu-Min Fang Shyh-An Yeh

1Medical Physics & Informatics Laboratory of Electronics Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan 2Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan 3Department of Radiation Oncology, Institute for Advanced Radiation Oncology, Monmouth Medical Center, Barnabas Health, Long Branch, NJ 07601, USA 4Department...

2016
Tyler Gutschenritter Lichao Zhao Chance Matthiesen Wajeeha Razaq Mohammad Razaq

1College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, USA 2Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, USA 3Department of Radiation Oncology, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, USA 4Hematology/Oncology Section, Department of Medicine, Stephenson Cancer Center, University...

2005
Iman M. Ahmad Nukhet Aykin-Burns Julia E. Sim Susan A. Walsh Ryuji Higashikubo Garry R. Buettner Sujatha Venkataraman Michael A. Mackey Shawn W. Flanagan Larry W. Oberley Douglas R. Spitz

From the ‡Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa 52242, the §Division of Radiation and Cancer Biology, Department of Radiation Oncology, Washington University, St. Louis, Missouri 63108, and the Departments of ¶Biomedical Engineering and Radiology, The University of Iowa, Iowa City...

Journal: :iranian journal of radiation research 0
m. e. parsanezhad department of obstetrics and gynecology, school of medicine, shiraz university of medical sciences, shiraz, iran s. m. j. mortazavi ionizing and non-ionizing radiation protection research center (inirprc), shiraz university of medical sciences, shiraz, iran t. doohandeh department of obstetrics and gynecology, school of medicine, shiraz university of medical sciences, shiraz, iran b. namavar jahromi department of obstetrics and gynecology, school of medicine, shiraz university of medical sciences, shiraz, iran h. mozdarani department of medical genetics, faculty of medical sciences, tarbiat modares university, tehran, iran a. zarei ivf center, shiraz university of medical sciences, shiraz, iran

background: the health effect of rapidly increasing everyday exposure of humans to radiofrequency radiation is a major global concern. mobile phone jammers prevent the mobile phones from receiving signals from base stations by interfering with authorized mobile carriers’ services. in spite of the fact that mobile jammer use is illegal, they are occasionally used in offices, shrines, conference ...

Journal: :International journal of radiation oncology, biology, physics 2015
Silvia C Formenti James F Bonner Stephen M Hahn Theodore S Lawrence Fei-Fei Liu Charles R Thomas

*Department of Radiation Oncology, New York University School of Medicine, New York, New York; yDepartment of Radiation Oncology, University of Alabama Health Services Foundation, South Birmingham, Alabama; zDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania; xDepartment of Radiation Oncology, University of Michigan, Ann Arbor, Michigan; kDepartment of Radi...

2016
Trevor Simard Benjamin Hibbert Madhu K. Natarajan Mathew Mercuri Simon L. Hetherington Robert Wright Ronak Delewi Jan J. Piek Ralf Lehmann Zoltán Ruzsa Helmut W. Lange Håkan Geijer Michael Sandborg Vinay Kansal Jordan Bernick Pietro Di Santo Ali Pourdjabbar F. Daniel Ramirez Benjamin J. W. Chow Aun Yeong Chong Marino Labinaz Michel R. Le May Edward R. O'Brien George A. Wells Derek So

BACKGROUND The adoption of the transradial (TR) approach over the traditional transfemoral (TF) approach has been hampered by concerns of increased radiation exposure-a subject of considerable debate within the field. We performed a patient-level, multi-center analysis to definitively address the impact of TR access on radiation exposure. METHODS AND RESULTS Overall, 10 centers were included ...

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