نتایج جستجو برای: colon absorb dose of patient

تعداد نتایج: 21269460  

Ahmad Khonche, Mahvash Jafari, Mohsen Korani, Morteza Izadi, Tahmasb Salehi,

Introduction: Colon cancer is known as one of the most current cancers in the world and Iran that high percentage of deadly caners in the world is related to colon cancer. The use of new method to treat and control of colon cancer in developed societies are on rise. Ozone is used as the new and effective method to treat of different diseases, infections and scars. In this study, the effects of ...

Journal: :Acta Crystallographica Section A Foundations and Advances 2018

ژورنال: سنجش و ایمنی پرتو 2015

In this research, a water calorimeter that can be used for dosimetry of electron beams from therapy accelerators at low absorption dose has been simulated using MCNP4C computer code. Then the depth dose curves were calculated and compared with experimental values. In addition, the effect of back scattering layers in depth of maximum dose was studied and it was found that these layers absorb the...

Journal: :iranian journal of radiation research 0
f. bouzarjomehri health physics dept. shahid sadoghi univ. of medical sciences, yazd, iran

background: medical x-rays are the largest man-made source of public exposure to ionizing radiation. it is important to avoid conditions where the amount of radiation used is more than that needed for the procedure. materials and methods: the entrance skin exposure (ese) measurement was conducted for quality control of x-ray machines and survey of operator’s experimental techniques. the eses we...

Journal: :iranian journal of radiation research 0
f. bouzarjomehri department of medical physics, shahid sadoghi university of medical sciences, yazd, iran m. h. zare department of medical physics, isfahan university of medical sciences, isfahan, iran d. shahbazi department of medical physics, isfahan university of medical sciences, isfahan, iran

abstract   background: while the benefits of computed tomography (ct) are well known in accurate diagnosis, those benefits are not risk free. ct is a device with higher patient dose in comparison with other conventional radiological procedures. is the reduction of exposures by requiring optimization of ct procedures [a principle concern in radiological protection]? in this study, the radiation ...

Backgrounds and Objectives: Today we are witnessed a growing number of minimally invasive surgical techniques for different diseases. Laparoscopic colon surgery as a minimally invasive surgery is currently growing in treatment of malignancies after proving his place in the treatment of benign diseases. We compare in this study results of laparoscopic colorectal surgery with open surgery. Method...

Ali Parach Fatollah Bouzarjomehri, Mahdieh Ghadimi Reza Nafisi Moghadam Seyed Mohammad Jalil Abrisham

Introduction: Accurate evaluation of femoral and tibial torsion is essential for children or adult with legs deformity, becuse incorrect legs morphogenesis can lead to pathological situation. CT scan is commonly used for the measurement of skeletal bone parameters. But, disability in imaging from standing and sitting posture and absorb dose of patients are deficits of this meth...

Journal: :middle east journal of cancer 0
bulent aksel department of general surgery, ankara oncology training and education hospital, ankara, turkey lutfi dogan department of general surgery, ankara oncology training and education hospital, ankara, turkey niyazi karaman department of general surgery, ankara oncology training and education hospital, ankara, turkey salim demirci department of surgical oncology, ankara university, school of medicine, ankara,turkey

the most common metastatic sites for colorectal carcinomas include the liver, lungs, brain, bones and peritoneal surfaces. in this report, a case of sigmoid colon carcinoma presented with cervical lymphadenopathy was detected with the help of pet/ct. a 57 year-old male presented with a complaint of swelling on the left side of his neck. ultrasonographic examination of the neck revealed three hy...

Journal: :iranian journal of radiation research 0
s.m. ghavami radiology department, paramedical school, tabriz university of medical sciences, tabriz, iran a. mesbahi medical physics department, medical school, tabriz university of medical sciences, tabriz, iran i. pesianian radiology department, paramedical school, tabriz university of medical sciences, tabriz, iran

background: x-ray computed tomography (ct) examinations deliver a significant amount of radiation doses to patients comparing to conventional radiography examinations. the objective of the current study was to analyze and investigate the average patient received dose from axial and spiral ct exams in a medical imaging center. material and methods: in this study, the patient imaging technique, w...

Journal: :journal of paramedical sciences 0
fariba firouzi department of radiology, shahidbeheshti university of medical sciences, tehran, iran soraya emamgholizadeh minaei department of radiology, shahidbeheshti university of medical sciences, tehran, iran hamid reza khosravi nuclear and radiation support department, iranian nuclear regulatory authority, tehran, iran

medical x-rays are the largest man-made source of public exposure to ionizing radiation. while the benefits of computed tomography (ct) are well known in accurate diagnosis, those benefits are not risk free. ct is a device with higher patient dose in comparison with other conventional radiation procedures. so it is important to avoid conditions where the amount of radiation used is more than th...

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