نتایج جستجو برای: colon absorb dose of patient
تعداد نتایج: 21269460 فیلتر نتایج به سال:
In regard with increasing use of brachytherapy for treatment of cancer, especially prostate cancer, dosimetry of the organs surrounding prostate is necessary. The received dose by prostate is relatively high and the healthy organs surrounding prostate are potentially at a risk of high dose too. In this paper, the doses delivered to the prostate and organs of interest were calculated by MCNP4C c...
Dear Editors: Adenocarcinoma of colon and rectum is the second most common cancer of the gastrointestinal (GI) tract in children. The development of carcinoma of colon in general appears to be associated with several predisposing factors such as familial polyposis, hereditary non-polyposis syndromes, ulcerative colitis, previous ureterosigmoidostomy or radiation therapy and dietary factors (hig...
The aim of this paper is to introduce new methods of colorectal and anus surgeries. It is not a comprehensive paper and just is a summary of issues related to colon surgeries due to intestinal inflammatory diseases (ulcerative colitis and Crohn's disease), and anus cancer. Ulcerative colitis usually initiates from rectum and then develops upward to colon. There are three methods of surgery for ...
background: annual patient effective dose equivalent can be considered as a quantitative physical parameter describing the activities performed in each nuclear medicine department. annual staff dose equivalent could be also considered as a parameter describing the amount of radiation risk for performing the activities. we calculated the staff to patient dose equivalent ratio to be used as a phy...
In this report we introduce an 8 years old boy with Transverse colon inflammatory pseudotumor. The patient was admitted to Boo-Ali Sina Hospital with abdominal pain, fever and vomiting. In clinical examinations an abdominal mass in splenic flexure was palpated. Imaging study with CT-Scan revealed a calcified mass in transverse colon wall with lymphadenopathy and lymphoma was suggested....
colonic lipoma is a benign neoplasm that can lead to colonic obstruction but concomitant intussusception is rare in adults. in this case, colocolic intussusception due to a lipoma in the descending colon had occurred. by laparatomy, we diagnosed the problem , but reduction was impossible . so resection of the colon with mass was done and anastomosed. after surgery and 3 years follow up the pati...
dear editors: adenocarcinoma of colon and rectum is the second most common cancer of the gastrointestinal (gi) tract in children. the development of carcinoma of colon in general appears to be associated with several predisposing factors such as familial polyposis, hereditary non-polyposis syndromes, ulcerative colitis, previous ureterosigmoidostomy or radiation therapy and dietary factors (hig...
Colonic lipoma is a benign neoplasm that can lead to colonic obstruction but concomitant intussusception is rare in adults. In this case, colocolic intussusception due to a lipoma in the descending colon had occurred. By laparatomy, we diagnosed the problem , but reduction was impossible . So resection of the colon with mass was done and anastomosed. After surgery and 3 years follow up the pati...
objective: investigating some biological side effects of radiations resulted from fusion reaction experiments in damavad tokamak. materials and methods: the absorbed dose of the personnel in damavand tokamak was measured using lif dosimeters and analyzed. results: in damavand in areas near the forbidden zone around this device the level of the received dose is very high (more than 6 msv for eac...
postpolypectomy bleeding and perforation are the major complications of colonoscopy. this report presents a rare case of colon obstruction immediately after colonoscopy. a 56-year-old man underwent colonoscopy because of 6 months lower abdominal pain. colonoscopy revealed diverticulosis and multiple small sessile polyps in sigmoid colon. biopsy samples were taken from the polyps and the procedu...
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