نتایج جستجو برای: visualization of colon
تعداد نتایج: 21176256 فیلتر نتایج به سال:
Objectives In order to provide a pharmacological profile for some newly synthesized dihydropyridines, we investigated their effects on the isolated rat colon segments and the isolated rat atrium contractility. The tested compounds include alkyl ester analogues of nifedipine, in which the ortho-nitrophenyl group at position 4 is replaced by 2-alkylthio-1-benzyl-5-imidazolyl substituent, and nif...
Background: Patients with endometrial or ovarian cancer have an increased risk for breast or colon cancer. The aim of this study was to assess the individual and age-related characteristics of patients with a combination of these malignancies. Methods: In this retrospective descriptive study, we reviewed the medical records of 100 patients admitted for endometrial or ovarian cancer in Rasol A...
colorectal cancer most commonly metastasizes to the liver and lung. metastatic colon carcinoma (mcc) to the breast is extremely rare. krukenberg tumor is an uncommon metastatic tumor of the ovary. case presentation: a 38 years woman presented with abdominal pain. in evaluation colon cancer was diagnosed at stage 3. folfox chemotherapy was done. after one year she developed krukenberg tumor. few...
frequency of all types of colorectal tumors in the patients referred to selected hospitals in tehran
background colorectal cancer (crc) is one of the most common cancers worldwide which is not extensively researched in iran. objectives the present study aims to investigate the epidemiologic characteristics of crc in patients referred to selected hospitals of tehran university of medical sciences. patients and methods in this descriptive-analytic study 218 patients with colorectal cancer were i...
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 ...
introduction: various computer assisted medical procedures such as dental implant, orthodontic planning, face, jaw and cosmetic surgeries require automatic quantification and volumetric visualization of teeth. in this regard, segmentation is a major step. material and methods: in this paper, inspired by our previous experiences and considering the anatomical knowledge of teeth and jaws, we prop...
BACKGROUND AND STUDY AIMS Capsule endoscopy is an attractive alternative to colorectal cancer screening by conventional colonoscopy, but is currently limited by compromised mucosal visibility because of the lack of safe, controlled colonic insufflation. We have therefore developed a novel system of untethered, wireless-controlled carbon dioxide (CO2) insufflation for use in colonic capsule endo...
The launch of the Chromosome-Centric Human Proteome Project provides an opportunity to gain insight into the human proteome. The Chinese Human Chromosome Proteome Consortium has initiated proteomic exploration of protein-encoding genes on human chromosomes 1, 8, and 20. Collaboration within the consortium has generated a comprehensive proteome data set using normal and carcinomatous tissues fro...
BACKGROUND An ingestible capsule consisting of an endoscope equipped with a video camera at both ends was designed to explore the colon. This study compared capsule endoscopy with optical colonoscopy for the detection of colorectal polyps and cancer. METHODS We performed a prospective, multicenter study comparing capsule endoscopy with optical colonoscopy (the standard for comparison) in a co...
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