Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 87 for “"rectum"”.
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On diseases of the rectum
[Hand-written]
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Accumulating delivered dose to the rectum to improve toxicity prediction in prostate radiotherapy
Accumulating delivered dose to the rectum to improve toxicity prediction in prostate radiotherapy Leila E. A. Shelley Gastrointestinal (GI) toxicity is a clinical issue suffered by up to 22% of prostate cancer radiotherapy patients. However, the relationship between radiation dose and toxicity is …
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A pharmacological study of signal transduction mechanisms controlling fluid reabsorption and Ion transport in the locust rectum
… toxic plant chemicals. The hindgut (ileum and rectum) is responsible for the enormous changes in composition of the urine, by the selective reabsorption of water, ions and metabolites. Both the Malpighian tubules and the hindgut are under endocrine control. The purpose of this study was to …
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Antigenic and Ultrastructural Properties of the Plasma Membrane of Cultured Cells Derived From Carcinomas of the Human Colon and Rectum
Made available in DSpace on 2014-12-11T21:33:51Z (GMT). No. of bitstreams: 1 7511861.pdf: 8702552 bytes, checksum: c2df65d7ffb9f2fdae4a2b66b337699f (MD5) Previous issue date: 1974
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A review of transrectal ultrasound guided prostate biopsies is there still a role for finger-guided prostate biopsies?
… white males (1,2). Prostate biopsy, via the rectum, is an essential part of diagnosing and treating this disease. Traditionally needle biopsies of the prostate were performed blindly by digital palpation of the gland per rectum.
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ΣΥΜΒΟΛΗ ΕΙΣ ΤΗΝ ΘΕΡΑΠΕΙΑΝ ΤΗΣ ΠΡΟΠΤΩΣΕΩΣ ΤΟΥ ΟΡΘΟΥ ΔΙΑ ΤΡΟΠΟΠΟΙΗΣΕΩΣ ΤΗΣ ΜΕΘΟΔΟΥ ORR
10 CASES OF COMPLETE PROLAPSE OF THE RECTUM WERE OPERATED IN THE 3RD SURGICAL CLINIC OF GENERAL HOSPITAL OF PIRAEUS. WE USED A MODIFICATION OF ORR'S PROCEDURE. INSTEAD OF A STRIP OF FASCIA LATA (ORR'S PROCEDURE) WE USED A STRIP OF THE APONEUROSIS OF THE EXTERNAL OBLIQUE MUSCLE, WHICH WE FIXED ON …
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Feasibility of Using Stereotactic Body Radiation as an Alternative to HDR for Treatment of Cervical Cancers
… Minimum doses to 0.5, 1, 2, and 5 cc of rectum and bladder in the highest dose region were compared among HDR, SBRT, and IM-SBRT plans. Total Dose Volume Histograms (DVHs) were also compared. Results: 98% of the CTV was covered by the prescription dose for SBRT and IM-SBRT plans. …
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Volumetric modulated Arc Therapy versus 3D conformal radiotherapy in the treatment of locally advanced cervical cancer. A single institution, comparative dosimetric study
… constraints; femoral heads, bladder, bowel bag, rectum and bone marrow were collected. Results: Of the 45 patients assessed, VMAT showed significantly lower treatment parameter values for CI (1.09 vs 1.49; p< .001) whereas, 3D-CRT showed lower Dmax (48.1Gy vs 49.2Gy; p< .001) and rectum (88.5% vs …
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Using deep learning generated CBCT contours for on-line dose assessment of prostate SABR treatments
… to estimate the daily dose delivered to the rectum and bladder. We compared these estimates to the planned dose-volume metrics to facilitate future development of personalized and quantitative decision trees for prostate SABR treatments. Two-hundred pre-treatment CBCT scans from 40 prostate …
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The molecular genetic and epidemiological investigation of colorectal cancer in South Africa
Cancer of the colon and rectum is the third-most common cause of death due to neoplasia in Western countries. Colorectal cancer (CRC) can broadly be divided into the hereditary, non-hereditary and sporadic forms. Hereditary cancers account for approximately 10% of the CRCs. Familial cancers can be …
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Automated Treatment Planning in High Dose-Rate Brachytherapy for Cervical Cancer
… deep-learning models to segment the bladder, rectum, and sigmoid colon automatically, organs of particular importance for cervical cancer HDRBT. In Chapter 4, I present integration of the organ segmentation modules and other modules into the AutoBrachy system for clinical use to automate the …
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Dose intercomparisons between computer planning, in-vivo and phantom measurements for Iridium-192 HDR Brachytherapy
… to monitor the dose received by the bladder and rectum. This study was aimed at validating the need to do in-vivo dosimetry during ICBT. Thirty patients were recruited to participate in the study. Treatment setup data from the thirty patients was used to reproduce applicator and in-vivo diode …
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Improving Cervical Cancer Nodal Boost Radiation Therapy By Quantifying Uncertainties and Exploring Advanced Radiation Therapy Modalities
… to volumetrically sum dose for the bladder and rectum and created a voxel-by-voxel validation method. The mean error in deformable image registration results of all voxels within the bladder and rectum were 5 and 6 mm, respectively.</p> <p>Finally, the third aim explored the potential use of …
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Range Adaptive Proton Therapy For Prostate Cancer
… fitted with optical fiber and placed inside the rectum of an anthropomorphic pelvic phantom. Photodiode-generated current signal was generated as a function of proton beam distal depth, and the spatial resolution of this technique was calculated by relating the variance in detecting proton spills …
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Laparoscopy and loop colostomy : a new approach to extra-peritoneal rectal injuries
… in patients with low-energy trauma to the rectum. The ever-increasing popularity and obvious advantages of minimal access surgery have prompted surgeons to apply its use to a variety of surgical diseases, including trauma-related conditions. This study retrospectively reviews and examines …
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A study of nematode parasites of some California salamanders
… the finding of Oxyuris dubia Leidy 1856, in the rectum of 33 Ensatine e. Eschscholtzii from Sonoma County, California, and in 3 of 10 Batrachoseps a. Attenuatus, from San Francisco County, California. He also reported Oxyuris magnivulvaris Rankin 1937 in the rectum of 1 to 2 Aneides …
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Influence of food intervention on enteric nervous system and enteroendocrine cells development in a small for gestational age piglet model
… intake. Gut samples (duodenum, ileum, colon, rectum) were collected at postnatal day (PD) 1, 14 and 28, and used for immunohistochemistry (IHC) (n=4/subgroup). Neuronal markers (BIII tubulin (B3T), synaptophysin (SYN), neuropeptide Y (NPY), tyrosine hydroxylase (TH)) and EES markers …
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COMMUNITY STRUCTURES OF GUT MICROBIOME UNDER DIFFERENT DIETS IN ANGUS BEEF CATTLE
… of bile acids in beef cattle. We used rectum microbiota as a baseline and examined the microbiome in rumen and jejunum by16S-seq, together with quantifications of VFAs, lactate, and bile acids under grass-feeding and grain-feeding. We found that microbial communities displayed …
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Characterisation of Escherichia coli of the bovine intestinal tract
… has been found to colonise at the terminal rectum of cattle in preference to other sites in the bovine gastrointestinal tract. The first objective of this work was to characterise the roles of bacterial secreted components responsible for key functions in the modulation of host defences …
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