نتایج جستجو برای: rectal wall dose
تعداد نتایج: 500873 فیلتر نتایج به سال:
BACKGROUND Rectal administration of artemisinin derivatives has potential for early treatment for severe malaria in remote settings where injectable antimalarial therapy may not be feasible. Preparations available include artesunate, artemisinin, artemether and dihydroartemisinin. However each may have different pharmacokinetic properties and more information is needed to determine optimal dose...
Background: In prostate radiotherapy, changes in the volume of the bladder and rectum can influence dose delivery. In this study, cone-beam computerised tomography (CBCT) imaging was used to assess volumetric, and corresponding radiation dosimetric changes, for the bladder and rectum in patients with prostate cancer treated using VMAT. Materials and Methods: Treatment planning computed tomograp...
PURPOSE We examined the influence of body mass index (BMI) and body fat distribution on rectal dose in patients treated with permanent seed brachytherapy for localized prostate cancer. METHODS AND MATERIALS We analyzed 213 patients treated with I125 seed brachytherapy for localized prostate cancer. BMI and rectal dosimetry data for all patients were available. Data on visceral and subcutaneou...
OBJECTIVE To compare the accuracy of rectal endoscopic ultrasonography (REU) and magnetic resonance imaging (MRI) for predicting rectal wall involvement in patients presenting histologically proven deeply infiltrating endometriosis (DIE). METHODS This was a retrospective study of a continuous series of 81 patients presenting histologically proven DIE who underwent preoperative investigations ...
Purpose: To disclose effectiveness of substitution of conformal radiotherapy (CRT) with intensity-modulated radiotherapy (IMRT) in combined with 125I permanent seed brachytherapy(BT) in reducing a rectal dose-volume parameter recently proven to be correlated with late rectal bleeding after the combined radiotherapy. Materials/Methods: A CT image set obtained a month after BT was used for CRT an...
Introduction and purpose: The aim of this study is introducing a new Mono-Isocentric Technique)MIT) for external radiotherapy of the chest wall in the mastectomy patients with 6MV photon beams and comparing this technique with the Dual-Isocentric Technique(DIT). Materials and methods: Data of 18 mastectomy patients having chest wall radiotherapy were used. The target tissue was divided into...
BACKGROUND True vaginal prolapse is a rare condition in dogs and it is occasionally observed in animals with constipation, dystocia, or forced separation during breeding. If a true prolapse occurs, the bladder, the uterine body and/or distal part of the colon, may be present in the prolapse. CASE PRESENTATION A 2-year-old intact non pregnant Central Asian Shepherd dog in moderate condition, w...
There are several surgical techniques for the treatment of hemorrhoidal disease, most used currently being stapled hemorrhoidopexy. Complications this procedure rare, although they may occur. The aim study is to report clinical case a patient with severe complication rectal perforation after A 44-year-old man who presented anal pain in his postoperative period hemorrhoid urgent computed tomogra...
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