نتایج جستجو برای: rectal dose

تعداد نتایج: 338424  

آموزگار هاشمی, فرناز , اصفهانی, مهبد , افخمی, مهدیه , حداد, پیمان , فرهان, فرشید , کریمی مقدم, ژاله ,

Background: Colorectal carcinoma is a common malignancy, in treatment of which pelvic radiotherapy plays an important role. But this may lead to azospermia. We designed a study to determine the delivered dose to the testis with thermoluminescence dosimetry (TLD) and compare it to the dose calculated by the Three-dimensional planning software. Methods: We measured the testicular doses by TLD th...

2013
Sumit Sood Andrew W Ju Honkung Wang Siyuan Lei Sunghae Uhm Guowei Zhang Simeng Suy John Carroll John Lynch Anatoly Dritschilo Sean P Collins

BACKGROUND Treating prostate cancer with SBRT could potentially minimize radiation proctitis by reducing high-dose rectal irradiation. In addition, it offers the potential radiobiologic benefits of hypofractionation. This study reports the endoscopic changes and the associated clinical rectal toxicity in these patients. METHODS We reviewed the records of patients treated from 2008-2011 for lo...

2017
Fabian Y S Kong Thusitha W Rupasinghe Julie A Simpson Lenka A Vodstrcil Christopher K Fairley Malcolm J McConville Jane S Hocking

Chlamydia is the most common bacterial sexually transmitted infection among men who have sex with men. Repeat infection following treatment with 1g azithromycin is common and treatment failure of up to 22% has been reported. This study measured the pharmacokinetics of azithromycin in rectal tissue in men following a single 1g dose to assess whether azithromycin reaches the rectal site in adequa...

2017
Maria Jolnerovski Julia Salleron Véronique Beckendorf Didier Peiffert Anne-Sophie Baumann Valérie Bernier Sandrine Huger Vincent Marchesi Ciprian Chira

OBJECTIVE To report grade ≥2 overall late rectal and urinary toxicities in patients (pts) with prostate cancer treated by intensity-modulated radiotherapy (IMRT) at 3 dose-levels. Identify predictors of radiation toxicity and report biochemical progression free survival (bPFS). METHODS A total of 277 pts were treated with 70Gy (10.8%), 74Gy (63.9%) and 80 Gy (25.3%) using IMRT without pelvic ...

Journal: :iranian journal of medical physics 0
seyed ali vaezzadeh ph. d. student in medical physics, tehran university of medical science, tehran, iran mahmood allahverdi associate professor, medical physics dept., tehran university of medical science, tehran, iran hasan nedaie assistant professor, radiotherapy dept., cancer institute, tehran university of medical science, tehran, iran mahdi aghili assistant professor, radiotherapy dept., cancer institute, tehran university of medical science, tehran, iran mahbod esfehani m.sc. in medical physics, radiotherapy dept., cancer institute, tehran university of medical science, tehran, iran ehsan mohammadi m.sc. in medical physics, radiotherapy dept., cancer institute, tehran university of medical science, tehran, iran

introduction: this study was designed to evaluate dosimetric parameters such as rectal dose, bladder dose, integral dose (id), homogeneity index (hi) and conformity index (ci) in various treatment plans for prostate cancer. materials and methods: pelvic computed tomography (ct) scans of 27 patients were acquired and transferred to the rtdoseplan treatment planning system. for each patient, 8 co...

Journal: :British Journal of Surgery 2022

Abstract Aim More than 4 million prostate biopsies are performed worldwide each year (1). Out of three different techniques (Template, transperineal, TRUS), Transperineal precision point biopsy under local anaesthesia is the latest and reported to have fewer infectious complications (2). UTI, Urosepsis, septicaemia some well-known following biopsies. Therefore, Canadian Urological Association r...

2010
Alan J Katz Michael Santoro Richard Ashley Ferdinand Diblasio Matthew Witten

BACKGROUND Improved understanding of prostate cancer radiobiology combined with advances in delivery of radiation to the moving prostate offer the potential to reduce treatment-related morbidity and maintain quality of life (QOL) following prostate cancer treatment. We present preliminary results following stereotactic body radiotherapy (SBRT) treatment for organ-confined prostate cancer. MET...

2009
Adam Chicheł Marek Kanikowski Janusz Skowronek Magdalena Dymnicka Tomasz Piotrowski

PURPOSE Certain constraints for target coverage and dose limits in Organs at Risk (OARs) shows some evidence that doses values and homogeneity index in treated volume depends on prognostic factors such as prostate volume, location of urethra and the number of inserted applicators. Our study is to determine the relation between values of the doses in prostate, OARs and particular prognostic fact...

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