PURPOSE To evaluate association between equivalent dose in 2 Gy (EQD2) to rectal point dose and gastrointestinal toxicity from whole pelvic radiotherapy (WPRT) and intracavitary brachytherapy (ICBT) in cervical cancer patients who were evaluated by rectosigmoidoscopy in Faculty of Medicine, Chiang Mai University. MATERIALS AND METHODS Retrospective study was designed for the patients with loc...

Purpose: High-dose radiotherapy (RT) for localized prostate cancer requires careful consideration of target position changes and adjacent organs-at-risk (OARs), such as the rectum bladder. Therefore, daily monitoring OAR is crucial in minimizing interfractional dosimetric uncertainties. For efficient internal condition patients, we assessed feasibility an auto-segmentation OARs on acquired imag...

best treatment option, although, there is no common consent on optimal therapy for advanced prostate cancer. case presentation: the present study reports a case of 75 year-old man who had a huge heterogeneous soft tissue mass lesion with non-homogeneous enhancement consisted low attenuated foci occupying pelvis cavity and lower abdomen with loss of mesenteric fat and invasion to posterior bladd...

The objective of this study was to assess the utility of CT-MRI image fusion software and compare both prostate volume and localization with CT and MRI studies. We evaluated the differences in clinical volumes in patients undergoing three-dimensional conformal radiation therapy for localized prostate cancer. After several tests performed to ensure the quality of image fusion software, eight pat...

One of the basic questions for radiation oncologists is what we hope to achieve from treatments that are adjuvant to surgery. Can we achieve a better local control? Is there a decrease in metastatic disease? Can we see an effect on overall survival? Although some questions remain to be answered, some general recommendations for the treatment of rectal cancer can be given. Since the NIH recommen...

introduction: recently, magnetic resonance spectroscopic imaging (mrsi), as a functional imaging method, has been used for clinical target volume definition. in this study, we used this method to define the target volume in prostate radiotherapy. material and method: in this study, we used images of 20 prostate cancer cases. mrsi and mri images were fused with ct images. then, treatment plannin...

Introduction: Radiation therapy is one of the main treatments for rectal cancer. In three-dimensional conformal radiotherapy, exposure of healthy tissue around the tumor is unavoidable. The small intestine is the most important organ at risk of rectal cancer radiotherapy. Intestinal complications are a major factor limiting the dose radiotherapy for rectal cancer. The most com...

Background: According to the EAU guidelines, a life expectancy of more than 10 years is considered an important factor in the treatment of prostate cancer. The Charlson score is used to predict mortality based on comorbidies.The purpose of this study was to investigate the relationship between age, Charlson score and outcome in patients with cT3a prostate cancer. Materials and Methods: Between ...

BACKGROUND The aim of this study was to analyze the influence of volumetric changes of bladder and rectum filling on the 3D dose distribution in prostate cancer radiotherapy. METHODS A total of 314 cone-beam CT (CBCT) image data sets from 19 patients were enrolled in this study. For each CBCT, the bladder and rectum were contoured and volume sizes were normalized to those on their original CT...

The main controversy of colon-rectal laparoscopic surgery comes from its use as a cancer treatment. Two points deserve special attention: the incidence of port-site tumor implantation and the possibility of performing radical cancer surgery, such as total mesorectum excision. Once these points are addressed, the laparoscopic approach will be used routinely to treat rectal cancer. To clarify the...