PURPOSE: This retrospective study was performed to evaluate the efficacy of radiation therapy (RT) and to investigate the prognostic factors for thymoma when treated with RT. MATERIALS AND METHODS: We analyzed 21 patients with thymoma and also received RT from March 2002 to January 2008. The median follow-up time was 37 months (range, 3 to 89 months). The median patient age was...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.1   

PURPOSE: This study was performed to examine the neck failure patterns after a complete response (CR) to definitive radiotherapy for advanced head and neck cancer patients, as well as evaluate the clinical significance of the results of this study. MATERIALS AND METHODS: Between 1987 and 2008, the clinical data of patients who had been treated with radical radiotherapy for primary squamous...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.9   

PURPOSE: We analyzed the incidence and related factors of radiation dermatitis; at first, to recognize whether a decrease in radiation dermatitis is possible or not in breast cancer patients who received radiation therapy. MATERIALS AND METHODS: Of 338 patients, 284 with invasive breast cancer who received breast conservation surgery with radiotherapy at Chonbuk National University Hospital from January 2007 to June...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.16   

PURPOSE: To evaluate the relationship between the normal tissue complication probability (NTCP) of 3- dimensional (3-D) radiotherapy and the radiographic parameters of 2-dimensional (2-D) radiotherapy such as central lung distance (CLD) and maximal heart distance (MHD). MATERIALS AND METHODS: We analyzed 110 patients who were treated with postoperative radiotherapy for breast cancer. A two-field tangential technique, a three-field technique, and the...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.23   

PURPOSE: Although radiation-induced fibrosis is one of the common sequelae occurring after irradiation of skin and soft tissues, the treatment methods are not well standardized. This study aimed to establish the skin fibrosis mouse model by fractionated radiation for the further mechanism studies or testing the efficacy of therapeutic candidates. MATERIALS AND METHODS: The right hind limbs of BALB/c mice received two...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.32   

PURPOSE: This aim of this study is to analyze the dosimetric difference between intensity-modulated radiation therapy (IMRT) using 3 or 5 beams and MSF in the radiotherapy of the left breast. MATERIALS AND METHODS: We performed a comparative analysis of two radiotherapy modalities that can achieve improved dose homogeneity. First is the multistatic fields technique that simultaneously uses both major and...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.39   

PURPOSE: We report the results of an external audit on the absorbed dose of radiotherapy beams independently performed by third parties. For this effort, we developed a method to measure the absorbed dose to water in an easy and convenient setup of solid water phantom. MATERIALS AND METHODS: In 2008, 12 radiotherapy centers voluntarily participated in the external auditing program and...

DOI: https://doi.org/10.3857/jkstro.2010.28.1.50