PURPOSE: Treatment of choice for uterine cervix cancer stage IIB is radiotherapy. We analyzed survivals, prognostic factors, patterns of failure and complications. MATERIALS AND METHODS: This is a retrospective analysis of 167 patients with stage IIB carcinoma of uterine cervix treated with curative external pelvic and high dose rate intracavitary radiotherapy at the Department of Therapeutic Radiology, Soonchunhyang University Hospital from...

PURPOSE: To determine the incidence and prognostic effect of p53 expression in patients with advanced supraglottic cancer. MATERIALS AND METHODS: Twenty-one cases of total 48 advanced supraglottic cancer patients who received postoperative adjuvant radiation therapy were evaluated by immunohistochemical staining employing p53 monoclonal antibody. RESULT: Three out of six stage III patients and four out of fifteen stage IV patients showed p53...

PURPOSE: To evaluate survival rate and prognostic factors affecting survival of patients with esophageal cancer treated with concurrent chemoradiation. MATERIALS AND METHODS: Eligibility included biopsy proven invasive carcinoma of the cervical or thoracic esophagus, confined to esophagus and mediastinum with or without regional lymph node and supraclavicular lymph node, and ECOG performance status H0-H2. Patients received radiation therapy with 5940 cGy...

PURPOSE: Although local recurrence rates of stomach cancer after radical surgery have been eported in the range of 30-70%, the role of postoperative adjuvant therapy has not been established. We report the result of radiotherapy in resected stomach cancer with positive surgical margin to elucidate the role of postoperative radiotherapy. MATERIALS AND METHODS: From June 1991 to August 1996, twenty five...

PURPOSE: To improve the therapeutic results of postoperative recurrent disease and inoperable disease of stomach cancer, we used the thermoradiotherapy. We conducted a retrospective analysis of the results and compared between the results of hyperthermia before radiotherapy and those of hyperthermia after radiotherapy. MATERIALS AND METHODS: From july 1994 to november 1996, we treated twenty patients of locally advanced stomach cancer...

PURPOSE: To investigate the role of adjuvant chemoradiotherapy in adenocarcinoma of the rectum, we retrospectively compared the treatment results between postoperative adjuvant radiotherapy alone and combined chemoradiotherapy. MATERIAL AND METHODS: From October 1989 to May 1994, 141 patients with rectal carcinoma were treated by postoperative adjuvant therapy in Yonsei Cancer Center. Sixty eight patients were treated by radiation therapy alone. Seventy...

PURPOSE: Carcinomas arising in the gall bladder (GB) or extrahepatic biliary ducts are uncommon and generally have a poor prognosis. The overall 5- year survival rates are less than 10%. Early experiences with the external radiation therapy demonstrated a good palliation with occasional long-term survival. The present report describes our experience over the past decade with irradiation of primary carcinomas...

PURPOSE: This study is to evaluate the efficacy of small bowel displacement system (SBDS) in post-operative pelvic radiation therapy (RT) of rectal cancer patients by measurement of small bowel volume included in the radiation fields receiving therapeutic dose. MATERIALS AND METHOD: Ten consecutive new rectal cancer patients referred to the department of Radiation Oncology of Samsung Medical Center in May of...

PURPOSE: To generate the axial, coronal and sagittal images from conventional simulation images, as a preliminary study of broad-beam simulator CT. METHODS AND MATERIALS: Volumetric filtered back-projection was performed using 90 sheets of films from conventional simulator for every 4. gantry angle. Two mAs exposure condition for 120kVp beam quality at SFD 140cm was given to each film. Outside the silhouette...