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- Original Articles
- The RBE of Fractionated Fast Neutron on Walker 256 Carcinosarcoma with KCCH-Cyclotron
- Seong Yul Yoo, Kyoung Hwan Koh, Chul Koo Cho, Charn Il Park, Wee Saing Kang
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Radiat Oncol J. 1987;5(2):75-82.
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For evaluation of biological effect of p+(50.5 MeV) Be neutron beam produced by Korea Cancer Center Hospital(KCCH) cyclotron the RBE had been measured in experimental tumor Walker 256 carcinosarcoma as well as normal tissue, mouse intestine and bone marrow, in single and fractionated irradiation. As pilot study, the RBE had been measured for the mouse jejunal crypt cells in single... |
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- Radiation Therapy Results of the Non-Hodgkin's Lymphoma of the Sinonasal cavity
- Soo Kon Kim, Samuel Ryu, Kyung Ran Park, Chang Gul Lee, Chang Ok Suh, Gwi Eon Kim, John J K Loh, Byung Soo Kim, Won Pyo Hong
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Radiat Oncol J. 1987;5(2):97-104.
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From January 1970 through December 1984, 15 patients with sinonasal Non-Hodgkin's lymphoma combined to the head and neck were treated by external irradiation. 13 patients were stage IE and 2 were stage IIE by Ann Arbor Classification.
However, when using TNM system, 7 were locally advanced T3, T4 lesions. All patients had follow up from 3.7 to 16 years with the... |
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- Clinical and Therapeutic Aspects of Squamous Cell Carcinoma of Oral Tongue
- Samuel Ryu, Chang Gul Lee, In Kyu Park, Chang Ok Suh, Gwi Eon Kim, John J K Loh
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Radiat Oncol J. 1987;5(2):105-110.
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Fourty nine patients with squamous cell carcinoma of oral tongue were reviewed retrospectively for the evaluation of clinical manifestation and for the comparison between therapeutic modalites. The gross shape of the tumor was infiltrative in 22, ulcerative in 12, and ulceroinfiltrative type in 10 patients. Direct extension of the tumor was most commonly to the floor of the mouth. The... |
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- Esophageal Steno-Obstruction due to Nonesophageal Tumors
- Yoon Kyeong Oh, Hak Jun Gil, Soo Mi Chung, Sei Chul Yoon, Kyung Sub Shinn, Yong Whee Bahk
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Radiat Oncol J. 1987;5(2):111-118.
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From March, 1983 to March, 1987, 16 patients with esophageal steno-obstruction due to nonesophageal tumors were treated in the Division of Therapeutic Radiology, Kangnam St. Mary's Hospital, Catholic University Medical College. The patient characteristics, effect of radiotherapy (XRT) on esophageal steno-obstruction and survival were evaluated. The most common primary tumor was lung cancer (14/16) and the middle third of the... |
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- The Studies on the Development of Radiation Pneumonitis and Its Related Factors
- Hyun Suk Suh, Chung Sik Rhee
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Radiat Oncol J. 1987;5(2):119-130.
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With the introduction of X-rays of higher energy that have higher penetrability, it has become possible to treat the deep-seated tumor with increased local control rate. But at the same time it has incrased the damage to the deep seated organs, especially to the lung which is known to be the less radiotolerable tissue in the body. This study analyses... |
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- Radiotherapy of Recurrent Uterine Cervical Cancer
- Sung Whan Ha, Charn Il Park, Kyu Young Choi, Soon Beom Kang, Hyo Pyo Lee, Myon Woo Shin
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Radiat Oncol J. 1987;5(2):131-136.
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Forty seven patients with locally recurrent uterine cerival cancer after surgery were treated with radiation during the 6 year period from 1979 through 1984 at the Department of Therapeutic Radiology of Seoul National University Hospital.
In 30 out of the 47 patients, recurrence was diagnosed within 2 years after surgery. Site of recurrence was vagina in 19 patients, vagina and parametrium... |
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- Accuracy of Dose Estimation in High Dose Rate Intracavitary Radiotherapy of Carcinoma of the Uterine Cervix
- Seung Jae Huh, Sung Whan Ha, Kyu Young Choi
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Radiat Oncol J. 1987;5(2):137-140.
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In brachytherapy of uterine cervical cancer using a high dose rate remote afterloading system, it is of prime importance to deliver a accurate dose in each fractionated treatment by minimizing the difference between the pre-treatment planned and post-treatment calculated doses.
The post-treatment calculated point A dose was not much different from the pretreatment planned dose (500 cGy). The average+/-standard deviation was... |
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- Radiotherapy Treatment Planning in Head and Neck Cancer by CT-Reconstruction
- Samuel Ryu, In Kyu Park
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Radiat Oncol J. 1987;5(2):141-148.
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The ultimate goal of radiotherapy is to result in complete local control of tumor while sparing the surrounding normal tissues as much as possible. Since the development of CT in 1970s, patient's anatomical normal tissues and the site and extent of infiltration of tumor were identified almost accurately. In addition, the isodose distribution of delivered radiation to target tumor was... |
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- The Effect of Therapy Oriented CT in Radiation Therapy Planning
- Sung Kyu Kim, Sei One Shin, Myung Se Kim
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Radiat Oncol J. 1987;5(2):149-156.
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The success of radioation therapy depends on exact treatment of the tumor with significant high dose for maximizing local control and excluding the normal tissues for minimizing unwanted complications. To achieve these goals, correct estimation of target volume in three dimension, exact dose distribution in tumor and normal critical structures and correction of tissue inhomogeneity are required. The effect of... |
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- Variation of Effective SSD According to Electron Energies and Irradiated Field Sizes
- Chil Yong Yang, Ha Yong Yum, Tae Sik Jung
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Radiat Oncol J. 1987;5(2):157-164.
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It is known that fixed source to skin distance (SSD) cannot be used when the treatment field is sloped or larger than the size of second collimator in electron beam irradiation and inverse square law using effective ssd should be adopted. Effective SSDs were measured in different field sizes in each 6, 9, 12, 15 and 18 MeV electron energy... |
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- Application of Generalized Batho Method to Arbitrary Shape of Heterogeneous Tissues
- Kyu Young Chai
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Radiat Oncol J. 1987;5(2):165-168.
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The generalized Batho method, proposed by Webb and Fox, which is a method of calculation of dose correction factor for the multilayer of heterogeneous tissue, is complex even for a few kind of tissues. The method was modified for the purpose of getting a simple method that divide the multilayer of heterogeneous tissues into some groups of adjacent-tissue pairs. This... |
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- Experimental Computer-Based Management System of Patients in Radiation Oncology
- Ihl Bohng Choi, Choon Yul Kim, Yong Whee Bahk
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Radiat Oncol J. 1987;5(2):169-172.
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Currently, many computer systems are used in many areas of medicine including radiation oncology. For the most part, the computer system has proved to be useful in radiotherapeutic planning and dose calculation. There has been attempts to develop computer system including information management of patients, patient tracing, and office automation in radiation oncology department. But some of these available commercial... |
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- Transcatheter Irradiation of Advanced Extrahepatic Biliary Tract Carcinoma
- Kyeoung Ae Kim, Sung Kyu Kim, Sei One Shin, Myung Se Kim, Sun Kyuo Song, Koing Bo Kwun
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Radiat Oncol J. 1987;5(2):173-176.
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Carcinoma of extrahepatic biliary tract is slow growing tumor but curative resection is rarely successful, Radiation therapy has been introduced for enhancing palliation and possible longterm survival. We treated a case of advanced extrahepatic biliary tract carcinoma with high dose rate remote afterloading system through T-tube as a initial irradiation postoperatively. We hope that this treatment may affect not only... |
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