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J Korean Soc Ther Radiol > Volume 9(2); 1991 > Article
Journal of the Korean Society for Therapeutic Radiology 1991;9(2): 265-270.
Intraoperative Radiotherapy (IORT) for Locally Advanced Colorectal Cancer
Myung Se Kim, Sung Kyu Kim, Jae Hwang Kim, Koing Bo Kwan, Heung Dae Kim
1Department of Therapeutic Radiology, College of Medicine, Yeung Nam University, Taegu, Korea.
2Department of General Surgery, Anesthesiology College of Medicine, Yeung Nam University, Taegu, Korea.
3Department of Anesthesiology College of Medicine, Yeung Nam University, Taegu, Korea.
Colorectal cancer is the second most frequent malignant tumor in the United States and fourth most frequent tumor in Korea. Surgery has been used as a primary treatment modality but reported overall survivals after curative resection were from 20% to 50%. Local recurrence is the most common failure in the treatment of locally advanced colorectal cancer. Once recurrence has developed, surgery has rarely the role and the five year survival of locally advanced rectal cancer is less than 5%, this indicated that significant improvement of local conrol could be achieved. We performed 6 cases of IORT for locally advanced colorectal cancer which is he first experience in Korea. Patient's eligibility, treatment applicator, electron energy, dose distribution on the surface and depth within the treatment field and detailed skills are discussed. We hope that our IORT protocol can reduce local failure and increase the long term survival significantly.
Key Words: Intraoperative radiotherapy (IORT), Locally advanced colorectal cancer, Local control
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