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The Journal of the Korean Society for Therapeutic Radiology and Oncology 2000;18(4): 251-256. |
| Preliminary Results of Stereotactic Radiosurgery Using Stereotactic Body Frame |
| Seung Do Ahn, Byong Yong Yi, Eun Kyung Choi, Jong Hoo Kim, Young Ju Nho, Kyung Hwan Shin, Kyoung Ju Kim, Won Kyun Chung, Hyesook Chang |
| Department of Radiation Oncology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea. |
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| ABSTRACT |
PURPOSE:
To evaluate efficacy and complication of stereotactic radiosurgery using stereotactic body frame.
METHODS AND MATERIALS: From December 1997 to June 1999, 11 patients with primary and metastatic tumors were treated with stereotactic radiosurgery using stereotactic body frame(Precision Therapy(TM)). Three patients were treated with primary hepatoma and seven with metastatic tumor from liver, lung, breast, trachea and one with arteriovenous malformation on neck. We used vacuum pillow for immobilization and made skin marker on sternum and tibia area with chest marker and leg marker. Diaphragm control was used for reducing movement by respiration. CT-simulation and treatment planning were performed. Set-up error was checked by CT-Simulator before each treatment. Dose were calculated on the 80~90% isodose of isocenter dose and given consecutive 3 fractions for total dose of 30 Gy (10 Gy/fraction).
RESULTS:
Median follow-up was 12 months. One patient (9%) showed complete response and four patients (36%) showed partial response and others showed stable disease. Planning target volumes (PTV) ranged from 3 to 111 cc (mean 18.4 cc).
Set-up error was within 5 mm in all directions (X, Y, Z axis). There was no complication in all patients.
CONCLUSION:
In primary and metastatic tumors, stereotactic radiosurgery using stereotactic body frame is very safe, accurate and effective treatment modality. |
| Key Words:
Stereotactic body frame, Radiosurgery |
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