Tailored stereotactic radiotherapy technique using deep inspiration breath-hold to reduce stomach dose for cardiac radioablation

• 발행기관: 대한방사선종양학회
• 저자명: Myung-Jin Cha Phillip S. Cuculich Clifford G. Robinson Ji Hyun Chang
• 간행물 정보: 『대한방사선종양학회지』제39권 제3호, 167~173쪽, 전체 7쪽
• 주제분류: 의약학 > 종양학
• 파일형태: PDF
• 발행일자: 2021.09.30

영문 초록

Purpose: To provide a new insight on a novel safe cardiac radioablation using deep inspiration breath-hold (DIBH) to reduce gastrointestinal dose. Materials and Methods: For treating incessant ventricular tachycardia (VT) originated from left ventricle inferior scar abutting the stomach, a target delineation and treatment planning for cardiac radioablation was performed. With four different computed tomography (CT) scan protocols—DIBH, full expiration breath-hold, four-dimensional (4D) CT without and with abdominal compression, the distances between the target and the stomach were compared. Results: Among the protocols, the CT scan with DIBH showed largest distance between the target and the stomach and selected for the treatment planning. The prescribed dose was 25 Gy in a single fraction, and satisfactory dosimetric parameters were achieved with the DIBH. The patient was successfully treated with the DIBH, and experienced no acute toxicity. Conclusion: To gain the best benefit from cardiac radioablation, understanding the possible toxicity in the adjacent organs is crucial. By moving the heart with thoraco-diaphragmatic movement by DIBH, the target could be physically separated from the stomach.

목차

Introduction

Materials and Methods

Results

Discussion and Conclusion

Conflict of Interest

Acknowledgments

Supplementary Materials

References

키워드

Radiotherapy Ventricular tachycardia Deep inspiration breath-hold