Deep inspiration breath-hold reduces esophageal dose in spinal stereotactic body radiotherapy: A feasibility study
We aimed to assess whether deep inspiration breath-hold (DIBH) could reduce esophageal dose by spinal stereotactic body radiotherapy (SBRT). In 25 patients with thoracic DIBH CT, the vertebral-esophageal distance significantly increased at T2-T9, greatest at Th7 (median 2.1 mm). Simulated SBRT plans showed a strong correlation between distance and esophageal dose, each 1 mm increase reducing 150 cGy. DIBH reduced the esophageal D<sub>0.03 cc</sub> dose by a median of 411 cGy while maintaining positional reproducibility within 2 mm. These findings suggest that DIBH may reduce esophageal dose and warrants further study in patients with prior high-dose esophageal exposure.
Authors
- Tomoki Kitagawa (ORCID: https://orcid.org/0000-0003-1574-1410)
- Takahiro Aoyama (ORCID: https://orcid.org/0000-0002-8423-6509)
- Takeshi Kodaira (ORCID: https://orcid.org/0000-0002-7075-8488)
- Ryota Tomoda
- Shingo Hashimoto
- Hiroyuki Tachibana
- Yutaro Koide
Institutions
- Aichi Cancer Center (JP)
Publication Details
- Journal
- Technical Innovations & Patient Support in Radiation Oncology
- Published
- 2025-11-29
- DOI
- https://doi.org/10.1016/j.tipsro.2025.100358
- Primary Topic
- Advanced Radiotherapy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00