Investigation of Thermo-Optical Surface Monitoring Combined with X-Ray Guidance in DIBH Radiotherapy for Breast Cancer Management
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By
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Tian Tian
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Jicheng Zhang
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Fei Chen
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Xiaoqin Gong
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Wuyang Yang
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Jian Huang
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Tao You
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July 7, 2026
Clinical Scorecard: Investigation of Thermo-Optical Surface Monitoring Combined with X-Ray Guidance in DIBH Radiotherapy for Breast Cancer Management
At a Glance
| Category | Detail |
|---|
| Condition | Breast Cancer |
| Key Mechanisms | Thermo-optical surface monitoring combined with X-ray guidance for setup accuracy and motion monitoring. |
| Target Population | Female patients with breast cancer post-breast conserving surgery. |
| Care Setting | Radiotherapy treatment centers. |
Key Highlights
- ETD provides setup accuracy comparable to CBCT with lower radiation dose.
- Surface monitoring detected mid-treatment drift, corrected by X-ray guidance.
- Mean setup errors were not significantly different from zero after X-ray correction.
- Treatment duration did not significantly impact intra-fraction deviations.
- Calculated PTV margins were 5.10 mm (lateral), 5.22 mm (longitudinal), and 5.78 mm (vertical).
Guideline-Based Recommendations
Diagnosis
- Breast cancer diagnosis confirmed through clinical evaluation and imaging.
Management
- Utilization of DIBH technique to reduce cardiac and pulmonary radiation exposure.
Monitoring & Follow-up
- Employ thermo-optical surface monitoring and X-ray imaging for real-time tracking.
Risks
- Monitor for radiation-induced heart disease and lung injury.
Patient & Prescribing Data
31 female patients aged 32 to 66 years with breast cancer.
All patients had KPS scores ≥ 90 and normal upper arm mobility.
Clinical Best Practices
- Implement SGRT for positioning and motion monitoring in DIBH radiotherapy.
- Use low-dose imaging techniques for intra-fraction monitoring.
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