Study on the application of thermo-optical surface monitoring + X-ray guidance system in DIBH for breast cancer

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The study evaluated the clinical value of thermo-optical surface monitoring combined with X-ray guidance in DIBH radiotherapy for breast cancer.
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Data were collected from 31 female patients who underwent breast-conserving surgery, using CBCT for inter-fraction setup verification.
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Mean setup errors after X-ray correction were not significantly different from zero, indicating effective positioning accuracy.
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Surface monitoring detected mid-treatment drift, which was corrected by X-ray guidance, maintaining values within clinical tolerance.
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The ETD system provided comparable setup accuracy to CBCT with a lower radiation dose, enhancing treatment precision during DIBH.

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