Audio-visual navigation reduces treatment time in deep-inspiration breath hold radiotherapy

Biomedical Papers

Martin Dolezel¹  Zuzana Vlachova¹  Tereza Kohlova²  Igor Hartmann³  Karel Odrazka⁴  Jaroslav Vanasek⁴ 

[1] Department of Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Czech Republic;Department of Radiotherapy and Oncology, Charles University and Královské Vinohrady University Hospital, Prague, Czech Republic;Department of Urology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Czech Republic;Oncology Centre, Multiscan and Pardubice Regional Hospital, Pardubice, Czech Republic;

关键词: deep-inspiration breath hold;    breast cancer;    audio-visual navigation;    treatment time;   

DOI  :  10.5507/bp.2019.051

来源: DOAJ

【 摘 要 】

Aims: The purpose of this study was to compare the treatment times for deep-inspiration breath hold with and without audio-visual (A-V) navigation. Methods: We measured the real treatment time in 60 patients with breast cancer undergoing postoperative radiotherapy. Thirty consecutive patients were treated without deep-inspiration breath hold (DIBH) and another 30 patients using deep-inspiration breath hold (10 patients with DIBH only, 10 patients with DIBH using visual feedback and 10 patients with DIBH using visual feedback following breath training). The treatment time was relativized to number of fields and 100 monitor units (MU). The independent t-test was used to analyse differences between cohorts. Results: The mean treatment time for patients without DIBH was 46.5 seconds per field and 90.9 seconds per 100 MU, for DIBH only 92.3 and 170.2 seconds, for DIBH with audio-visual navigation 68.1 and 133.8 seconds, and for DIBH with A-V feedback including breath training 66.1 and 132.5 seconds. The treatment times for patients treated using DIBH with visual navigation were significantly shorter in comparison with patients without visual feedback. We were not able to prove any significant benefit for breath training in terms of reducing the treatment time. Conclusion: Audio-visual navigation enables to significantly reduce the treatment time in comparison with DIBH without A-V feedback.

【 授权许可】

Unknown