Breast Cancer Adjuvant Radiotherapy Using Active Breathing Control-Moderate Inspiration Breath-Hold – a Case Report

Česká verzia

Authors: D. Vrána ^1,2; K. Cwiertka ¹; L. Lukešová ¹
Authors place of work: Onkologická klinika LF UP v Olomouci, Olomouc ¹; Oddělení toxikogenomiky, Centrum toxikologie a zdravotní bezpečnosti, Státní zdravotní ústav, Praha ²
Published in the journal: Klin Onkol 2013; 26(2): 143-146
Category: Case Report

Summary

Background:
Chest movements during the breathing cycle represent a significant problem during radiotherapy of target volumes in the chest. There are several methods how to solve this problem.

Case:
We have used Active breathing control-moderate inspiration breath-hold device in the case of adjuvant treatment of breast cancer.

Results:
Comparing the DVH (dose-volume histograms) without ABC the heart dose is V25 = 6,95% = 34 cm³, V30 = 5,36%, V45 = 1,71%, D mean 6,2 Gy, however in the case of using ABC device V25 = 1,96% = 8,77 cm³, V30 = 1,26%, V45 = 0%, D mean = 2,58 Gy. The dose delivered to left lung was in the first case V20 = 31,2%, D mean = 15,9 Gy and with ABC device V20 = 26,99% a D mean 13,6 Gy. Doses deliver to right lung, cord and target volume coverage were similar in both situations.

Conclusion:
According to our experience ABC device represents simple technique how to solve problems with chest movements during radiotherapy.

Key words:
radiotherapy – adjuvant therapy – active breathing control – breast cancer – radiotherapy reproducibility

Zdroje

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