Abstract
DIBH technic is a very widespread tool in the hands of physicians and physicists to treat breast cancer. In our work, we present our observations on the reduction of burden of heart of in patients with left breast cancer by comparing the deep inspiration breath hold technique (DIBH) with the normal breathing technique. In our study 41 women with left side breast cancer were irradiated in deep inhale breath hold position. Two irradiation plans were made (DIBH and normal breath taking) every patient, sinn replica comparing dose of heart considering volume of lung. PTV covering was similar in both methods, but use DIBH technique heart dose and LAD dose was less than in normal breath position so late cardiovascular disease possibility is less. Results show that there is critical lung volume, if patient can achieve it, heart dose can be decrease significantly without, decay of PTV coverage.

Keywords: breast cancer radiotherapy, Deep Inhale Breath Hold technique, dose of heart, comparing FB and DIBH techniques.

(Citation: Gastric & Breast Cancer 2022; 17(1): 27-33)

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