Deep Inspiration Breath Hold (DIBH) is a technique for left-sided breast cancer patients that reduces the potential impact of radiation on the heart.

External beam radiation therapy is a type of radiation therapy that uses one or more beams to deliver high energy x-rays from outside the body into the cancerous tumour in the body.

Intensity modulated radiation therapy [IMRT] is high precision radiation therapy that delivers high dose radiation to cancerous tumours, while limiting impact on healthy surrounding tissue.