What is an important aspect of brachytherapy interstitial implants?

The placement of applicators in the tumor volume before source insertion is crucial in brachytherapy interstitial implants. This step ensures that the radioactive sources are correctly positioned within or near the tumor tissue to deliver a concentrated dose of radiation directly to the target area while minimizing exposure to surrounding healthy tissues. Accurate placement is essential for maximizing treatment effectiveness and optimizing the therapeutic ratio.

In brachytherapy, applicators may vary in design and can facilitate the housing and secure positioning of radioactive sources. Their pre-insertion placement allows for precise dosimetric calculations and planning, contributing significantly to treatment accuracy and safety.

While other aspects like the involvement of multiple source types and the use of imaging techniques are important components of brachytherapy, the specific action of placing applicators in the tumor volume is foundational for the procedure’s efficacy.