VGR DIBH Sensor

CLUE has developed a respiratory monitoring band used to measure chest expansion during breathing. The system, consisting of an elastic stretch sensor, a microcontroller, and a BLE-connected mobile app, supports breast cancer patients practicing the Deep Inspiration Breath Hold (DIBH) technique before radiotherapy. CLUE delivered both the electrinc hardware and software as part of a research study exploring improved patient preparation for treatment.

The respiratory monitoring belt described here is designed to measure thoracic expansion during breathing. It is intended to support patients undergoing breast cancer treatment by helping them practice for radiation therapy sessions using a technique known as Deep Inspiration Breath Hold (DIBH). By taking and maintaining a deep breath, patients can physically shift the heart away from the radiation field, significantly reducing cardiac exposure during treatment.

The system consists of an elastic stretch sensor integrated into a wearable band, which transmits real-time sensor data via Bluetooth Low Energy (BLE) to a mobile application. The app processes the incoming signals and visualizes the patient’s breathing patterns, enabling effective training and guidance.

Both the respiratory belt and the mobile application are part of a clinical research study investigating the impact of pre-treatment training on radiation therapy outcomes.