Advancements in Cancer Treatment for Moving Organs

With the continuous evolution of radiotherapy, it has become possible to target cancer cells with higher precision and energy, selectively destroying tumors while sparing healthy tissues. But what about cancers located in highly dynamic organs such as the lungs, liver, or stomach?

Significant technological advancements have been made to address this challenge, offering new hope for patients. Below, we outline some of these breakthroughs, empowering the patients to have open conversations with their doctor and feel confident in choosing the treatment that’s right for the patients.

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1. Real-Time Tumor Tracking Systems

This technology tracks the movement of tumors in real time, ensuring accurate radiation delivery to the target. By synchronizing with the patient’s breathing patterns, it allows for precise targeting of tumors that shift with each breath.

2. 4D Imaging Technology

4D imaging integrates time as the fourth dimension, capturing how tumors move due to breathing or other physiological factors. These dynamic models are incorporated into treatment planning, enhancing accuracy.

3. Beam Gating Technology

Beam gating works in tandem with real-time tumor tracking and 4D imaging. The system continuously monitors tumor movement and activates the radiation beam only when the tumor is in the optimal position for treatment. This approach minimizes unnecessary radiation exposure to surrounding healthy tissues, enhancing safety and efficacy.

4. Re-Scanning Technology

Used primarily in proton and carbon ion therapies, re-scanning ensures precision even when tumors shift during treatment. The system monitors the tumor’s movement, recalculates the beam’s direction and intensity as needed, and adjusts in real-time. This process involves multiple “scans” of the tumor during a single treatment session, ensuring complete and accurate coverage of the target area.

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These advancements in technology have significantly broadened the treatment options for cancers in moving organs. By tailoring treatments to each patient’s unique needs, doctors can provide highly effective, personalized care.