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Updated: Jun 24, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

[An original contention system for hadron therapy].

P Sevret¹, N Magné, C Chargari

¹Département de radiothérapie, institut Gustave-Roussy, 94805 Villejuif, France. nicolas.magne@igr.fr

Cancer Radiotherapie : Journal De La Societe Francaise De Radiotherapie Oncologique

|March 20, 2009

Summary

A new positioning system enables posterior-oblique beams for hadron therapy, overcoming limitations in fixed horizontal beam systems. This innovation improves treatment for children requiring specific beam angles, enhancing patient positioning and care.

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Area of Science:

Medical physics
Radiation oncology
Pediatric oncology

Context:

Fixed horizontal beam hadron therapy centers face limitations in beam angulation.
Treating pediatric patients under anesthesia with posterior-oblique beams is technically challenging.
Existing systems restrict beam angles, impacting treatment precision for certain pediatric cases.

Purpose:

To develop an innovative positioning system for hadron therapy.
To enable treatment with posterior-oblique beams (right or left) in supine position.
To overcome the technical limitations of fixed horizontal beams in pediatric hadron therapy.

Summary:

A novel positioning system has been developed for hadron therapy centers with fixed horizontal beams.
The system facilitates the use of posterior-oblique beams (approx. 40 degrees) from both right and left directions.
It ensures adequate patient positioning, particularly for pediatric patients undergoing treatment under general anesthesia.

Impact:

Enhances treatment capabilities for specialized pediatric cases in hadron therapy.
Improves the precision and feasibility of using oblique beams in radiation oncology.
Expands the application of carbon ion and proton therapy for complex pediatric tumor sites.