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Bellyboard device reduces small bowel displacement.

K Bertelrud¹, M Mehta, T Shanahan

¹Mercy Regional Medical Cancer Center, Janesville, WI 53545.

Radiologic Technology

|March 1, 1991

Summary

A novel device excludes the small bowel during pelvic radiation therapy, improving cancer treatment. This reduces radiation enteritis, a common side effect that limits radiation doses for pelvic malignancies.

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Area of Science:

Oncology
Medical Devices
Radiation Oncology

Background:

Pelvic malignancies are difficult to cure due to radiation dose limits.
Radiation enteritis, an inflammation of the small intestine, restricts radiation doses to 45-50 Gy.
Effective treatment of pelvic cancers requires higher radiation doses.

Purpose of the Study:

To design and fabricate a device for excluding the small bowel from the pelvic radiation field.
To evaluate the efficacy of this device in reducing small bowel volume within radiation portals.
To assess the potential for increasing radiation doses for pelvic cancer patients.

Main Methods:

Design and fabrication of a novel small bowel exclusion device.
Prospective dose-volume analysis.

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Inclusion of 30 patients with pelvic malignancies.

Main Results:

A 66% reduction in the volume of small bowel within the radiation portals was achieved.
The device successfully excluded the small bowel from the targeted radiation area.
Demonstrated feasibility of reducing radiation exposure to the small intestine.

Conclusions:

The developed device effectively reduces small bowel volume during pelvic radiation therapy.
This approach has the potential to enable higher radiation doses, improving cure rates for pelvic malignancies.
Further studies are warranted to confirm the clinical benefits and long-term outcomes.