When bolus will be used for radiation therapy?
As we know, not all cancers reside deep inside the body. When the patients have cancers close to the surface, such as tumors of the head and neck or ear cancers, radiation oncologists have to use synthetic materials that add thickness to the treatment tumor.
In radiation therapy, bolus is a material which has properties equivalent to tissue when irradiated. It is widely used in practice to reduce or alter dosing for targeted radiation therapy.
Types of Bolus Material
The bolus materials should be tissue equivalent, sufficiently flexible to fit the patient surface, durable and cost effective. There are several kinds of bolus materials widely used in RT clinics, such as: gel bolus, thermoplastic sheets, blue water phantoms and 3D customized bolus etc.
Klarity Gel Bolus ( Skinless) is widely used in clinical practice and commercially available.
It is flexible build-up tissue equivalents designed to increase the surface dose which offers excellent conformity to body contours.
Characteristics of Klarity Gel bolus
• Tissue equivalent, sufficiently flexible to conform to the patient surface.
• Smooth and sticky surface for excellent conformity.
• Maintains uniformity to thickness and easy to cut into any shape for various clinical demands
• Approved for human contact
To optimally support dose build-up for varying surface contours and target volumes, several sizes are available.
KSR-3005 30 x 30 x 0.5 cm
KSR-3010 30 x 30 x 1 cm
KSR-3015 30 x 30 x 1.5 cm
KSR-3020 30 x 30 x 2 cm
