Stereotactic radiation therapy (SRT) offers a valuable alternative to whole brain radiation and stereotactic radiosurgery. Highly precise, fractionated treatments can be delivered only through the use of an accurate, repeatable fixation device. Radionics provides this solution in the GTC Relocatable Head Ring.

The GTC is a non-invasive device that can be repeatedly fixed to the patient's head in precisely the same position. Its utility in the LINAC-based stereotactic radiotherapy has been proven in thousands of clinical cases and documented in numerous publications.

The GTC consists of several components that allow customization for each patient. An impression is taken of the patient's upper dentition, and the mold is then mounted to the head ring. An impression is also taken of the occiput to conform to the shape of the patient's head. A biasing strap holds these two components firmly in place so that precise repositioning can be achieved in each treatment session.

The GTC is compatible with the entire range of Radionics stereotactic radiotherapy hardware. It can be attached to any LINAC couch via the Radionics couch mount, and to various CT or other scanner tables as well. Confirmation of the GTC's positioning is provided by the Depth Helmet.

Pediatric brain tumors require complex treatment plans to minimize negative effect to a child's developing brain. In response to the clinician's needs for a stereotactic radiotherapy solution for pediatrics, Radionics has developed the TLC Pediatric Frame. The TLC utilizes the clinically proven technology of the Radionics GTC Relocatable Head Ring customized for the special needs of the pediatric patient.

Fractionated stereotactic radiotherapy using a LINAC is a valuable treatment option that allows avoidance of critical structures and less irradiation of normal brain tissue. Pediatric cranial anatomy does not lend itself to previously developed technologies for this treatment modality. With the development of the TLC, clinicians now can treat patients previously not considered candidates for stereotactic radiotherapy.

The TLC provides non-invasive repeat fixation with the same accuracy as the GTC for children up to six-years old. It is easy-to-use, incorporating several features to ensure accurate repeat fixation. An adjustable head cup fits the frame securely to the occiput while ear bars provide lateral support. A face mask is also molded around the eyes and nasal bridge for additional repeatable accuracy. The frame has been designed to allow unobstructed access to the patient's airway by the anesthesiologist. The use of the Depth Helmet provides final, quantitative assurance that repeat positioning has been achieved.

Because the TLC is an extension of the familiar technology of the GTC, implementation into an established SRT program is simple. The TLC is compatible with Radionics stereotactic products, both hardware and software.

The Depth Helmet provides quantitative quality assurance for relocatable head rings such as the GTC and TLC. It allows the user to confirm that the head rings have been accurately repositioned on the patient prior to each SRT treatment. A Depth Probe with millimeter scale can be passed into the guide tubes on the helmet so that the distance from the hole to the patient's head can be measured to millimeter accuracy. This measurement data provides a permanent and precise record of positional accuracy for every treatment.

CAUTION: Federal (USA) law restricts this device to sale by or on the order of a physician.

For a demonstration by your local Radionics representative, or to place an order, please contact our Sales department.