This technology is an optical computed tomography (CT) scanner that produces fast and accurate 3D dosimeter readings for radiotherapy dose verification.
The increasing sophistication of radiotherapies requires fast and accurate dosimetry. Current methods to read 3D dosimeters rely upon optical CT scanners that either utilize a single laser beam and a series of mirrors and lenses that require long scan times to produce an accurate image, or broad parallel-beams with telecentric lenses that produce fast, but inaccurate scans. Although optical CT is the most reliable technique for measuring 3D dose distribution, the limitations associated with current CT scanners are incompatible with clinical applications that require efficient and precise measurements.
This technology is an optical, broad parallel-beam CT scanner that utilizes an optical fiber taper in place of telecentric lenses to produce high-resolution CT images in a time-efficient manner. The optical fiber taper collimates radiation and reduces light scatter during the CT scan to minimize inaccuracies in the resulting image, which is then transferred and resized at high resolution with minimal distortion. The resulting images can then be reconstructed into a 3D radiation dose distribution to verify radiotherapy dosing. This results in images that have comparable or better quality to first-generation scanners with much faster scanning times of less than 20 minutes.
Patent Pending
IR CU20058
Licensing Contact: Sara Gusik