2 results about "Reduced dose" patented technology

A method in which: (a) a patient is positioned in an X-ray device; (b) a 3D scout image with reduced dose and with a predefined volume size and a predefined center of rotation is created; (c) on the 3D scout image, a practitioner marks the tooth (d) a software determines, based on the position of the enveloping geometry, the available centers of rotation and calculates, based on reference points of the enveloping geometry, the imaging positions; (e) based on the imaging positions, a center of rotation is selected; (f) the previously determined aperture positions and the detector regions to be irradiated are transmitted; (g) the high-resolution image is reconstructed and the newly acquired high-resolution information is superimposed in the 3D scout image; (h) the practitioner receives the 3D scout image for diagnosis and further use.

This invention discloses an adhesive tissue equivalent compensation membrane for breast cancer radiotherapy, relating to the field of radiotherapy compensation membrane technology. It includes: an adhesive layer on one side that directly contacts the skin; a variable tissue equivalent layer; and an outer protective layer for providing mechanical protection while also ensuring compatibility with radiotherapy equipment. The proposed zoned adjustable microchannel / microcavity filling mechanism can locally adjust the relative electron density and water equivalent according to the radiation path, thereby achieving point-to-point spatial matching with the equivalent tissue thickness required by the radiotherapy plan. This mechanism fundamentally reduces dose perturbations caused by surface geometry irregularities or tissue inhomogeneities, allowing for more reliable reproduction of the dose distribution in the treatment plan during actual irradiation, and reducing the risk of underdose or overdose in near-surface and interface regions.