Abstract: A method of sequential monoscopic tracking is described. The method includes generating a plurality of projections of an internal target region within a body of a patient, the plurality of projections comprising projection data about a position of an internal target region of the patient. The method further includes generating external positional data about external motion of the body of the patient using one or more external sensors. The method further includes generating, by a processing device, a correlation model between the projection data and the external positional data by fitting the plurality of projections of the internal target region to the external positional data. The method further includes estimating the position of the internal target region at a later time using the correlation model.

Abstract: Imaging apparatuses described herein include a radiation source configured for imaging radiation, a radiation detector positioned to receive radiation from the radiation source, and an image processing system. The image processing system is configured to: receive projection data from the radiation detector, the projection data corresponding to a scan field-of-view (scanFOV), the image being trans-axially truncated; identify a final reconstruction field-of-view (reconFOV) that is larger than the scanFOV; reconstruct an image having a reconstruction field-of-view (reconFOVn), wherein reconFOVn is less than reconFOV; generate a progressive refinement for the image; reproject the image with the progressive refinement thereby generating a virtual scan vscanFOVn; refine the virtual scan vscanFOVn data; and repeat the reconstruction, generation of the progressive refinement, and reprojection for one or more subsequent reconstructions until reconFOV is reached.

Abstract: A radiation delivery system that includes a gantry to extend along one or more axes. The gantry is to provide a continuous rotation. The radiation delivery system includes a linear accelerator (LINAC) coupled to the gantry. The LINAC is to generate a treatment beam. The radiation delivery system includes a rotary joint coupled to the gantry. The rotary joint provides a physical connection from the LINAC to an external system that is positioned off the gantry. The physical connection is to transport at least one of a cooling liquid or air.