Abstract: Method and systems provide a tool to quantify sensory maps of the brain. Cortical surfaces are conformally mapped to a topological disk where local geometry structures are well preserved. Retinotopy data are smoothed on the disk domain to generate a curve that best fits the retinotopy data and eliminates noisy outliers. A Beltrami coefficient map is obtained, which provides an intrinsic conformality measure that is sensitive to local changes on the surface of interest. The Beltrami coefficient map represents a function where the input domain is locations in the visual field and the output is a complex distortion measure at these locations. This function is also invertible. Given the boundaries and the Beltrami map of a flattened cortical region, a corresponding visual field can be reconstructed. The Beltrami coefficient map allows visualization and comparison of retinotopic map properties across subjects in the common visual field space.

Abstract: A template matching is performed on two fluoroscopic images by using a template image prepared in advance and a position corresponding to a high matching score is listed as a candidate for the position of a marker 29. From two lists of the candidates of the position of the marker 29, the lengths of common vertical lines for all combinations are calculated. Then, the position of the marker 29 is detected based on the matching score and the common vertical line. Then, based on the detected position of the marker 29, an amount of a proton beam to be irradiated to a target is controlled. Therefore, a tracking target can be accurately detected even when the conditions for X-ray fluoroscopy is severe, e.g., a thick object.

Abstract: The present invention relates to a system for indicating a position of an interventional device feature (11a) of an interventional device (11) respective an image plane (12) defined by an ultrasound imaging probe (18) of a beamforming ultrasound imaging system (15) in which the position of the interventional device feature (11a) is determined based on ultrasound signals transmitted between the ultrasound imaging probe (18) and an ultrasound transducer (16) attached to the interventional device at a predetermined distance (Lp) from the interventional device feature (11a). An icon providing unit (IPU) provides a first icon (Cde) indicative of a circular zone with a radius corresponding to the predetermined distance (Lp). The first icon (Cde) is displayed in a fused image that includes a reconstructed ultrasound image (RUI) from the beamforming ultrasound imaging system.

Abstract: A surgical system includes a surgical instrument having a shaft and an end effector extending distally from the shaft. The end effector includes a plurality of ultrasound sensors supported about a support ring. The ultrasonic sensors are rotatable between an imaging orientation, wherein, the ultrasound sensors are directed in generally parallel orientations relative to one another for imaging tissue in an imaging mode, and at least one treatment orientation, wherein the ultrasound sensors are directed towards a common focus point for treating tissue in a treatment mode.

Abstract: An ultrasonic probe device includes a sealed housing, a spiral-track plate, a driving arm, an ultrasonic probe and a first shaft. The spiral-track plate, disposed inside the sealed housing, includes a pivotal hole and a spiral groove, in which the spiral groove is extended outward from a center of the spiral-track plate. The driving arm, adjacent to the spiral-track plate, includes a first slot and a rotational shaft hole. The ultrasonic probe includes a follower pillar, a detection side and a connection side opposing to the detection side. The follower pillar, connected with the connection side, penetrates through the first slot and enters the spiral groove. The spiral groove provides a planar motion track to the detection side of the ultrasonic probe. The first shaft orderly penetrates through the sealed housing, the pivotal hole of the spiral-track plate, and the rotational shaft hole of the driving arm.