SYSTEMS AND METHODS FOR ERROR CHECKING IN RADIOTHERAPY TREATMENT REPLANNING

    公开(公告)号:US20220309662A1

    公开(公告)日:2022-09-29

    申请号:US17805683

    申请日:2022-06-06

    摘要: A method for adaptive treatment planning is provided. The method may include obtaining a planning image volume of a subject, a treatment image volume of the subject, and a first treatment plan related to the planning image volume of the subject, each of the planning image volume and the treatment image volume including an ROI of the subject. The method may also include registering the planning image volume and the treatment image volume, and determining a first contour of the ROI in the registered planning image volume and a second contour of the ROI in the registered treatment image volume. The method may also include evaluating whether an error exists in at least one of the registration or the contour determination based on the first contour and the second contour, and determining a second treatment plan with respect to the treatment image volume based on the evaluation result.

    SYSTEMS AND METHODS FOR ONBOARD DIMENSIONING

    公开(公告)号:US20220301215A1

    公开(公告)日:2022-09-22

    申请号:US17689214

    申请日:2022-03-08

    IPC分类号: G06T7/62 G06T7/70

    摘要: The present disclosure provides an onboard object dimensioning system for a vehicle, such as a lift truck. The vehicle may have one or more sensors (e.g., a radar system, an acoustic sensor, an image capture system, LIDAR, microwave, etc.) to generate and transmit a signal toward an object on the vehicle, which is received as a feedback signal corresponding to a reflection from one or more surfaces of the object. Control circuitry receives data from the sensors including signal characteristics of the feedback signal. The data is converted into multiple dimensions corresponding to the one or more surfaces of the object, which are employed to determine a shape, volume, orientation, or area of the one or more surfaces of the object corresponding to the first and second dimensions.

    METHOD AND APPARATUS FOR DYNAMICALLY ASSISTING A PRACTITIONER IN PREPARING A DENTAL BONE GRAFTING OPERATION

    公开(公告)号:US20220296343A1

    公开(公告)日:2022-09-22

    申请号:US17603664

    申请日:2020-04-15

    摘要: At least one embodiment of a method for dynamically assisting a practitioner in preparing a dental bone grafting operation, the method comprising:—providing an image representing a 3D volume of a portion of a jaw member where bone grafting is to be carried out;—adding to the image a representation of a 3D virtual object representing dental bone graft material;—estimating a value of a geometric characteristic relating to the bone graft material to be used, as a function of geometric characteristics of the represented 3D virtual object;—enabling a user to modify the representation of the 3D virtual object; and—upon modification of the representation of the 3D virtual object, updating the estimated value of the geometric characteristic, according to the modification of the representation of the 3D virtual object, the estimated value assisting the practitioner in determining the dental bone graft material needed.

    MEDICAL IMAGE PROCESSING APPARATUS
    66.
    发明申请

    公开(公告)号:US20220296106A1

    公开(公告)日:2022-09-22

    申请号:US17830799

    申请日:2022-06-02

    发明人: Takuma IGARASHI

    摘要: According to one embodiment, a medical image processing apparatus includes first specifier, second specifier, determiner and display controller. First specifier collates an ischemic region calculated from a blood vessel visualized into a three-dimensional image in a plurality of phases with a dominating region of the blood vessel, and specifies a culprit vessel in the ischemic region. Second specifier specifies a culprit stenosis in the culprit vessel based on a pressure index calculated from the blood vessel. Determiner determines a connection position to connect a bypass vessel that makes a detour around the culprit stenosis. Display controller displays the determined connection position on a display.

    Image analysis for scoring motion of a heart wall

    公开(公告)号:US11450000B2

    公开(公告)日:2022-09-20

    申请号:US16772550

    申请日:2018-12-12

    摘要: The present disclosure relates to a system (100) for scoring motion of a heart wall (214, 218). The system (100) includes an imaging system (102) operable to acquire a first image (230) of the heart wall (214, 218) at a first time and a second image (240) of the heart wall (214, 218) at a second time. A processor (108) is provided to identify a first set of contour data in the first image (230); and a second set of contour data in the second image (240). The processor (108) defines at least one element (Ei) representing a cardiac cyclic change in a section of the heart wall (214, 218) in dependence on the first and second sets of contour data. Each element (Ei) is analysed to generate at least one metric which is compared with a reference data model to score the motion of the corresponding section of the heart wall (214, 218). The disclosure also relates to a method of scoring motion of a heart wall (214, 218); and a non-transitory computer-readable medium.

    MRI post-processing systems and methods

    公开(公告)号:US11443427B2

    公开(公告)日:2022-09-13

    申请号:US17455677

    申请日:2021-11-19

    申请人: MErunova Pty Ltd

    摘要: In some embodiments, spinal disc degeneracy is diagnosed according to a decay variance map generated by determining a variance in T2 decay over time within each pixel or pixel subset of an MRI image. A region of interest may be defined as including nucleus pulposus (NP) and annulus fibrosus (AF) areas, and excluding cartilaginous endplate (EP) areas of a disc. A decay variance for a pixel or groups of pixels is calculated by determining ratios between consecutive intensity values of the T2 signal, determining differences between consecutive ratios, and summing the absolute values of the determined differences. Decay variance mapping may be used to diagnose degeneracy in other tissues, such as in joints.