LEARNING-BASED SPINE VERTEBRA LOCALIZATION AND SEGMENTATION IN 3D CT

    公开(公告)号:US20210150724A1

    公开(公告)日:2021-05-20

    申请号:US17114360

    申请日:2020-12-07

    IPC分类号: G06T7/11 G06T7/162 G06T7/143

    摘要: Described herein is a novel method and system for segmentation of the spine using 3D volumetric data. In embodiments, a method includes an extracting step, localization step, and segmentation step. The extracting step comprises detecting the spine centerline and the spine canal centerline. The localization step comprises localizing the vertebra and intervertebral disc centers. Background and foreground constraints are created for each vertebra digit. Segmentation is performed for each vertebra digit and based on the hard constraints.

    REGISTRATION OF FLUOROSCOPIC IMAGES OF THE CHEST AND CORRESPONDING 3D IMAGE DATA BASED ON THE RIBS AND SPINE
    4.
    发明申请
    REGISTRATION OF FLUOROSCOPIC IMAGES OF THE CHEST AND CORRESPONDING 3D IMAGE DATA BASED ON THE RIBS AND SPINE 有权
    根据RIBS和脊髓注册了相关的3D图像数据

    公开(公告)号:US20160180529A1

    公开(公告)日:2016-06-23

    申请号:US14910656

    申请日:2014-08-07

    IPC分类号: G06T7/00

    摘要: The present invention is a method to register 3D image data with fluoroscopic images of the chest of a patient. The ribs and spine, which are visible in the fluoroscopic images, are analyzed and a rib signature or cost map is generated. The rib signature or cost map is matched to corresponding structures of the 3D image data of the patient. Registration is evaluated by computing a difference between the fluoroscopic image and a virtual fluoroscopic projected image of the 3D data. Related systems are also described.

    摘要翻译: 本发明是一种利用患者胸部的荧光透视图像来记录3D图像数据的方法。 分析在透视图像中可见的肋骨和脊柱,并生成肋标记或成本图。 肋标志或成本图与患者的3D图像数据的相应结构匹配。 通过计算透视图像和3D数据的虚拟透视投影图像之间的差异来评估注册。 还描述了相关系统。

    ELECTROSURGICAL ACCESS SHEATH
    6.
    发明公开

    公开(公告)号:US20240065759A1

    公开(公告)日:2024-02-29

    申请号:US18502289

    申请日:2023-11-06

    IPC分类号: A61B18/14 A61B90/00

    摘要: An electrosurgical access catheter for assisting a physician perform an ancillary surgical procedure on a region of interest (ROI) in a patient has a tubular shaped elongate shaft and a ring-shaped active electrode located at the distal end. A passageway extends from the proximal section to the distal end of the shaft, and through the ring-shaped active electrode. The proximal section of the elongate shaft is detachably coupled to an electrosurgical controller such that the ring-shaped active electrode is operable with the electrosurgical controller and a dispersive electrode to electrosurgically make a circular-shaped incision through a tissue wall, carving a cylindrical-shaped tissue plug as the ring-shaped active electrode is advanced through the wall. The access sheath is advanced through the surgically created opening and without further dilation of the opening. The invention has particular applicability to the lung, and minimally invasive bronchoscopic procedures. Related methods are also described.