Location estimation of interventional devices

A system for determining a position of an interventional device within a lumen is provided. The interventional device includes a distal portion within the lumen and a proximal portion outside the lumen, and the system includes a processor. The processor is configured to: receive, from a first system, a first estimated position of a distal portion of the interventional device within the lumen, and receive, from a second system, an estimated displacement of the distal portion of the interventional device within the lumen, the estimated displacement represents movement of a distal portion of the interventional device within the lumen. The processor is further configured to determine a second estimated position of a distal portion of the interventional device within the lumen based on the first estimated position and the estimated displacement. 提供了一种用于确定介入设备在管腔内的位置的系统。所述介入设备包括所述管腔内的远侧部分和所述管腔外的近侧部分，并且所述系统包括处理器。所述处理器被配置为：从第一系统接收所述介入设备的远侧部分在所述管腔内的第一估计位置，并且从第二系统接收所述介入设备的远侧部分在所述管腔内的估计位移，其中，所述估计位移表示所述介入设备的远侧部分在所述管腔内的移动