Rex Medical, L.p.

Shan-Chien Cheng

Ying-Yi Cheng

Chen-Tai Lin

Sheng-Fang Lin

A surgical navigation method includes obtaining a three-dimensional image; selecting a viewing angle direction; generating one or more two-dimensional images arranged along the viewing angle direction from the three-dimensional image; superimposing the one or more two-dimensional images along the viewing angle direction to form a two-dimensional superimposed image; and guiding a movement of a virtual surgical instrument into the two-dimensional superimposed image.

Method and system for surgical navigation

A method for registering a two-dimensional image data set with a three-dimensional image data set of a body of interest is discloses herein. The method includes the following steps: obtaining a first spatial parameter of a first registered virtual camera, wherein the first registered virtual camera is positioned corresponding to a first two-dimensional image of the two-dimensional image data set; and adjusting a second spatial parameter of the first unregistered virtual camera with the first spatial parameter of the first registered virtual camera, wherein the first unregistered virtual camera is failed to be positioned corresponding to the first two-dimensional image of the two-dimensional image data set.

Method and navigation system for registering two-dimensional image data set with three-dimensional image data set of body of interest

A method for registering a two-dimensional image data set with a three-dimensional image data set of a body of interest is discloses herein. The method includes the following steps: defining a first vector of a registered virtual camera in a coordinate system of the three-dimensional image data et; obtaining a first transformed vector of an unregistered virtual camera in the coordinate system of the three-dimensional image data set by transforming the first vector of the registered virtual camera through at least one transforming matrix; defining a focal point of the unregistered virtual camera at a reference point of the two-dimensional image data set in the coordinate system of the three-dimensional image data set; and repositioning the unregistered virtual camera according to the first transformed vector and the focal point of the unregistered virtual camera.

A method for registering a two-dimensional image data set with a three-dimensional image data set of a body of interest is discloses herein. The method includes the following steps: adjusting a first virtual camera according to a distance parameter calculated corresponding to the two-dimensional image data set and the body of interest; rotating the first virtual camera according to an angle difference between a first vector and a second vector; and rotating the first virtual camera according to an angle which is corresponding to a maximum similarity value of a plurality of similarity values calculated in accordance with reconstructed images of the three-dimensional image data set which includes one generated by the first virtual camera and the others generated by other virtual cameras with different angles or different pixels from the one generated by the first virtual camera and the two-dimensional image data set.

A surgical navigation method includes selecting one or more two-dimensional images from a three-dimensional image. The method further includes adjusting a portion of the two-dimensional images along a viewing direction. The method also includes superimposing the portion of the two-dimensional images along the viewing direction to form a two-dimensional superimposed image. The method further incudes guiding movement of a virtual surgical instrument into the two-dimensional superimposed image.

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Taiwan, Taiwan

Shan-Chien Cheng