Targeting method, targeting device, computer readable medium and program element

A device for targeting a first interventional object to a target point in an object under examination, the device comprising:

• a processor that selects from an imaging device a first two-dimensional image of a three-dimensional data volume representing the object under examination, wherein the first two-dimensional image contains a target point;
• a display that displays an image of the three-dimensional data volume with the target point;
• wherein the processor positions the said image of the three-dimensional data volume by scrolling and/or rotating about the target point center to make a path of approach crossing the target point having a first direction parallel to an actual viewing direction of the said image of the three-dimensional data volume, wherein the processor represents the target point as a three-dimensional object having a distance scale within its image, and wherein the processor combines the three-dimensional data volume with a three-dimensional angiographic volume rendering of the same object under examination;
• a generator that generates a second two-dimensional image out of the three-dimensional data volume, wherein a normal of the plane of the second two-dimensional image is oriented parallel to the first direction and crosses the target point;
• wherein the processor renders the image of the three-dimensional data volume, the three-dimensional structure having a distance scale within its image, and the two-dimensional image under the same perspective, wherein the imaging device is focused on an extension of the path of approach;
• a motor that moves the first interventional object to target the target point in the object under examination according to the path of approach;
• wherein the path of approach avoids perforation of any vessel in the three-dimensional angiographic volume rendering.

A tangible computer readable medium in which a program for targeting a first interventional object to a target point in an object under examination is stored as non-transitory computer data, the program comprising instructions configured to perform a method comprising the following steps:

• receiving in a processor of the targeting device providing a first two-dimensional image from an imaging device of a three-dimensional data volume representing the object under examination;
• determining a target point in the first two-dimensional image;
• operating the processor to display displaying an image of the three-dimensional data volume with the selected target point represented as a three-dimensional structure having a distance scale within its image, wherein the three-dimensional data volume is combined with a three-dimensional angiographic volume rendering of the same object under examination;
• operating the processor to position positioning the said image of the three-dimensional data volume by scrolling and/or rotating about the target point center to make a path of approach crossing the target point having a first direction parallel to an actual viewing direction of the said image of the three-dimensional data volume;
• operating the processor to generate generating a second two-dimensional image out of the three-dimensional data volume wherein a normal of the plane of the second two-dimensional image is oriented parallel to the first direction and crosses the target point;
• operating the processor to render the image of the three-dimensional data volume, the three-dimensional structure having a distance scale within its image, and the two-dimensional image under the same perspective, wherein the imaging device is focused on an extension of the path of approach;
• moving the first interventional object to target the target point in the object under examination according to the path of approach;
• wherein the path of approach avoids perforation of any vessel in the three-dimensional angiographic volume rendering.