Spatial dimension determination device for determining a spatial dimension of a target element within an object

A spatial dimension determination method for determining a real spatial dimension of a target element within a living being, the spatial dimension determination method comprising:

• providing movement parameters of a robot describing a movement by the robot of an introduction element within the living being by defining a sequence of real positions of the introduction element moving within the living being;
• providing a plurality of images generated by x-ray imaging system respectively showing the introduction element at the real positions of the sequence of real positions within the living being during the movement of the introduction element;
• determining a real dimension of a physical length covered by the sequence of real positions of the introduction element indicated by the movement parameters;
• determining an image dimension of an image length covered by the sequence of real positions of the introduction element indicated by the plurality of images;
• determining a dimensional ratio between the real dimension and the image dimension;
• providing a target image showing the target element within the living being;
• and
• determining the real spatial dimension of the target element by multiplying an image dimension of the target element in the target image by the determined dimensional ratio.

A non-transitory computer readable medium storing a spatial dimension determination computer program containing instructions for determining a real spatial dimension of a target element within a living being, the instructions, when executed by a computer processing unit, causing the computer processing unit to perform a method comprising:

• providing movement parameters of a robot describing a movement by the robot of an introduction element within the living being by defining a sequence of real positions of the introduction element moving within the living being;
• providing a plurality of images generated by an x-ray imaging system respectively showing the introduction element at the real positions of the sequence of real positions during the movement of the introduction element;
• determining a real dimension of a physical length covered by the sequence of real positions of the introduction element indicated by the movement parameters;
• determining an image dimension of an image length covered by the sequence of real positions of the introduction element indicated by the plurality of images;
• determining a dimensional ratio between the real dimension and the image dimension;
• providing a target image showing the target element within the living being;
• and
• determining the real spatial dimension of the target element within the living being by multiplying an image dimension of the target element in the target image by the determined dimensional ratio.