Motion control method and motion control module, image processing actuation method and image processing actuation module

An image processing actuation method for actuating an image processing system of a computed tomography system in which at least one of raw image data acquired by the computed tomography system and image data of an examination object derived therefrom are processed, the image processing actuation method comprising:

• recording motion data connected to a relative scan feed motion of an object bearing device toward a scanner unit of a computed tomography system;
• generating a motion profile from the recorded motion data;
• and
• generating image processing control signals from the motion profile, the image processing control signals being used as a control input for the image processing system, wherein the scan feed motion is controlled by generating scan motion control signals parallel to the scan feed motion to control the scan feed motion, the scan motion control signals being derived from variable input data obtained in parallel during the tomography scan, the variable input data including motion signals which represent the object motion cycle determined with aid of an electrocardiogram, wherein speed of the scan feed motion is reduced upon an extrasystole being detected.

A motion control module for controlling a relative scan feed motion of an object bearing device toward a scanner unit of a computed tomography system for performing a helical tomography scan of a heart carrying out a substantially cyclical object motion, the motion control module comprising:

• an input interface for variable input data including motion signals which represent the object motion cycle determined with the aid of an electrocardiogram;
• a control command generation unit designed such that, during operation the control command generation unit derives scan motion control signals for controlling the scan feed motion as a function of the variable input data;
• and
• an output interface for outputting the scan motion control signals to a control device for at least one of the object bearing device and the scanner unit, wherein the motion control module is designed such that the speed of the scan feed motion is reduced upon an extrasystole being detected.

A motion control method for controlling a relative scan feed motion of an object bearing device toward a scanner unit of a computed tomography system during a helical tomography scan of a heart carrying out a substantially cyclical object motion, the motion control method comprising:

• generating scan motion control signals parallel to the scan feed motion to control the scan feed motion, the scan motion control signals being derived from variable input data obtained in parallel during the tomography scan, the variable input data including motion signals which represent the object motion cycle determined with aid of an electrocardiogram;
• and
• detecting whether or not an extrasystole is present;
• and
• reducing speed of the scan feed motion upon an extrasystole being detected.