Deep inspiration breath-hold setup using x-ray imaging

A non-transitory, computer-readable storage medium having stored thereon computer-executable instructions for a computer program which, when running on at least one processor of at least one computer or when loaded into a memory of at least one computer, causes the at least one computer to:

• acquire first patient image data describing a digital image of a first anatomical body part and a second anatomical body part during a first phase of inspiration and the position of the first anatomical body part and the position of the second anatomical body part during the first phase of inspiration in a first reference system associated with the first image data;
• acquire second patient image data different from the first patient image data describing a digital image of the first anatomical body part during a second phase of inspiration and the position of the first anatomical body part during the second phase of inspiration in a second reference system;
• acquire third patient image data different from the first patient image data and the second patient image data describing a digital image of the second anatomical body part during a third phase of inspiration and the position of the second anatomical body part during the third phase of inspiration in the second reference system;
• determine position transformation data describing a transformation between the first reference system and the second reference system, the position transformation data being determined based on the first patient image data and the third patient image data;
• and
• determine, based on the first patient image data and the second patient image data and the position transformation data, position difference data describing a relative position between the position of the first anatomical body part during the first phase of inspiration and the position of the first anatomical body part during the second phase of inspiration,
• wherein the first patient image data is three-dimensional image data, the second patient image data is two-dimensional image data, the first anatomical body part is a body part moving during inspiration, the second anatomical body part is a body part not moving during inspiration, the first phase of inspiration is a phase of deep inspiration breath hold at a first point in time, and the second phase of inspiration is a phase of deep inspiration breath hold at a second point in time, which is later than the first point in time.

A system for supporting determining a difference in position of an imaged anatomical body part of a patient, the system comprising:

• a computer having computer-executable instructions that, when executed, configure the computer to:
• acquire first patient image data describing a digital image of a first anatomical body part and a second anatomical body part during a first phase of inspiration and the position of the first anatomical body part and the position of the second anatomical body part during the first phase of inspiration in a first reference system associated with the first image data:
• acquire second patient image data different from the first patient image data describing a digital image of the first anatomical body part during a second phase of inspiration and the position of the first anatomical body part during the second phase of inspiration in a second reference system;
• acquire third patient image data different from the first patient image data and the second patient image data describing a digital image of the second anatomical body part during a third phase of inspiration and the position of the second anatomical body part during the third phase of inspiration in the second reference system;
• determine position transformation data describing a transformation between the first reference system and the second reference system, the position transformation data being determined based on the first patient image data and the third patient image data;
• and
• determine, based on the first patient image data and the second patient image data and the position transformation data, position difference data describing a relative position between the position of the first anatomical body part during the first phase of inspiration and the position of the first anatomical body part during the second phase of inspiration;
• and
• a medical imaging device for acquiring patient image data, the medical imaging device being operably coupled to the computer for transmitting a signal to the computer corresponding to the patient image data, wherein the patient image data is at least one of the first patient image data, the second patient image data and third patient image data.