Method for segmenting a myocardial wall and device for detecting a coronary artery with pathological changes

A device for segmenting a myocardial wall in an image, comprising:

• an image recording device that:
• records a first data record of the myocardial wall in a cardiac phase with a first radiation intensity, and
• records a second data record of the myocardial wall in the cardiac phase with a second radiation intensity lower than the first radiation intensity;
• and
• a computer that:
• reconstructs the myocardial wall in the image from the first data record and the second data record,
• segments an inside and an outside of the myocardial wall from the reconstruction of the first data record, and
• segments tissue interspersing the myocardial wall between the inside and the outside of the myocardial wall from the reconstruction of the second data record.

A device for detecting a pathological change of a coronary artery of a patient, comprising:

• an image recording device that:
• records a first data record of a myocardial wall in a cardiac phase with a first radiation intensity, and
• records a second data record of the myocardial wall in the cardiac phase with a second radiation intensity lower than the first radiation intensity;
• and
• a computer that:
• reconstructs the myocardial wall from the first data record and the second data record,
• segments an inside and an outside of the myocardial wall from the reconstruction of the first data record, and
• segments tissue interspersing the myocardial wall between the inside and the outside of the myocardial wall from the reconstruction of the second data record,
• assigns the coronary artery to the segment,
• generates a movement profile for the segment of the myocardial wall over the cardiac phase, and
• detects the pathological change of the coronary artery based on the movement profile.