Method and X-ray system for taking X-ray pictures of an examination object imaged on a digital X-ray detector

A method involving an examination object irradiated by an X-ray beam and imaged onto an active imaging surface of a digital X-ray detector, the method comprising:

• automatically selecting a partial imaging surface reciuired for an X-ray examination of the examination object, with reference to size and position of the partial imaging, the automatic selection of the partial imaging surface being executed exclusively in the X-ray detector, and the automatically selecting of the partial imaging surface including,
• first, transmitting to the detector a focus/stop/X-ray geometry defining the X-ray beam, for irradiating the examination object, and
• subsequently calculating, by a calculation unit integrated into the detector, the partial imaging surface for the examination, from the focus/stop/X-ray geometry;
• and
• using only the imaging data of the partial imaging surface that are compiled per examination, as a basis for at least one of subsequent evaluation and display of the imaging data.

An X-ray system, comprising:

• a digital X-ray detector including an active imaging surface for X-ray imaging of an examination object irradiated by an X-ray beam, a partial imaging surface of the active imaging surface for an X-ray examination of the respective examination object being selected automatically with reference to size and position of the partial imaging surface, and imaging data, compiled per examination, of the partial imaging surface being used as a basis for at least one of subsequent evaluation and display of the imaging data;
• wherein
• the automatic selection of the active imaging surface is executed exclusively in the X-ray detector and the automatic selection includes,
• first, reading out the entire imaging surface,
• subsequently determining the area covered by the examination object-by use of image processing, and
• selecting the area covered by the examination object as partial imaging surface for the examination.

An X-ray system, comprising:

• a digital X-ray detector including an active imaging surface for X-ray imaging of an examination object irradiated by an X-ray beam;
• means for automatically selecting a partial imaging surface required for an X-ray examination of the respective examination object, with reference to size and position of the partial imaging surface;
• and
• means for using only the imaging data of the partial imaging surface that are compiled per examination, as a basis for at least one of subsequent evaluation and display of the imaging data;
• wherein
• the means for automatically selecting the partial imaging surface is included in the X-ray detector, the automatically selecting of the partial imaging surface including,
• first, reading out the entire imaging surface,
• subsequently determining the area covered by the examination object-by use of image processing, and
• selecting the area covered by the examination object as partial imaging surface for the examination.

An X-ray system, comprising:

• a digital X-ray detector including an active imaging surface for X-ray imaging of an examination object irradiated by an X-ray beam;
• means for automatically selecting a partial imaging surface required for an X-ray examination of the respective examination object, with reference to size and position of the partial imaging surface;
• and
• means for using only the imaging data of the partial imaging surface that are compiled per examination, as a basis for at least one of subsequent evaluation and display of the imaging data;
• wherein
• the means for automatically selecting the partial imaging surface is included in the X-ray detector, and the automatically selecting of the partial imaging surface includes,
• first, transmitting to the detector a focus/stop/X-ray geometry defining the X-ray beam, for irradiating the examination object, and
• subsequently calculating, by a calculation unit integrated into the detector, the partial imaging surface for the examination, from the focus/stop/X-ray geometry.

An X-ray system, comprising:

• a digital X-ray detector including an active imaging surface for X-ray imaging of an examination object irradiated by an X-ray beam, a partial imaging surface of the active imaging surface for an X-ray examination of the respective examination object being selected automatically with reference to size and position of the partial imaging surface, and imaging data, compiled per examination, of the partial imaging surface being used as a basis for at least one of subsequent evaluation and display of the imaging data;
• wherein
• the automatic selection of the active imaging surface is executed exclusively in the X-ray detector, and the automatic selection of the partial imaging surface includes,
• first, transmitting to the detector a focus/stop/X-ray geometry defining the X-ray beam, for irradiating the examination object, and
• subsequently calculating, by a calculation unit integrated into the detector, the partial imaging surface for the examination, from the focus/stop/X-ray geometry.