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Movement and resting phases determining method for e.g. beating heart of patient, involves closing equivalent and rectified line radiations based on angle position of x-ray tubes to relative movement or resting of heart between time points
Movement and resting phases determining method for e.g. beating heart of patient, involves closing equivalent and rectified line radiations based on angle position of x-ray tubes to relative movement or resting of heart between time points
The method involves scanning a patient (7) by x-ray tubes (2, 4). Absorption of the scanned radiation is measured and compared by a detector at consecutive times on a radiation path when the radiation is passed via the patient. Line radiations are radiated at certain rotation angles by the tubes of time points, respectively. A set of equivalent and rectified line radiations is closed based on an angle position of the tubes to a relative movement or relative resting of a heart between the time points by comparing different absorption values. An independent claim is also included for a computer tomography system for producing tomographical representations of an examination object.
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