US 7,453,975 B2 · Operating method for an X-ray machine

Abstract

An operating method for an X-ray machine is disclosed for carrying out a preliminary examination by using a contrast agent, in the case of which a number of heartbeats are determined within a time interval between a first instant of a contrast agent administration and a second instant of a maximum in a concentration of the contrast agent. An operating method for the X-ray machine is also disclosed for carrying out a main examination by using a contrast agent, in the case of which the scanning of the examination region is not started until the number of heartbeats coincides with a preset value such that the scanning is performed at a high concentration of the contrast agent inside the examination region, without the need to adapt the value to the heart rate currently present.

Claims16

Dependent claims

An operating method for an X-ray machine for carrying out a preliminary examination, the method comprising:

acquiring, at consecutive instants, attenuation values at a scanning position as a measure of concentration of a contrast agent propagating in the body of a patient;
and
determining, for a main examination that is to be carried out, a number of heartbeats of the patient as measured variable for determining a starting instant of a scan, this being done within a time interval defined by a first instant of a contrast agent administration and a second instant of a local maximum in the acquired attenuation values.

An operating method for an X-ray machine for carrying out a main examination, comprising:

scanning an examination region of a patient is scanned by way a recording system of the X-ray machine, by using a contrast agent;
determining a number of heartbeats of the patient from a first instant of a contrast agent administration;
and
undertaking a continuous comparison between the determined number and a preset value, the scanning of the examination region not being started until the number of heartbeats coincides with the preset value such that the scanning is performed at a high concentration of the contrast agent inside the examination region.

1 more element

Dependencies are inferred from the claim text.

Operating method for an X-ray machine

Life of this patent

Operating method for an X-ray machine

Life of this patent

Abstract

Claims16