Method and system for providing tomographic pictures of a patient by using contrast medium injections

  • US 7,672,711 B2
  • Filed: 08/31/2006
  • Issued: 03/02/2010
  • Est. Priority Date: 09/01/2005
  • Status: Expired due to Fees
First Claim
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1. A method for a tomographic scan, the method comprising:

  • determining, while a patient is injected with a defined test bolus, a temporal concentration profile of a contrast medium in a number of body regions in different scanning planes using a test tomographic scan;

    determining functional parameters, of a prediction model that at least approximates the relationship between a profile of a contrast medium injection and the temporal concentration profile of the contrast medium in the body regions, from the determined temporal concentration profile of the contrast medium in relation to a profile of the test bolus injection;

    determining a desired contrast for the body regions;

    calculating the profile of the contrast medium injection in temporal relationship with the test tomographic scan automatically based on the determined desired contrast, wherein the calculation of the contrast medium injection profile includes defining temporal minimum values for a duration of the desired contrast, the contrast medium injection profile satisfying the temporal minimum values in all of the body regions; and

    producing a picture for each of the body regions based on an examination tomographic scan using the calculated contrast medium injection profile,wherein a start of the examination tomographic scan and a start of the contrast medium injection and the profile thereof occurs automatically in a manner temporally tuned to one another based on the automatically calculated profile of the contrast medium injection, andthe contrast medium injected in the examination tomographic scan is first injected into the body regions, after calculating the profile of the contrast medium injection.

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