X-ray controlled contrast agent injection

X-ray controlled contrast agent injection

  • CN 104,869,903 B
  • Filed: 12/13/2013
  • Issued: 08/28/2020
  • Est. Priority Date: 12/19/2012
  • Status: Active Grant
First Claim
Patent Images

1. An imaging system, comprising:

  • -an imager (100);

    -a closed loop feedback controller for a power injector comprising;

    an input port (IN) for receiving i) a current power injector setting and ii) a current image or images of a subject acquired by the imager while fluid is flowing or residing IN a region of interest of the subject and acquired by the power injector during or after administration of contrast agent to the fluid at a current contrast agent flow rate according to the current power injector setting;

    -a fluid property determiner (FLD, FPD) configured to determine a physical property of the fluid by using intra-image information of the current image or images;

    -a power injector setting determiner (PD) configured to determine a desired contrast agent flow rate based on the determined current fluid property;

    -an adjustment back end (OUT) configured to interact with the power injector for readjusting the power injector settings to achieve the desired contrast media flow rate, thereby controlling the effect of the contrast media flow rate on the fluid properties.

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