Procedure for monitoring contrast agent application in a CT imag

Details Procedure for monitoring contrast agent application in a CT imag Procedure for monitoring contrast agent application in a CT imag

1994-11-09

1995-10-17

Dzierzynski, Paul M.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 8, 378 16, 378901, A61B 603, G01N 23083

Patent

active

054597692

ABSTRACT:
In a CT imaging system a baseline image is acquired prior to the injection of a contrast agent into the subject and a series of monitoring images are acquired which enable the affects of the contrast agent to be observed in real time. Regions in the baseline image may be selected with a cursor and the contrast enhancement amounts in these regions are calculated and displayed in both graphic and numerical form. By observing the changes that occur in the displayed information, the operator can determine the moment to begin the image scan for optimal image contrast.

REFERENCES:
patent: 4477923 (1984-11-01), Baumann et al.
patent: 4672651 (1987-06-01), Horiba et al.
patent: 5018173 (1991-05-01), Komai et al.
patent: 5383231 (1995-01-01), Yamagishi
Fast Digital Recording of X-Ray Dilution Curves: A Preliminary Evaluation, Radiology 145:545-547, Nov. 1982, K. H. Hubener, M.D., et al.
Bolus Geometry and Dynamics after Intravenous Contrast Medium Injection, Radiology 1984; 153:365-368, Claussen, M.D., et al.

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