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3 August 1984 Cardiac Image Analysis Corresponding To Physical Parameters
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A practical analyzing procedure has been developed to evaluate dynamic images with reference to time series data from the same object. A special recording and analyzing system has been contructed, and its validity and an analyzing procedure are demonstrated using actual dynamical cardiac images. Echocardiogram and X-ray TV images were recorded on the video tape simultaneously with physical parameters. These data were fed into the computer and analyzed in reference to each other. Actual experiments were then executed to analyze myocardial ultrasound and X-ray images quantitatively, using subtraction and densitometry techniques. In both images, abnormalities of myocardial perfusion were clearly described by the subtraction image with reference to the ECG signal and the M-mode image, in the case of the echocardiogram. The temporal change of myocardial images was also represented by subtraction, and the details were described by densitometry. These image processing techniques can be a useful tool in evaluating cardiac dynamics in daily practice.
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Takao Akatsuka, Mitsuo Matsuda, Tohoru Takeda, Kenji Kuwako, Yasuro Sugishita, and Masayoshi Akisada "Cardiac Image Analysis Corresponding To Physical Parameters", Proc. SPIE 0515, Medical Images and Icons, (3 August 1984);

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