Image analysis – Applications – Biomedical applications
Reexamination Certificate
2003-09-12
2008-10-14
Johns, Andrew W. (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S128000, C382S173000, C382S172000, C382S154000, C358S296000, C358S461000, C600S512000
Reexamination Certificate
active
07436990
ABSTRACT:
According to the present invention, a Fourier transformation is executed on a time-concentration curve for an inflow artery and a time-concentration curve for each tissue on the basis of a dynamically acquired tomogram. An inverse filter is then calculated from the Fourier-transformed time-concentration curve for the inflow artery. The Fourier-transformed time-concentration curve for each tissue is multiplied by the inverse filter to generate a transfer function for the tissue. The thus generated transfer function for each tissue is used to calculate biological function information. Thus, if biological function information on an organ to be analyzed is to be obtained from a tomogram provided by a computer tomograph, very quantitative biological function information can be obtained at a low contrast rate. In particular, it takes only a minimum calculation time to obtain biological function information.
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Aoyagi Masahiko
Miyazaki Osamu
Omi Yasuo
Bitar Nancy
Cooper & Dunham LLP
Hitachi Medical Corporation
Johns Andrew W.
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