Method for improving prostate tumor MRI (Magnetic Resonance Imaging) image identification rate based on CAD (Computer-Aided Diagnosis) system
A prostate tumor and image recognition technology, which is applied in the field of improving the recognition rate of prostate tumor MRI images based on CAD system, can solve the problems of singleness, low reliability of recognition results, and high false positive rate, so as to eliminate influence and reduce redundancy , the effect of improving the recognition rate
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[0039] The software and hardware environment involved in the present invention are as follows:
[0040] Software environment: windows XP operating system, MATLAB 7.0NN Toolbox, efilm 3.4
[0041] Hardware environment: 2G memory, 320G hard disk, M320-AMD processor
[0042] Input: 1) ROI image X of MRI prostate tumor i , i=1,2,...,180
[0043] 2) The number of sample categories n=2;
[0044] Output: neural network recognition accuracy before and after feature transformation under four training algorithms
[0045] step:
[0046]
[0047]
[0048]
[0049] Specific steps are as follows:
[0050] (1) collecting MRI images of prostate patients;
[0051] The ROI regions in 180 prostate MRI images (including 90 prostate cancer and 90 benign prostatic hyperplasia) with distinguishing value were extracted, figure 1 The ROI area of the MRI image of one case of prostate cancer is given in , figure 2 The ROI area of MRI images of one case of prostatic hyperplasia is g...
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