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Fig. 6 | BioMedical Engineering OnLine

Fig. 6

From: Prediction of programmed cell death protein 1 in hepatocellular carcinoma patients using radiomics analysis with radiofrequency-based ultrasound multifeature maps

Fig. 6

Schematic diagram of the extraction method of the a 1-D RF data block and b 2-D RF data block of the ROI in ultrasound feature map calculation. c Direct energy attenuation (DEA) ultrasound feature map. d Skewness of spectrum difference (SSD) ultrasound feature map. e Noncentrality parameter S of the Rician distribution (NRD) ultrasound feature map

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BioMedical Engineering OnLine

ISSN: 1475-925X

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