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Information about hepatic perfusion is used in clinical liver disease diagnosis. An image analysis system can help physicians make efficient and accurate diagnosis. The objective of this study is to propose an image analysis method for the quantification of the hepatic perfusion based on contrast-enhanced ultrasound imaging (CEUI). The proposed method contains frame selection, image registration, digital subtraction and grey-scale calculation. Then, by processing an image sequence, adoi:10.4236/jbise.2008.12019 fatcat:npbfgoygozfavp7stnuoqhwpna