AIM To assess the effect of long-term oral nucleos(t)ide analogues(NUCs) therapy on liver volume change in patients with suppress hepatitis B virus(HBV)-related liver cirrhosis.METHODS We reviewed the data of na?ve pa...AIM To assess the effect of long-term oral nucleos(t)ide analogues(NUCs) therapy on liver volume change in patients with suppress hepatitis B virus(HBV)-related liver cirrhosis.METHODS We reviewed the data of na?ve patients with HBVrelated liver cirrhosis, who had taken oral NUCs therapy, between 2003 and 2007 at Chonbuk University Hospital. We analyzed two consecutive sets of abdominal computerized tomography scans-one at the time oftreatment initiation and another at the second-year follow-up. Liver volume was calculated by 3-dimensional liver extraction volumetry program.RESULTS A total of 55 patients(34 males) were included. There was 114.3 m L ± 167.8 m L(12.9% ± 17.9%) of increase in liver volume during the two years of NUCs therapy(993.8 m L ± 242.8 m L at baseline vs 1108.1 m L ± 263.3 m L at two-year follow-up, P < 0.001). The ratio of the measured baseline liver volume to the estimated standard liver volume was improved from 70.8% to 78.0%. An increase in liver volume was shown not only in patients with compensated cirrhosis(P = 0.046) but also in those with decompensated cirrhosis(P < 0.001). Significant factors for volume increases were Child-Turcotte-Pugh grade and model for end-stage liver disease score improvement without virological breakthrough. In multiple linear regression analysis, delta albumin and delta alanine aminotransferase levels showed a significant association with the increase in liver volume(P = 0.002 and 0.005, respectively).CONCLUSION Long-term oral NUCs therapy in patients with HBVrelated liver cirrhosis lead to significant increase in liver volume assessed with 3-dimensional liver extraction volumetry program.展开更多
Gray scale grades for color change of dyed fabrics are assessed via image processing technology.Digital images of groups of specimens are obtained,cropped,and saved as JPEG format.Relationships between gray scale grad...Gray scale grades for color change of dyed fabrics are assessed via image processing technology.Digital images of groups of specimens are obtained,cropped,and saved as JPEG format.Relationships between gray scale grades for color change and the corresponding color differences calculated via image processing technology are investigated,compared with those obtained from high accurate computer color matching system.Results show that the new method is acceptable with an accuracy of 92.0% when the grading errors are of not more than one grade.展开更多
After a brief review of existing methods for fabric wetting and wicking measurement,a new numerical approach based on dynamic image acquisition and analysis was proposed to study the liquid wetting and wicking propert...After a brief review of existing methods for fabric wetting and wicking measurement,a new numerical approach based on dynamic image acquisition and analysis was proposed to study the liquid wetting and wicking properties of woven fabrics.A measuring system was first developed to record on-site the images of liquid ascending in fabrics for a certain period of time.The hardware and software platforms and the experimental methods were described,and the image processing and analysis as well as other related algorithms were discussed in detail.The liquid front curves and rising rates in wetting and wicking were eventually obtained towards different fabrics.From liquid wicking curves,relationship between liquid ascending height and liquid ascending time agrees well with the Washburn theory.The data comparison between the numerical measurement and the traditional test proves the reliability of the numerical results.展开更多
文摘AIM To assess the effect of long-term oral nucleos(t)ide analogues(NUCs) therapy on liver volume change in patients with suppress hepatitis B virus(HBV)-related liver cirrhosis.METHODS We reviewed the data of na?ve patients with HBVrelated liver cirrhosis, who had taken oral NUCs therapy, between 2003 and 2007 at Chonbuk University Hospital. We analyzed two consecutive sets of abdominal computerized tomography scans-one at the time oftreatment initiation and another at the second-year follow-up. Liver volume was calculated by 3-dimensional liver extraction volumetry program.RESULTS A total of 55 patients(34 males) were included. There was 114.3 m L ± 167.8 m L(12.9% ± 17.9%) of increase in liver volume during the two years of NUCs therapy(993.8 m L ± 242.8 m L at baseline vs 1108.1 m L ± 263.3 m L at two-year follow-up, P < 0.001). The ratio of the measured baseline liver volume to the estimated standard liver volume was improved from 70.8% to 78.0%. An increase in liver volume was shown not only in patients with compensated cirrhosis(P = 0.046) but also in those with decompensated cirrhosis(P < 0.001). Significant factors for volume increases were Child-Turcotte-Pugh grade and model for end-stage liver disease score improvement without virological breakthrough. In multiple linear regression analysis, delta albumin and delta alanine aminotransferase levels showed a significant association with the increase in liver volume(P = 0.002 and 0.005, respectively).CONCLUSION Long-term oral NUCs therapy in patients with HBVrelated liver cirrhosis lead to significant increase in liver volume assessed with 3-dimensional liver extraction volumetry program.
基金Scientific Research Fund of Yancheng Institute of Technology,China(No. XKY2009029)
文摘Gray scale grades for color change of dyed fabrics are assessed via image processing technology.Digital images of groups of specimens are obtained,cropped,and saved as JPEG format.Relationships between gray scale grades for color change and the corresponding color differences calculated via image processing technology are investigated,compared with those obtained from high accurate computer color matching system.Results show that the new method is acceptable with an accuracy of 92.0% when the grading errors are of not more than one grade.
基金the Research Funds for the Central Universities,China(No.1302-1)The Project Sponsored SRF for ROCS,SEM,China
文摘After a brief review of existing methods for fabric wetting and wicking measurement,a new numerical approach based on dynamic image acquisition and analysis was proposed to study the liquid wetting and wicking properties of woven fabrics.A measuring system was first developed to record on-site the images of liquid ascending in fabrics for a certain period of time.The hardware and software platforms and the experimental methods were described,and the image processing and analysis as well as other related algorithms were discussed in detail.The liquid front curves and rising rates in wetting and wicking were eventually obtained towards different fabrics.From liquid wicking curves,relationship between liquid ascending height and liquid ascending time agrees well with the Washburn theory.The data comparison between the numerical measurement and the traditional test proves the reliability of the numerical results.
