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  • Title: How can we enhance the performance of liver stiffness measurement using FibroScan in diagnosing liver cirrhosis in patients with chronic hepatitis B?
    Author: Kim SU, Kim DY, Park JY, Lee JH, Ahn SH, Kim JK, Paik YH, Lee KS, Chon CY, Choi EH, Song KJ, Park YN, Han KH.
    Journal: J Clin Gastroenterol; 2010 Jan; 44(1):66-71. PubMed ID: 19609218.
    Abstract:
    GOAL: This study aimed to enhance the diagnostic accuracy by defining different cutoff liver stiffness measurement (LSM) values according to alanine aminotransferase (ALT) level and combining LSM with noninvasive models in patients with chronic hepatitis B (CHB). BACKGROUND: Several studies have indicated that ALT influences LSM using FibroScan. STUDY: The study prospectively enrolled 200 patients (143 men, mean age 45.4 y) between June 2007 and November 2008 who had been diagnosed with CHB and underwent both liver biopsy and LSM on the same day. RESULTS: The area under the receiver operating characteristic curves (AUROC) of LSM for predicting cirrhosis in patients with ALT < or = upper limit of normal (ULN) was higher than that of all patients or those with ALT >ULN and < or = 2x ULN (AUROC=0.884 vs. 0.849 and 0.867). The cutoff LSM values for > or = F2, > or = F3, and F4 were 6.0, 7.5, and 10.1 kPa, respectively, in patients with ALT < or = ULN, whereas they were 8.9, 11.0, and 15.5 kPa, respectively, in those with ALT >ULN and < or = 2x ULN. The combination of LSM and the age-spleen-platelet ratio index performed the best at predicting cirrhosis, regardless of ALT level (AUROC=0.917 in patients with ALT < or = ULN, 0.909 in those with ALT < or = 2x ULN, and 0.894 in all patients). CONCLUSIONS: Different cutoff LSM values according to ALT level and combination with age-spleen-platelet ratio index can enhance the performance of LSM in CHB, regardless of ALT level.
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