Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 21, Issue 41, Pages 11567-11583Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v21.i41.11567
Keywords
Liver; Fibrosis; Cirrhosis; Non-invasive; Serum biomarkers; Ultrasonography; Computerized tomography; Magnetic resonance imaging
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The evaluation and follow up of liver fibrosis and cirrhosis have been traditionally performed by liver biopsy. However, during the last 20 years, it has become evident that this gold-standard is imperfect; even according to its proponents, it is only the best among available methods. Attempts at uncovering non-invasive diagnostic tools have yielded multiple scores, formulae, and imaging modalities. All are better tolerated, safer, more acceptable to the patient, and can be repeated essentially as often as required. Most are much less expensive than liver biopsy. Consequently, their use is growing, and in some countries the number of biopsies performed, at least for routine evaluation of hepatitis B and C, has declined sharply. However, the accuracy and diagnostic value of most, if not all, of these methods remains controversial. In this review for the practicing physician, we analyze established and novel biomarkers and physical techniques. We may be witnessing in recent years the beginning of the end of the first phase for the development of non-invasive markers. Early evidence suggests that they might be at least as good as liver biopsy. Novel experimental markers and imaging techniques could produce a dramatic change in diagnosis in the near future.
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