Computer-Assisted Image Analysis of Liver Collagen:Relationship to Ishak Scoring and Hepatic VenousPressure Gradient

Vincenza Calvaruso, Dominic Yu, Pinelopi Manousou, Ilias Xirouchakis, Sergio Maimone, Vincenza Calvaruso, Maria Pleguezuelo, Frederica Grillo, Andrew Kenneth Burroughs, James O'Beirne, David Patch, Richard Standish, Gioacchino Leandro, Amar Paul Dhillon, Gian Piero Guerrini

Risultato della ricerca: Articlepeer review

191 Citazioni (Scopus)


Histopathological scoring of disease stage uses descriptive categories without measuring the amount of fibrosis. Collagen, the major component of fibrous tissue, can be quantified by computer-assisted digital image analysis (DIA) using histological sections. We determined relationships between DIA, Ishak stage, and hepatic venous pressure gradient (HVPG) reflecting severity of fibrosis. One hundred fifteen patients with hepatitis C virus (HCV) who had undergone transplantation had 250 consecutive transjugular liver biopsies combined with HVPG (median length, 22 mm; median total portal tracts, 12), evaluated using the Ishak system and stained with Sirus red for DIA. Liver collagen was expressed as collagen proportionate area (CPA). Median CPA was 6% (0.2-45), correlating with Ishak stage (stage 6 range, 13%-45%), and with HVPG (r = 0.62; P < 0.001). Median CPA was 4.1% when HVPG was less than 6 mm Hg and 13.8% when HVPG was 6 mm Hg or more (P < 0.0001) and 6% when HVPG was less than 10 mm Hg and 17.3% when HVPG was 10 mm Hg or higher (P < 0.0001). Only CPA, not Ishak stage/grade, was independently associated by logistic regression, with HVPG of 6 mm Hg or more [odds ratio, 1.206; 95% confidence interval (CI), 1.094-1.331; P < 0.001], or HVPG of 10 mm Hg or more (odds ratio, 1.105; 95% CI, 1.026-1.191; P = 0.009). CPA increased by 50% (3.6%) compared with 20% in HVPG (1 mm Hg) in 38 patients with repeated biopsies. CONCLUSION: CPA assessed by DIA correlated with Ishak stage scores and HVPG measured contemporaneously. CPA was a better histological correlate with HVPG than Ishak stage, had a greater numerical change when HVPG was low, and resulted in further quantitation of fibrosis in cirrhosis.
Lingua originaleEnglish
Numero di pagine9
Stato di pubblicazionePublished - 2009

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.2700.2721???


Entra nei temi di ricerca di 'Computer-Assisted Image Analysis of Liver Collagen:Relationship to Ishak Scoring and Hepatic VenousPressure Gradient'. Insieme formano una fingerprint unica.

Cita questo