PMID- 18227722 OWN - NLM STAT- MEDLINE DCOM- 20080710 LR - 20220309 IS - 1541-2016 (Print) IS - 1533-4058 (Linking) VI - 16 IP - 2 DP - 2008 Mar TI - Digital image analysis improves the quality of subjective HER-2 expression scoring in breast cancer. PG - 185-90 LID - 10.1097/PAI.0b013e318059c20c [doi] AB - AIM: To compare HER-2 scoring reproducibility by subjective and digital image analysis (DIA) scores with each other and with fluorescence in situ hybridization (FISH) assessed HER-2 amplification. METHODS: Herceptest-stained Tissue Micro Arrays of 219 breast carcinomas were scored (DAKO protocol) by 3 observers (both independent and as consensus), scored by DIA and both scores were compared with FISH amplification results. RESULTS: Interobserver subjective scores reproducibility was good (kappa 0.82 to 0.86) but therapeutically important 3+/2+discrepancies occurred in 11% to 16% of all 3+ cases. Subjective scores and FISH results differed considerably. Consensus scores by 3 pathologists correlated better with FISH, reducing the number of both Immunohistochemical (IHC) negative/FISH positives and IHC 3+/FISH negatives. DIA scores were well reproducible and correlated better with FISH amplification than did subjective scores. CONCLUSIONS: DIA scores were comparable with consensus scores between 3 expert pathologists, were very well reproducible and performed better in classifying IHC 3+/FISH+ cases than did subjective scores. FAU - Skaland, Ivar AU - Skaland I AD - Department of Pathology, Stavanger University Hospital, Stavanger, The Netherlands. FAU - Ovestad, Irene AU - Ovestad I FAU - Janssen, Emiel A M AU - Janssen EA FAU - Klos, Jan AU - Klos J FAU - Kjellevold, Kjell H AU - Kjellevold KH FAU - Helliesen, Tove AU - Helliesen T FAU - Baak, Jan P A AU - Baak JP LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Appl Immunohistochem Mol Morphol JT - Applied immunohistochemistry & molecular morphology : AIMM JID - 100888796 RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Breast Neoplasms/*chemistry MH - Female MH - Genes, erbB-2 MH - Humans MH - *Image Processing, Computer-Assisted MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Middle Aged MH - Receptor, ErbB-2/*analysis MH - Reproducibility of Results MH - Tissue Array Analysis EDAT- 2008/01/30 09:00 MHDA- 2008/07/11 09:00 CRDT- 2008/01/30 09:00 PHST- 2008/01/30 09:00 [pubmed] PHST- 2008/07/11 09:00 [medline] PHST- 2008/01/30 09:00 [entrez] AID - 10.1097/PAI.0b013e318059c20c [doi] PST - ppublish SO - Appl Immunohistochem Mol Morphol. 2008 Mar;16(2):185-90. doi: 10.1097/PAI.0b013e318059c20c.