PMID- 10640140 OWN - NLM STAT- MEDLINE DCOM- 20000204 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 116 IP - 2 DP - 2000 Jan 15 TI - A multicenter investigation with D-FISH BCR/ABL1 probes. PG - 97-104 AB - Twenty-eight laboratories evaluated a new fluorescence in situ hybridization (FISH) strategy for chronic myeloid leukemia. In a three-part study, bcr/abl1 D-FISH probes were used to study bone marrow specimens. First, laboratories familiarized themselves with the strategy by applying it to known normal and abnormal specimens. Then, collectively the laboratories studied 20 normal and 20 abnormal specimens blindly and measured workload. Finally, each laboratory and two experts studied six serial dilutions with 98-0% abnormal nuclei. Using the reported normal cutoff of < 1% abnormal nuclei, participants reported no false-negative cases and 15 false-positive cases (1-6.6% abnormal nuclei). Results provided by participants for serial dilutions approximated the expected percentages of abnormal nuclei, but those from the experts exhibited greater precision. The clinical sensitivity, precision, nomenclature, workload, recommendations for training, and quality assurance in methods using D-FISH in clinical practice are discussed. FAU - Dewald, G AU - Dewald G AD - Cytogenetics Laboratory, Mayo Clinic, Rochester, MN 55905, USA. FAU - Stallard, R AU - Stallard R FAU - Alsaadi, A AU - Alsaadi A FAU - Arnold, S AU - Arnold S FAU - Blough, R AU - Blough R FAU - Ceperich, T M AU - Ceperich TM FAU - Rafael Elejalde, B AU - Rafael Elejalde B FAU - Fink, J AU - Fink J FAU - Higgins, J V AU - Higgins JV FAU - Higgins, R R AU - Higgins RR FAU - Hoeltge, G A AU - Hoeltge GA FAU - Hsu, W T AU - Hsu WT FAU - Johnson, E B AU - Johnson EB FAU - Kronberger, D AU - Kronberger D FAU - McCorquodale, D J AU - McCorquodale DJ FAU - Meisner, L F AU - Meisner LF FAU - Micale, M A AU - Micale MA FAU - Oseth, L AU - Oseth L FAU - Payne, J S AU - Payne JS FAU - Schwartz, S AU - Schwartz S FAU - Sheldon, S AU - Sheldon S FAU - Sophian, A AU - Sophian A FAU - Storto, P AU - Storto P FAU - Van Tuinen, P AU - Van Tuinen P FAU - Wenger, G D AU - Wenger GD FAU - Wiktor, A AU - Wiktor A FAU - Willis, L A AU - Willis LA FAU - Yung, J F AU - Yung JF FAU - Zenger-Hain, J AU - Zenger-Hain J LA - eng GR - MCJ-551004-05/PHS HHS/United States PT - Clinical Trial PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (Fluorescent Dyes) RN - EC 2.7.10.2 (Fusion Proteins, bcr-abl) SB - IM MH - Bone Marrow/pathology MH - Clinical Laboratory Techniques/*standards MH - Fluorescent Dyes MH - Fusion Proteins, bcr-abl/*genetics MH - Humans MH - *In Situ Hybridization, Fluorescence/instrumentation/methods/standards MH - Leukemia, Myelogenous, Chronic, BCR-ABL Positive/*diagnosis/genetics/pathology MH - Quality Control MH - Sensitivity and Specificity MH - Workload EDAT- 2000/01/20 00:00 MHDA- 2000/01/20 00:01 CRDT- 2000/01/20 00:00 PHST- 2000/01/20 00:00 [pubmed] PHST- 2000/01/20 00:01 [medline] PHST- 2000/01/20 00:00 [entrez] AID - S016546089900120X [pii] AID - 10.1016/s0165-4608(99)00120-x [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2000 Jan 15;116(2):97-104. doi: 10.1016/s0165-4608(99)00120-x.