PMID- 7705185 OWN - NLM STAT- MEDLINE DCOM- 19950511 LR - 20071114 IS - 0196-4763 (Print) IS - 0196-4763 (Linking) VI - 19 IP - 1 DP - 1995 Jan 1 TI - Semiautomated DNA probe mapping using digital imaging microscopy: I. System development. PG - 51-9 AB - Algorithms have been developed to help automate the mapping of DNA sequences along metaphase chromosomes using fluorescence in situ hybridization (FISH). Custom algorithms computationally define chromosome boundaries and compute chromosomal medial axes. A dynamic regional thresholding (DRT) algorithm is described that allows reliable detection of hybridization domains, even when they differ substantially in size and intensity. Chromosomal locations are calculated by determining the fractional location of each hybridization probe along the medial axis of a metaphase chromosome relative to the short arm (FLpter). These algorithms were tested on simulated data and by analysis of the location of probes that had been previously mapped by other techniques. These algorithms allow probes to be mapped rapidly along human chromosomes with a precision of 2-3 Mb. FAU - Mascio, L N AU - Mascio LN AD - Engineering Research Division/Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, Livermore, California, USA. FAU - Verbeek, P W AU - Verbeek PW FAU - Sudar, D AU - Sudar D FAU - Kuo, W L AU - Kuo WL FAU - Gray, J W AU - Gray JW LA - eng GR - HD 17665/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Cytometry JT - Cytometry JID - 8102328 RN - 0 (DNA Probes) SB - IM MH - Algorithms MH - Chromosome Mapping/*methods MH - DNA Probes MH - Image Processing, Computer-Assisted/*methods MH - In Situ Hybridization, Fluorescence/instrumentation/*methods MH - Microscopy, Fluorescence/methods MH - *Software EDAT- 1995/01/01 00:00 MHDA- 1995/01/01 00:01 CRDT- 1995/01/01 00:00 PHST- 1995/01/01 00:00 [pubmed] PHST- 1995/01/01 00:01 [medline] PHST- 1995/01/01 00:00 [entrez] AID - 10.1002/cyto.990190107 [doi] PST - ppublish SO - Cytometry. 1995 Jan 1;19(1):51-9. doi: 10.1002/cyto.990190107.