PMID- 25595567 OWN - NLM STAT- MEDLINE DCOM- 20160125 LR - 20181113 IS - 1532-0480 (Electronic) IS - 1532-0464 (Print) IS - 1532-0464 (Linking) VI - 54 DP - 2015 Apr TI - CNV-ROC: A cost effective, computer-aided analytical performance evaluator of chromosomal microarrays. PG - 106-13 LID - S1532-0464(15)00003-9 [pii] LID - 10.1016/j.jbi.2015.01.001 [doi] AB - Chromosomal microarrays (CMAs) are routinely used in both research and clinical laboratories; yet, little attention has been given to the estimation of genome-wide true and false negatives during the assessment of these assays and how such information could be used to calibrate various algorithmic metrics to improve performance. Low-throughput, locus-specific methods such as fluorescence in situ hybridization (FISH), quantitative PCR (qPCR), or multiplex ligation-dependent probe amplification (MLPA) preclude rigorous calibration of various metrics used by copy number variant (CNV) detection algorithms. To aid this task, we have established a comparative methodology, CNV-ROC, which is capable of performing a high throughput, low cost, analysis of CMAs that takes into consideration genome-wide true and false negatives. CNV-ROC uses a higher resolution microarray to confirm calls from a lower resolution microarray and provides for a true measure of genome-wide performance metrics at the resolution offered by microarray testing. CNV-ROC also provides for a very precise comparison of CNV calls between two microarray platforms without the need to establish an arbitrary degree of overlap. Comparison of CNVs across microarrays is done on a per-probe basis and receiver operator characteristic (ROC) analysis is used to calibrate algorithmic metrics, such as log2 ratio threshold, to enhance CNV calling performance. CNV-ROC addresses a critical and consistently overlooked aspect of analytical assessments of genome-wide techniques like CMAs which is the measurement and use of genome-wide true and false negative data for the calculation of performance metrics and comparison of CNV profiles between different microarray experiments. CI - Copyright (c) 2015 Elsevier Inc. All rights reserved. FAU - Goodman, Corey W AU - Goodman CW AD - Department of Electrical and Computer Engineering, The University of Iowa, United States; Center for Bioinformatics and Computational Biology, The University of Iowa, United States. Electronic address: corey-goodman@uiowa.edu. FAU - Major, Heather J AU - Major HJ AD - Department of Pediatrics, The University of Iowa, United States. Electronic address: heather-major@uiowa.edu. FAU - Walls, William D AU - Walls WD AD - Department of Electrical and Computer Engineering, The University of Iowa, United States; Center for Bioinformatics and Computational Biology, The University of Iowa, United States. Electronic address: daniel-walls@uiowa.edu. FAU - Sheffield, Val C AU - Sheffield VC AD - Ph.D. Program in Genetics, The University of Iowa, United States; Department of Pediatrics, The University of Iowa, United States. Electronic address: val-sheffield@uiowa.edu. FAU - Casavant, Thomas L AU - Casavant TL AD - Department of Electrical and Computer Engineering, The University of Iowa, United States; Department of Biomedical Engineering, The University of Iowa, United States; Center for Bioinformatics and Computational Biology, The University of Iowa, United States; Ph.D. Program in Genetics, The University of Iowa, United States. Electronic address: tomc@eng.uiowa.edu. FAU - Darbro, Benjamin W AU - Darbro BW AD - Department of Pediatrics, The University of Iowa, United States. Electronic address: benjamin-darbro@uiowa.edu. LA - eng GR - R01 EY011298/EY/NEI NIH HHS/United States GR - R01 EY017168/EY/NEI NIH HHS/United States PT - Journal Article DEP - 20150113 PL - United States TA - J Biomed Inform JT - Journal of biomedical informatics JID - 100970413 RN - 9007-49-2 (DNA) SB - IM MH - Algorithms MH - DNA/*analysis/genetics MH - DNA Copy Number Variations/*genetics MH - Female MH - Humans MH - Male MH - Oligonucleotide Array Sequence Analysis/*methods MH - Polymorphism, Single Nucleotide MH - ROC Curve MH - Reproducibility of Results MH - Sensitivity and Specificity PMC - PMC4936396 MID - NIHMS689821 OTO - NOTNLM OT - Microarray OT - Precision OT - ROC OT - Sensitivity OT - Specificity EDAT- 2015/01/18 06:00 MHDA- 2016/01/26 06:00 PMCR- 2016/07/07 CRDT- 2015/01/18 06:00 PHST- 2013/12/30 00:00 [received] PHST- 2014/11/22 00:00 [revised] PHST- 2015/01/05 00:00 [accepted] PHST- 2015/01/18 06:00 [entrez] PHST- 2015/01/18 06:00 [pubmed] PHST- 2016/01/26 06:00 [medline] PHST- 2016/07/07 00:00 [pmc-release] AID - S1532-0464(15)00003-9 [pii] AID - 10.1016/j.jbi.2015.01.001 [doi] PST - ppublish SO - J Biomed Inform. 2015 Apr;54:106-13. doi: 10.1016/j.jbi.2015.01.001. Epub 2015 Jan 13.