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iMRMC  

Multi-Reader, Multi-Case Analysis Methods (ROC, Agreement, and Other Metrics)
View on CRAN: Click here


Download and install iMRMC package within the R console
Install from CRAN:
install.packages("iMRMC")

Install from Github:
library("remotes")
install_github("cran/iMRMC")

Install by package version:
library("remotes")
install_version("iMRMC", "2.1.0")



Attach the package and use:
library("iMRMC")
Maintained by
Brandon Gallas
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2017-12-12
Latest Update: 2024-09-02
Description:
Do Multi-Reader, Multi-Case (MRMC) analyses of data from imaging studies where clinicians (readers) evaluate patient images (cases). What does this mean? ... Many imaging studies are designed so that every reader reads every case in all modalities, a fully-crossed study. In this case, the data is cross-correlated, and we consider the readers and cases to be cross-correlated random effects. An MRMC analysis accounts for the variability and correlations from the readers and cases when estimating variances, confidence intervals, and p-values. The functions in this package can treat arbitrary study designs and studies with missing data, not just fully-crossed study designs. The initial package analyzes the reader-average area under the receiver operating characteristic (ROC) curve with U-statistics according to Gallas, Bandos, Samuelson, and Wagner 2009 . Additional functions analyze other endpoints with U-statistics (binary performance and score differences) following the work by Gallas, Pennello, and Myers 2007 . Package development and documentation is at .
How to cite:
Brandon Gallas (2017). iMRMC: Multi-Reader, Multi-Case Analysis Methods (ROC, Agreement, and Other Metrics). R package version 2.1.0, https://cran.r-project.org/web/packages/iMRMC. Accessed 06 Mar. 2026.
Previous versions and publish date:
1.1.0 (2017-12-12 16:18), 1.2.0 (2019-04-19 18:10), 1.2.1 (2020-01-20 20:30), 1.2.2 (2020-03-24 07:30), 1.2.3 (2021-07-15 07:30), 1.2.4 (2022-02-24 11:20), 1.2.5 (2023-05-15 23:20), 2.0.0 (2024-05-23 17:40)
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Complete documentation for iMRMC
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