Dobbins 2 ROC dataset

This is referred to in the code as the "DOB2" dataset. It contains actionability ratings, i.e., do you recommend further follow up on the patient, one a 1 (definitely not) to 5 (definitely yes), effectively an ROC dataset using a 5-point rating scale.

dataset12

Format

A list with 3 elements: $ratings, $lesions and $descriptions; $ratings contain 3 elements, $NL, $LL and $LL_IL as sub-lists; $lesions contain 3 elements, $perCase, $IDs and $weights as sub-lists; $descriptions contain 7 elements, $fileName, $type, $name, $truthTableStr, $design, $modalityID and $readerID as sub-lists;

  • rating$NL, num [1:4, 1:5, 1:152, 1], ratings of non-lesion localizations, NLs

  • rating$LL, num [1:4, 1:5, 1:88, 1], ratings of lesion localizations, LLs

  • rating$LL_ILNA, this placeholder is used only for LROC data

  • lesions$perCase, int [1:88], number of lesions per diseased case

  • lesions$IDs, num [1:88, 1], numeric labels of lesions on diseased cases

  • lesions$weights, num [1:88, 1], weights (or clinical importances) of lesions

  • descriptions$fileName, chr, "dataset12", base name of dataset in `data` folder

  • descriptions$type, chr "ROC", the data type

  • descriptions$name, chr "DOBBINS-2", the name of the dataset

  • descriptions$truthTableStr, num [1:4, 1:5, 1:152, 1:2] , truth table structure

  • descriptions$design, chr "FCTRL", study design, factorial dataset

  • descriptions$modalityID, chr [1:4] "1" "2" "3" "4", modality label(s)

  • descriptions$readerID, chr [1:5] "1" "2" "3" "4" ..., reader labels

References

Dobbins III JT et al. Multi-Institutional Evaluation of Digital Tomosynthesis, Dual-Energy Radiography, and Conventional Chest Radiography for the Detection and Management of Pulmonary Nodules. Radiology. 2016;282(1):236-250.

Examples

res <- str(dataset12)
#> List of 3
#>  $ ratings     :List of 3
#>   ..$ NL   : num [1:4, 1:5, 1:152, 1] -Inf -Inf -Inf -Inf -Inf ...
#>   ..$ LL   : num [1:4, 1:5, 1:88, 1] 3 4 4 -Inf -Inf ...
#>   ..$ LL_IL: logi NA
#>  $ lesions     :List of 3
#>   ..$ perCase: int [1:88] 1 1 1 1 1 1 1 1 1 1 ...
#>   ..$ IDs    : num [1:88, 1] 1 1 1 1 1 1 1 1 1 1 ...
#>   ..$ weights: num [1:88, 1] 1 1 1 1 1 1 1 1 1 1 ...
#>  $ descriptions:List of 7
#>   ..$ fileName     : chr "dataset12"
#>   ..$ type         : chr "ROC"
#>   ..$ name         : chr "DOBBINS-2"
#>   ..$ truthTableStr: num [1:4, 1:5, 1:152, 1:2] 1 1 1 1 1 1 1 1 1 1 ...
#>   ..$ design       : chr "FCTRL"
#>   ..$ modalityID   : Named chr [1:4] "1" "2" "3" "4"
#>   .. ..- attr(*, "names")= chr [1:4] "1" "2" "3" "4"
#>   ..$ readerID     : Named chr [1:5] "1" "2" "3" "4" ...
#>   .. ..- attr(*, "names")= chr [1:5] "1" "2" "3" "4" ...