dataset12: Dobbins 2 ROC dataset

In dpc10ster/RJafroc: Artificial Intelligence Systems and Observer Performance

Dobbins 2 ROC dataset

Description

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.

Usage

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 Array[1:4, 1:5, 1:152, 1] ratings of non-lesion localizations NLs

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

• rating$LL_IL NA This placeholder is used only for LROC data

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

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

• lesions$weights num Array[1:88, 1], weights (or clinical importance) 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 Array[1:4, 1:5, 1:152, 1:2] truth table structure

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

• descriptions$modalityID chr Array[1:4] modality label(s)

• descriptions$readerID chr Array[1:5] 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)

dpc10ster/RJafroc documentation built on June 13, 2025, 10:07 p.m.