Page History
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Note: This collection has been migrated to The Cancer Imaging Archive (TCIA). For more information about the final release of the complete LIDC-IDRI data set which includes improved quality control measures and the entire 1,010 patient population please visit the LIDC-IDRI wiki page at TCIA. |
Summary
The Lung Image Database Consortium (LIDC) image collection consists of diagnostic and lung cancer screening thoracic CT scans with marked-up annotated lesions. It is a web-accessible international resource for development, training, and evaluation of computer-assisted diagnostic (CAD) methods for lung cancer detection and diagnosis.
Supporting Documentation
For more information click on the following links:
- LIDC Program: http://imaging.cancer.gov/programsandresources/InformationSystems/LIDC
- XML File Documentation
- Annotated XML File
- LIDC Radiologist Instructions for Spatial Location and Extent Estimates
- Nodule size list for the LIDC public cases
How to retrieve LIDC Image Data on NBIA
Select "Search Images"
On the simple search select "LIDC" under the "Collections" dialogue.
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Annotation Issues/Comments
- We recently (early 2009) discovered that, for a subset of cases, inconsistent rating systems were used among the 5 sites with regard to the spiculation and lobulation characteristics of lesions identified as nodules > 3 mm. We are in the process of correcting this situation. The XML nodule characteristics data as it exists for some cases will be impacted by this error.
- Also note that the XML files do not store radiologist annotations in a manner that allows for a comparison of individual radiologist reads across cases (i.e., the first reader recorded in the XML file of one CT scan will not necessarily be the same radiologist as the first reader recorded in the XML file of another CT scan).
AIM Annotation Conversion Project
Data Access
Collection Statistics |
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Modalities | CT |
Number of Patients | 399 |
Number of Studies | 400 |
Number of Series | 400 |
Number of Images | 101,367 |
Supporting Documentation
All supporting documentation has been migrated toThe Cancer Imaging Archive's wiki as of 6/21/11. As part of an effort to move towards standard formats for annotation and markup a project has been undertaken to convert this data from the LIDC project into Annotated Image Markup format (AIM). AIM is a standard which was developed out of the caBIG program. A related section of the wiki has been dedicated to covering the activities of this project and can be found here: LIDC Conversion to AIM