The August 2009 Size Estimations from a June 2009 Snapshot
At the end of May 2009, the NCI made available, in the newly renamed National Biomedical Imaging Archive (NBIA), an extended set of 401 CT scans, documented by the Lung Imaging Database Consortium (LIDC). This set includes the original 85 scans and adds 316 new scans; as there are two subjects with two scans each, the total number of subjects is 399.
All the scans and their XML documentation were downloaded and processed to extract the radiologists's drawn boundaries for nodules estimated to have a diameter of 3 mm or larger and to identify the unique regions of interests (ROI) corresponding to the (estimated) physical nodules. The boundaries were, then, analyzed to provide the volumetric size estimates by rasterizing them and computing the nodule volume as the product of the number of nodule voxels and the voxel size. Some of the scans or their documentations could not be fully processed and they are listed in the following sections of these notes.
Subjects with problems in the DICOM files
For the following subject there were missing frames in the scan:
13614193285030537
Subjects with no documentation
The following subjects had no ducumentation file:
13614193285030107 13614193285030633 13614193285030642 13614193285030644 13614193285030646 13614193285030647 13614193285030648 13614193285030649 13614193285030650 13614193285030653 13614193285030654
Subjects with other processing problems (updated 2/2/2010)
For the following subject there were other problems while processing the scan documentation:
13614193285030022 13614193285030037 13614193285030046 13614193285030057 13614193285030074 13614193285030078 13614193285030112 13614193285030148 13614193285030183 13614193285030192 13614193285030208 13614193285030209 13614193285030222 13614193285030223 13614193285030249 13614193285030258 13614193285030260 13614193285030264 13614193285030268 13614193285030281 13614193285030289 13614193285030296 13614193285030312 13614193285030313 13614193285030330 13614193285030338 13614193285030340 13614193285030343 13614193285030344 13614193285030345 13614193285030346 13614193285030352 13614193285030361 13614193285030362 13614193285030366 13614193285030368 13614193285030375 13614193285030388 13614193285030399 13614193285030407 13614193285030409 13614193285030424 13614193285030450 13614193285030459 13614193285030488 13614193285030490