Background
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began in 2006 as a three-year pilot jointly sponsored by the National Cancer Institute (NCI) and National Human Genome Research Institute (NHGRI). The TCGA pilot project (focused initially on glioblastoma, ovary, and lung cancers) confirmed that an atlas of genomic changes could be constructed for specific cancer types. It also showed that |
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networks of research and technology teams working on related projects could pool their efforts, create an economy of scale, and develop an infrastructure for making the data publicly accessible. |
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The success of that pilot |
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encouraged the National Institutes of Health |
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(NIH) to invest in TCGA’s efforts to collect and characterize more than 20 additional tumor types and make findings freely accessible for researchers to download. |
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As an opportunity to leverage that wealth of new biomedical knowledge, CIP committed substantial effort to gather and place the clinical diagnostic images that match the genomically analyzed TCGA tissue cases in The Cancer Imaging Archive. CIP encouraged an ad hoc image research team to study glioblastoma. The Cancer Imaging Archive now contains a TCGA GBM collection with images from more than 200 subjects whose molecular and clinical patient data can be accessed in the TCGA Data Portal. A multi-institutional team coordinated by Dr Adam Flanders of Thomas Jefferson University assembled researchers from across the country to create the TCGA Glioma Phenotype Research Group. In less than a year's time they have quickly demonstrated the advantages of such scientific collaboration by their rapid scientific progress with a number of publications and abstracts presented and in the pipeline for future venues.
Presently, CIP is developing agreements with many of the TCGA Tissue Site Source institutions to recover and place in the Image Archive collections of diagnostic images that match the genomic data now being deposited in the publically accessible TCGA Data Portal on cancers of the brain (GBM/LGG), breast (BRCA), renal (KIRC), lung (LUAD), and in due time, many of the future 20-plus tumors that TCGA will characterize as the program moves forward. Imaging Source Site (ISS) Groups are being created and governed by participants from institutions that have provided imaging data to the archive for a given cancer type. Modeled after TCGA analysis groups, these groups are given the opportunity to publish a marker paper for a given cancer type per the aforementioned publication policy. It is hoped that this will generate increased participation in the building of these multi-institutional data sets that become an open community resource.
Publication Policies
TCIA publication guidelines are derived from the policy outlined by the The Cancer Genome Atlas. These must be followed in addition to the publication policy of the TCGA Data Portal: http://cancergenome.nih.gov/abouttcga/policies/publicationguidelines.
There are no limitations on publications containing analyses using any TCGA-linked imaging data set if the data set meets one of the following three freedom-to-publish criteria:
- A marker paper has been published on that tumor type; or
- 12 months after 100 cases of a given tumor type have had their DICOM data published on TCIA; or
- The author receives specific approval from the TCGA Image Source Site (ISS) Groups representing any relevant tumor types.
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The genomic, clinical and histopathology images from the project are available via NCI's Genomic Data Commons. NCI's Cancer Imaging Program subsequently leveraged the agreements with TCGA Tissue Source Sites to collect clinical diagnostic images from these subjects and make them available on TCIA. By combining the imaging data from TCIA with the other data types collected by TCGA a research community focused on connecting cancer phenotypes to genotypes was formed, resulting in over one hundred peer-reviewed publications about these data.
Data Access
Radiology data for TCGA patients are hosted on TCIA. Pathology images were collected prior to TCIA's involvement in the project, and are hosted on NCI's Genomic Data Commons along with the genomic and clinical data from these studies. Use the links in the table to access each type of imaging data.
Collection | Tumor Type | Locations | Modalities | Radiology (Subjects) | Pathology (Subjects) |
| TCGA-BLCA | Bladder Endothelial Carcinoma | Bladder | CT, CR, MR, PT, DX, Pathology | 120 | |
| TCGA-BRCA | Breast Cancer | Breast | MR, MG, Pathology | 139 | 1098 |
| TCGA-CESC | Cervical Squamous Cell Carcinoma and Endocervical Adenocarcinoma | Cervix | MR, Pathology | 54 | 307 |
| TCGA-COAD | Colon Adenocarcinoma | Colon | CT, Pathology | 25 | 460 |
| TCGA-ESCA | Esophageal Carcinoma | Esophagus | CT, Pathology | 16 | 183 |
| TCGA-GBM | Glioblastoma Multiforme | Brain | MR, CT, DX, Pathology | 262 | 606 |
| TCGA-HNSC | Head and Neck Squamous Cell Carcinoma | Head-Neck | CT, MR, PT, RTSTRUCT, RTPLAN, RTDOSE, Pathology | 227 | 520 |
| TCGA-KICH | Kidney Chromophobe | Kidney | CT, MR, Pathology | 15 | 113 |
| TCGA-KIRC | Kidney Renal Clear Cell Carcinoma | Renal | CT, MR, CR, Pathology | 267 | 537 |
| TCGA-KIRP | Kidney Renal Papillary Cell Carcinoma | Renal | CT, MR, PT, Pathology | 33 | 288 |
| TCGA-LGG | Low Grade Glioma | Brain | MR, CT, Pathology | 199 | 515 |
| TCGA-LIHC | Liver Hepatocellular Carcinoma | Liver | MR, CT, PT, Pathology | 97 | 377 |
| TCGA-LUAD | Lung Adenocarcinoma | Chest | CT, PT, NM, Pathology | 69 | 514 |
| TCGA-LUSC | Lung Squamous Cell Carcinoma | Lung | CT, NM, PT, Pathology | 37 | 495 |
| TCGA-OV | Ovarian Serous Cystadenocarcinoma | Ovary | CT, MR, Pathology | 143 | 590 |
| TCGA-PRAD | Prostate Cancer | Prostate | CT, PT, MR, Pathology | 14 | 496 |
| TCGA-READ | Rectum Adenocarcinoma | Rectum | CT, MR, Pathology | 3 | 171 |
| TCGA-SARC | Sarcomas | Chest-Abdomen-Pelvis, Leg, TSpine | CT, MR, Pathology | 5 | 261 |
| TCGA-STAD | Stomach Adenocarcinoma | Stomach | CT, Pathology | 46 | 440 |
| TCGA-THCA | Thyroid Cancer | Thyroid | CT, PT, Pathology | 6 | 506 |
| TCGA-UCEC | Uterine Corpus Endometrial Carcinoma | Uterus | CT, CR, MR, PT, Pathology | 65 | 560 |
Frederick National Lab Research Efforts
Imaging Source Site (ISS) Groups were organized by the Cancer Imaging Informatics Lab within the Frederick National Laboratory for Cancer Research. The groups were governed by participants from institutions which provided imaging data to the archive for each TCGA cancer type. Modeled after the TCGA genomic analysis groups, ISS groups were given a one year embargo window after 100 cases were accrued to publish a marker paper for a given cancer type
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Specifically, the status of each tumor data set is available below. If you have questions, do not hesitate to contact cancerimagingarchive@mail.nih.gov.
Tumor Type | ||
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No restrictions; all data available without limitations | No restrictions; image data available without limitations | |
No restrictions; all data available without limitations | Publication limitations in place until 08/22/2013 | |
No restrictions; all data available without limitations | Publication limitations in place until 10/16/2013 | |
Publication limitations in place until 5/30/2013 | Projects have not reached 100 imaging cases; Please check with cancerimagingarchive@mail.nih.gov prior to any publication | |
Publication limitations in place until 3/11/2014 | Projects have not reached 100 imaging cases; Please check with cancerimagingarchive@mail.nih.gov prior to any publication | |
Projects have not reached 100 cases; Please check with tcga@mail.nih.gov prior to any publication | Projects have not reached 100 imaging cases; Please check with cancerimagingarchive@mail.nih.gov prior to any publication |
Ongoing Research Efforts
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. This increased incentive among source sites to contribute their patients' images, which would ultimately become a public resource to enable radiogenomic research. The ISS groups included:
Group Name | Tumor Type |
Status
| TCGA |
| Bladder Phenotype Research Group |
Open
| Urothelial Bladder Carcinoma (BLCA) |
ISS only
ISS only
ISS only
ISS only
Please contact us at cancerimagingarchive@mail.nih.gov if you would like to join our public mailing lists to receive notifications of newly available data and other news items related to these data sets.
References
TCGA Collections Publication Guidelines
Historically TCIA had implemented publication guidelines derived from the policy outlined by the The Cancer Genome Atlas, TCGA. These were followed in addition to the publication policy of the TCGA Data Portal: http://cancergenome.nih.gov/abouttcga/policies/publicationguidelines. As of 10/30/2018 all cancer types are now available for use without any special restrictions. Please be sure to follow TCIA's regular Data Usage Policies and Restrictions, and to also provide attribution recognizing the TCGA data collection efforts. An example of a proper attribution is:
"The results <published or shown> here are in whole or part based upon data generated by the TCGA Research Network: http://cancergenome.nih.gov/."
References
The following links contain publications from the main TCGA project as well as their posted publication guidelines:
Included below are some posters and presentations which help summarize the CIP TCGA Radiology Initiative and its supporting components such as TCIA.
- TCIA Workshop at 2014 TCGA Symposium - Presented at TCGA Scientific Symposium, May 12, 2014 in Washington, DC.
- Imaging and Genomics: Is There a Synergy? - Published in August 2012 in Radiology 2012 ,264,329-331:329–31.
- A Scalable Methodology for Correlating Clinical Imaging Features with TCGA Data - Presented at TCGA Network Symposium, November 17-1817–18, 2011 Washington, DC.
- The Cancer Imaging Archive: a Repository of Advanced Imaging Information Correlated with TCGA Samples - Presented at TCGA Network Symposium, November 17-1817–18, 2011 Washington, DC
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