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UPDATE: Information below is retained for historical purposes. Artifacts of the challenge, including the ground truth for the leaderboard and test data, are available through the following digital object identifier: http://dx.doi.org/10.7937/K9/TCIA.2015.zF0vlOPv. |
Summary
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The National Cancer Institute’s (NCI's) Cancer Imaging Program in collaboration with the International Society for Biomedical Imaging (ISBI) has launched a grand challenge involving prostate gland magnetic resonance imaging (MRI) data. The challenge will take place at the ISBI Symposium, April 7-11, 2013 in San Francisco, CA. NOTE: Information below is retained for historical purposes. Artifacts of the challenge are available through the following digital object identifier: http://dx.doi.org/10.7937/K9/TCIA.2015.zF0vlOPv. |
Healthcare Context
Prostate cancer is the second most common cause of cancer deaths in males and will afflict 1 in 6 men. Many diagnostic prostate biopsies fail to detect occult cancers because of the difficulty in properly determining the prostate’s anatomy. Approximately 20% of ultrasound image guided prostate biopsies return negative results despite rising levels of prostate-specific antigen (PSA) markers in the blood and the presence of cancer somewhere in the 30+ cc gland. These failures have been attributed by some to the hesitation to sample one of the two major parts of the glands— namely the predilection toward the more easily reached peripheral zone (PZ) over the less accessible central gland (CG). This year’s ISBI challenge contestants outlined these two non-overlapping adjacent regions of the gland (see image).
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- Each case is ~ 3 to 10MB so you'll need to have ~600MB free on your machine.
- In order to obtain the DICOM images please login to TCIA (or register for a free account).
- Having logged on, go to the left side-bar to click on the link "search shared list".
- The Shared List Name to search for is: "ISBI Prostate Challenge - Training".
- Then click the "Submit" box at the lower right-hand part of the screen.
- Click the blue underlined link titled ISBI Prostate Challenge - Training to open the Shared List.
- For additional help with searching for shared lists please refer to section 3.7.3 in the TCIA User's Guide or contact the TCIA Helpdesk at 314-747-4254 help@cancerimagingarchive.net .
- Next click the blue Download Manager link.
- Be sure to note the Browse box at the top of the next screen to choose a suitable folder location on your machine to receive the downloaded DCM cases.
- Then click the start button at the bottom arrow of the screen picture below to start the download.
- Wait until all of the progress bars reach 100%. A message will appear at the bottom of the Download Manager window indicating when the data is completely finished downloading.
- For additional help with using the Download Manager please refer to section 3.8 in the TCIA User's Guide or contact the TCIA Helpdesk at 314-747-4254 help@cancerimagingarchive.net.
There will be 60 cases, each consisting of 15+ (4 mm thick slices at 3T) or 28+ (3 mm thick at 1.5T) adjacent axial cross-section cuts. Half of them were obtained at 1.5 T (Philips Achieva) with an endo-rectal receiver coil (fromBostonMedicalCenterfrom Boston Medical Center) and the other half at 3T (Siemens TIM) with a surface coil (from Radboud University Nijmegen Medical Centre [RUNMC],Netherlands). They were acquired as T2-weighted MR axial pulse sequences. Each file contains nearly all DICOM acquisition parameters except tags that specifically identify Private Health Information.
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- In order to obtain the DICOM images please login to TCIA (or register for a free account).
- Having logged on, go to the left side-bar to click on search shared list.
- The Shared List Name to search for is: "ISBI Prostate Challenge - Leader Board".
- Then click the Submit box at the lower right-hand part of the screen.
- Click the blue underlined link titled ISBI Prostate Challenge - Leader Board to open the Shared List.
- For additional help with searching for shared lists please refer to section 3.7.3 in the TCIA User's Guide or contact the TCIA Helpdesk at 314-747-4254 help@cancerimagingarchive.net.
- Next click the blue Download Manager link.
- Be sure to note the Browse box at the top of the next screen to choose a suitable folder location on your machine to receive the downloaded DCM cases.
- Then click the start button at the bottom arrow of the screen picture below to start the download.
- Wait until all of the progress bars reach 100%. A message will appear at the bottom of the Download Manager window indicating when the data is completely finished downloading.
- For additional help with using the Download Manager please refer to section 3.8 in the TCIA User's Guide or contact the TCIA Helpdesk at 314-747-4254Helpdesk at help@cancerimagingarchive.net.
Please note that no NRRD segmentations will be available for download for these leaderboard cases until after the conclusion of the challenge.
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