Index to the resources on this page:
The Nijmegen Database was removed from our server on March 31, 2000. The DDSM database provides a much larger and thus, more diverse set of mammograms with ground truth. You can download some volumes of cases from the DDSM database using anonymous ftp and can order any volume on 8mm tape. New collections of cases in the BCRP volumes (obtained by selecting a set of cases from other DDSM volumes) provide training and testing datasets for microcalcification and mass detection algorithm development and performance evaluation.
We, at Lawrence Livermore National Laboratories (LLNL), along with
University of California at San Fransisco (UCSF) Radiology Dept. have
developed a 12 volume CD Library of digitized mammograms featuring
microcalcifications. For each digitized film image, we have 2
associated "truth" images (full size binary images) that show:
Along with the "truth" images, we provide a file with case history, radiologists comments, and other information.
The library contains 198 films from 50 patients (4 views per patient, but only 2 views from one mastectomy case), selected so as to span a range of cases of interest. These films were digitized to 35 microns. Each pixel was sampled to 12 bits of grayscale. As a result, each digitized mammogram results in image that is about 50 megabytes in size, for a total of nearly 6 gigabytes for the entire library.
The films were selected to present 5 normal, average, healthy cases (previous normal mammograms and no history of ultrasound, magnification views, biopsy, etc.), 5 normal but difficult cases (with either dense or fibrous breasts, implants, or asymmetric tissue), 20 cases of obviously benign microcalcifications (with at least 3 years of follow-up without change or developing cancer), 12 cases of suspicious, benign microcalcifications, (note: all these benign cases had either a biopsy or a diagnostic mammogram plus at least 3 years of subsequent follow-up without change or developing cancer), and 8 cases with a malignant cluster of microcalcifications, biopsy proven.
The set is available via anonymous ftp:
(Go to "bundled" for zipped volumes, or go to "unbundled" for individual files.)
For more information on the database, send e-mail to email@example.com
The images in this database were scanned with a Joyce-Loebl microdensitometer SCANDIG-3, which has a linear response in the optical density range 0-3.2. Each pixel is 8-bits deep and at a resolution of 50um x 50um. Further details of performance can be found in:
The data is in compressed format and before use will have to be
uncompressed using the UNIX `uncompress
There is an accompaining License Agreement. MIAS is a nonprofit organization, and there is a small fee for a copy of the database on an 8mm Exabyte tape. Ordering information can be found at the MIAS Website
The Digital Mammography Home Page at Brandeis University. Contains links to several other digital mammography pages. Includes information on upcoming conferences, digital detector work, computer-aided diagnosis and image processing, and commercial ventures.