Where can we find positive digital mammogrphy or negative mammography? How to distinguish whether the digital mammography suffering from a disease?

Created by Xin Feng fengxin
Hi Xin, There is a set of 500 mammography images - the [Pilot Data](https://www.synapse.org/#!Synapse:syn6174174) - that you can download to get a sense of the data. For a given exam, you can know if a breast is positive (i.e. the breast has been diagnosed with cancer within 12 months of the given screening mammography exam) or negative using the covariates cancerL and cancerR from the exams metadata table (see [Challenge Questions](https://www.synapse.org/#!Synapse:syn4224222/wiki/401749)). Please have a look at the [Challenge Dictionary](https://www.synapse.org/#!Synapse:syn4224222/files/) to see what information is available in each sub-challenges.

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