GDC API: Obtain the Objective Power (or Magnification) of a WSI file

I've been trying to find out a way to retrieve the Objective Power (or Magnification) of a Whole Slide Image file without downloading it first, using the GDC API.

I've seen that some WSI's Objective power might be 40x and others 20x, and I need a way to filter the ones I want to retrieve according with this parameter.

However, I cannot figure out the query I need for this.

Can anyone help me?

gdc wsi tcga

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updated 3.3 years ago by Zhenyu Zhang

• written 3.3 years ago by Martim •

1 answer

There is a property called magnification on the slide image node. However, except a few slides from CGCI-BLGCP, most of the data submitters, including TCGA, did not provide such information to the GDC, so they mainly have no values.

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written 3.3 years ago by Zhenyu Zhang

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