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marksgraham / OCT-Converter

Tools for extracting the raw optical coherence tomography (OCT) and fundus data from proprietary file formats.
https://pypi.org/project/oct-converter/
MIT License
199 stars 72 forks source link

How to get OCTA from fda file #70

Closed pomeloyy closed 1 year ago

pomeloyy commented 1 year ago

Hi Mark, Hope you are doing well. Recently I have been collecting some fda files which include OCTA images. I guess the useful information should be stored in these two chunks '@PARAM_ANGIOGRAPHY' and 'IMG_ANGIOGRAPHY_02'.

Have you tried extracting the OCTA directly from the fda file before, just like extracting OCT and fundus? image

Thanks in advance Regards!

marksgraham commented 1 year ago

Hi,

I've never got my hands on any FDA angio data so I haven't tried it out. If you wanted to have a go, you can try changing this function to read the IMG_ANGIOGRAPHY_02 field - you might get lucky and find it just works: https://github.com/marksgraham/OCT-Converter/blob/2ef8ba3eb13e27d0ad7fa077a86513297d7b646c/oct_converter/readers/fda.py#L122

As an alternative, if you're able to share data and want me to take a look then get in touch via my email - though I might be slow to get round to it!

Mark