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physimals / oxasl

Python based ASL pipeline based on oxford_asl
https://oxasl.readthedocs.io/
Apache License 2.0
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distortion correction fails for VE data #11

Open mcraig-ibme opened 5 years ago

mcraig-ibme commented 5 years ago

This is related to the difficulty in obtaining a PWI prior to vessel decoding. The PWI is required for EPI_REG.

However since the encoding cycles typically include a 'control all' and 'label all' image, it should be possible to implement this for VE data.

mcraig-ibme commented 5 years ago

One issue here is that we do not automatically know which of the VE volumes is the control and which the tag-all. We could assume the default (with a warning) first volume is control, second is tag-all.