Offset values are negative for some cases?
SeanKski opened this issue · comments
These should be positive correct? Or is there some meaning to a patient having a negative offset?
The offset is time since admission or symptoms. So negative means from before this. Possibly they were at the hospital for something else where they had an x-ray and then caught the virus.
Possibly they were at the hospital for something else where they had an x-ray and then caught the virus.
Thank you for your response! I thought the same thing, however, there are patients with only one image (i.e. a unique patient) which have a negative offset but still a finding of COVID-19 (e.g. patientid 232).
Does this mean that the patient was later found to have COVID-19, but this X-ray is just a scan of their lungs pre-virus?
I see patientid 232 is like that. I'll look into it more.
There was an update to the Hanover data that changed a bunch of offsets. @bganglia is working on it now to update the offsets for those images.
Great! Thank you :)