CT will not play a role in the diagnosis of Coronavirus in the US now that both the ACR and Society of Thiracic radiologists have come out not recommending it for first line diagnosis. This is a complex decision involving the availability of other tests, the potential for spread via contamination of CT, the need for CT for other things and the limited availability of scanners.

There is a group that will open source a great dataset first this sometime soon, as it might be useful in other countries.