A team official told ESPN.com's Pierre LeBrun that the team expects to know the results of the scan Thursday morning.
"They did an X-ray on Hank and they couldn't tell on the X-ray and he was just obviously in a lot of pain, so we're doing a follow-up right now," Vancouver couch Alain Vigneault said on the team's official website.
Sedin, who is wearing a walking boot, leads the league in assists with 46, and is fifth overall in points with 57.
If he can't play, Sedin would see his 552-game consecutive games streak end Thursday night, when the Canucks play the Wild in Minnesota.
Sedin left Tuesday's game briefly after blocking Nashville defenseman Kevin Klein's slap shot with his foot.
Information from The Associated Press contributed to this report.