"paired" ROC analysis

["Fredrik Lundgren" <fredrik.lundgren@norrkoping.mail.telia.com>]

Hello,

I'm studying observervations like "ischaemic feet", "embolising carotid 
arteries" etc. To sharpen the anlysis it would be nice be able to use the other 
foot or the other carotid artery in each patient in a paired anlysis of a 
diagnostic variable. Has anyone set up a "paired" ROC analysis in this sense in 
S or R? 

Yours sincerely 
Fredrik Lundgren