German Medical Medical (general)

Die AK öffnet sich nicht, AI: I˚, TI: I˚ bei liegender ICD-Elektrode. MI: II˚.

This is just to confirm. I think that the abbreviations mean the following:
AK: Aortenklappe
AI: Aortenklappeinsuffizienz, Grad I
TI: Trikuspidalklappeinsuffizienz, Grad I
MI: Mitralklappeinsuffizienz, Grad II

Those of you who deal with medical translations, could you please confirm if the above is correct?

Thank you for your help!