directional atherectomy

di·rec·tion·al ath·er·ec·to·my

hemoval of coronary atherometer with instrumented catheter.

di·rec·tion·al ath·er·ec·to·my

(DCA) (dĭr-ek'shŭn-ăl ath'thĕr-ek'tŏ-mē) Excision of an atheroma with a motor-driven shaver mounted on an arterial catheter.