A technique to inject microspheres into the left atrium of awake dogs without thoracotomy.
D000818:Animals; D016275:Atrial Function; D002404:Catheterization / Q000379:methods*; D004285:Dogs; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D007267:Injections / Q000379:methods; D008863:Microspheres