Because of this technical limitation, the absence of signals during the performance of TCD is not considered a diagnostic pattern of cerebral circulatory arrest unless a study was previously conducted demonstrating that the windows are permeable to ultrasound.
Debido a esta limitación técnica, la ausencia de señales durante la realización del DTC no se considera patrón diagnóstico de paro circulatorio cerebral, a menos que previamente se haya realizado un estudio que evidencie que las ventanas son permeables al ultrasonido.