METHOD AND APPARATUS COMBINING DIAGNOSTIC ULTRASOUND WITH THERAPEUTIC ULTRASOUND TO ENHANCE THROMBOLYSIS

摘要

A method and apparatus for combining therapeutic pulsed or continuous-wave ultrasound with diagnostic pulsed ultrasound are described. In both a therapeutic mode and in a diagnostic mode, the ultrasound is administered fr om a single probe (128) to a patient (118) suffering from thrombosis. The ultrasound can have the same or different frequency ranges in the diagnostic and therapeutic modes. The pulsed or continuous-wave ultrasound in the therapeutic mode enhances a lysing effect of a thrombolytic agent (110). The pulsed ultrasound in the diagnostic mode allows monitoring of blood flow to locate a thrombus (122), to determine an optimal window to administer the therapeutic pulsed ultrasound, and to detect when recanalization has occured . If an operator attends the device, a graphical display (600) operates during the diagnostic mode to display an image representative of the blood flow.