What is the goal of ultrasound devices in thrombolysis?

The goal of ultrasound devices in thrombolysis is to enhance the effect of thrombolytics. This is achieved through a process called "ultrasound-enhanced thrombolysis," where high-frequency sound waves are applied to the thrombus (blood clot). The ultrasound waves generate small mechanical vibrations that improve the penetration of the thrombolytic agents into the clot. This leads to a more effective dissolution of the clot and facilitates blood flow restoration.

By utilizing ultrasound, clinicians can achieve a quicker and more efficient breakdown of clots compared to thrombolytics alone. The combination of the energy produced by ultrasound and the pharmacological effects of the thrombolytic agents works synergistically, making the procedure more successful in various clinical settings, particularly in cases of occluded blood vessels that require prompt intervention.

Other options, while they may seem relevant, do not align with the core function of ultrasound in this context. For instance, creating a low-pressure zone is not the primary aim of ultrasound in thrombolysis; rather, the use of thrombolytics in conjunction with ultrasound specifically targets the clot. Similarly, removing hard plaque is unrelated, as thrombolysis primarily addresses soft clots. The injection of contrast agents also serves a different purpose, more related to imaging