Foot pedal-activated injector for contrast-enhanced sonography

Area of Science:

• Medical Imaging
• Diagnostic Ultrasound
• Interventional Radiology

Background:

• Contrast-enhanced sonography (CES) is crucial for liver lesion characterization.
• Traditional CES requires coordination between the sonologist and an assistant for contrast agent injection.
• Maintaining probe stability during injection is essential for optimal image acquisition.

Purpose of the Study:

• To evaluate the feasibility and convenience of an electrically activated foot pedal injector for CES.
• To assess the impact of foot pedal injection on sonologist workflow and patient safety during liver lesion examinations.

Main Methods:

• A prospective study involving 37 patients with liver lesions undergoing CES.
• Utilized an electrically activated foot pedal injector for contrast agent administration.
• Sonologists controlled injections by pressing the foot pedal, allowing continuous probe manipulation.

Main Results:

• All 37 contrast-enhanced sonography examinations were successfully completed without any complications.
• The foot pedal injector facilitated maintaining a stationary probe position during contrast administration.
• The system eliminated the requirement for additional personnel to manage the injection process.

Conclusions:

• Foot pedal-activated injection is a safe and effective method for contrast-enhanced sonography.
• This technique enhances convenience and efficiency for sonologists performing liver lesion assessments.
• The device streamlines the workflow, improving the overall utility of diagnostic ultrasound.