Development of a Complementary Integrated Probe for Dynamic Elastography

Elastography is a medical measurement method that estimates tissue mechanical properties to detect inclusions and their locations. Successful elastography requires effective stimulation together with imaging modality for mechanical property extraction. Axial vibration is optimal, aligning with the ultrasound probe (US) motion for maximal tissue displacement. This paper introduces a novel complementary probe, transforming a conventional ultrasound probe into an integrated elastography one. The proposed probe incorporates an electromagnetic actuator that generates linear excitation. By attaching the US to the actuator using clamps, the reciprocal motion of the electromagnetic vibrator moves the ultrasound probe linearly. The stimulation is transmitted to the tissue through the probe. To enhance diagnostic capabilities, this device offers customizable vibration parameters like desired frequency, force, amplitude, and signal waveform, and can communicate with computers or other devices such as smartphones. Preliminary experiments demonstrate the probe’s capability in clinical applications, particularly dynamic elastography. By integrating mechanical vibration and imaging, this novel probe shows promise for advancing elastography. It authorizes clinicians with an enhanced diagnostic tool and opens avenues for practical elastography applications.