Ari Kellen is an experienced executive with expertise in the healthcare industry. He has helped several early-stage startups either as an angel investor, a strategic consultant, or a board member. Among his other professional concentrations, Ari Kellen is interested in developing innovative uses for high-frequency ultrasound.
By definition, ultrasonic waves travel at frequencies above those detectable by the human ear. The ultrasound equipment that produces medical imagery in the clinical setting typically has wave frequencies ranging from 2 MHz to 12 MHz.
Healthcare professionals generally regard frequencies lower than 10MHz as low-frequency ultrasound (LFUS) and frequencies higher than 10MHz as high-frequency ultrasound (HFUS). The shorter wavelengths of higher-frequency waves cause them to become absorbed and fade away more readily.
This means that LFUS is far better for penetrating deep into the body. However, lower-frequency waves tend to produce images of lower resolution. HFUS, by contrast, offers significantly better resolution and ability to be deployed for therapeutic use against certain types of tumors.
