The common functional brain imaging modalities, including functional magnetic resonance imaging (fMRI) and positron emission tomography, have excellent depth penetration but do not provide good ...

Medical ultrasound is a non-invasive method for imaging the body’s internal structures like organs. It processes by transmitting high-frequency sound waves into the body and measuring the reflections ...

Developers of diagnostic-ultrasound machines must carefully consider these devices’ design and their intended applications, making trade-offs among such factors as SNR (signal-to-noise ratio), channel ...

The Indus Doppler Flow Velocity System is a high-frequency, real-time pulsed Doppler measurement tool with built-in data processing software intended to assess small animals' cardiovascular health.

We have all heard the change in pitch when an ambulance or police car drives by with its siren blaring. The pitch is higher as the vehicle comes toward you, and shifts to a lower pitch as it goes away ...