Evaluation of a quarter wavelength matching layer transducer in abdominal scanning.
A focused ultrasonic transducer employing quarter wavelength matching technology is compared to one of conventional design. The effect of the 6 db improvement in signal-to-noise ratio is demonstrated.
D000005:Abdomen / Q000033:anatomy & histology*; D006801:Humans; D014159:Transducers; D014465:Ultrasonics / Q000295:instrumentation / Q000379:methods*; D014463:Ultrasonography