title: Transducer for monitoring respiration during imaging procedures.
abstract: A transducer system for monitoring respiration is described; it uses a 'liquid column' sensor with a remote integrated circuit pressure module. It was designed primarily for non-invasive monitoring and control of respiration during diagnostic imaging procedures, but has also found applications in other areas, e.g. physiotherapy and pulse monitoring. The device is a new version of a system developed several years ago and takes advantage of relatively low cost commercial 'building blocks'. The output is an analogue voltage (from a low impedance source) capable of driving a wide range of recorders, amplifiers and computer interfaces. Reference is also made in the text to a bio-feedback signal processing and display unit (described elsewhere) which, when used with this transducer, provides a versatile respiratory control system.
authors.affiliation: Medical Physics Department, Southmead Hospital, Westbury-on-Trym, Bristol, UK.
authors.forename: K R
authors.initials: KR
authors.lastname: Jones
mesh_terms: D003952:Diagnostic Imaging / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D012119:Respiration; D014160:Transducers, Pressure