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Published byRonald Rawlinson Modified over 2 years ago

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Sonometrics Corporation Presents Sonomicrometry: basic principles

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Sonometrics Corporation Basic Principles Theory of Operation Theory of Operation –Construction of a crystal –Types of crystals available –Signals: direction and function –Calculation of distance Sample Application – Ventricular Volume Sample Application – Ventricular Volume –Crystal placement –Representative data

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Sonometrics Corporation Epoxy covers the head Theory of Operation –Construction of a crystal Wire : copper Head diameter: - 2mm - 2mm - 1mm - 1mm mm mm

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Sonometrics Corporation Theory of Operation –Construction of a crystal Epoxy covers the head Wire : Stainless steel Head diameter: - 2mm - 2mm - 1mm - 1mm mm mm

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Sonometrics Corporation Theory of Operation –Construction of a crystal Epoxy covers the head Wire covered by Silastic tubing for chronic studies Epoxy covers the head Head diameter: - 2mm - 2mm - 1mm - 1mm mm mm

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Sonometrics Corporation Theory of Operation –Piezo electric transducers: u Crystal #1 sends a sound wave …crystal #2 receives signal transmitter Receiver

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Sonometrics Corporation Theory of Operation Receiver Transmitter u Crystal #2 sends a sound wave …crystal #1 receives signal –Piezo electric transducers: transceiver: u Crystal #1 sends a sound wave …crystal #2 receives signal

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 1 sec Time of flight Distance = 1.5 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 2 sec Time of flight Distance = 3 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 3 sec Time of flight Distance = 4.5 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 4 sec Time of flight Distance = 6 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 5 sec Time of flight Distance = 7.5 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 6 sec Time of flight Distance = 9 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 7 sec Time of flight Distance = 9.5 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 8 sec Time of flight Distance = 11 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 9 sec Time of flight Distance = 12.5 mm mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 10 sec Time of flight Distance = 14 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 11 sec Time of flight Distance = 15.5 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 12 sec Time of flight Distance = 17.5 mm

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Sonometrics Corporation Theory of Operation Receiver transmitter –Piezo electric transducers: transceiver: u Time of flight distance = v * T u v = 1540 m/sec 12 sec Time of flight Distance = 17.5 mm

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Sonometrics Corporation Theory of Operation –Ultrasonic pulses propagate in all directions –Ability to network with all others in array –No crystal alignment required

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening base posterior anterior wall thickness

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Sonometrics Corporation Sample Application – Ventricular Volumeseptal free wall base posterior apex anteriorseptum posterior anterior RV LV

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex Segment shortening shorteningposterior anterior Wall thickness thickness base15 10 ED ES Time Volume Wall thickness Distance ( mm )

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Sonometrics Corporation Sample Application – Ventricular Volume t Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbaseVolume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex Segment shortening shorteningposterior anterior Wall thickness thickness base15 10 Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex segment shortening shortening posterior anterior wall thickness thicknessbase15 10 Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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Sonometrics Corporation Sample Application – Ventricular Volume Left ventricle Left ventricle apex Segment shortening shorteningposterior anterior Wall thickness thickness base Time Volume Wall thickness Distance ( mm ) Time Volume Wall thickness Distance ( mm ) ED ES

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