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Sonometrics Corporation Presents Sonomicrometry: basic principles.

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Presentation on theme: "Sonometrics Corporation Presents Sonomicrometry: basic principles."— Presentation transcript:

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2 Sonometrics Corporation Presents Sonomicrometry: basic principles

3 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

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

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

6 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

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

8 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

9 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

10 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

11 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

12 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

13 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

14 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

15 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

16 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

17 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

18 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

19 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

20 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

21 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

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

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

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

25 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 )

26 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

27 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

28 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

29 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

30 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

31 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

32 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

33 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

34 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

35 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

36 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

37 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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