Ultrasound Presentation 12000000000.pptx

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1. Ultrasound Theory and System O verview Presented by: LELE SIMO TYROLD MOREAU

2. TABLE OF CONTENTS 10/22/2021 A new era of customer value and satisfaction ULTRASOUND 1.1 Introduction 1.2 Basic Physics 1.3 Engineering Principle 1.4 Main part of an Ultrasound Machine 1.5 Different modes of ultrasound 1.6 Doppler Ultrasound 1.7 Attenuation of Ultrasound 1.8 Amplification in Ultrasound i

3. TABLE OF CONTENTS 10/22/2021 A new era of customer value and satisfaction ULTRASOUND 1.9 Boundaries 1.10 The shape of the scans from different transducers 1.11 The Probe working principle 1.12 System Interconnections 1.13 Trouble shooting flowchart in Ultrasound Machine 1.14 Some Siemens Ultrasound Machines ii

4. 1.1 INTRODUCTION 10/22/2021 01 A new era of customer value and satisfaction

5. ULTRASOUND 10/22/2021 02 1.2 Basic Physics Ultrasound is sound wave having frequency above 20000Hz

6. ULTRASOUND 10/22/2021 03 1.3 Engineering Principle

7. ULTRASOUND 10/22/2021 04 1.3 Engineering Principle Acoustic Impedance The amount of intensity reflected depends on the acoustic impedance z of the two materials at the interface. I = ∆ 𝑃  

8. ULTRASOUND 10/22/2021 05 1.4 Main part of an Ultrasound Machine 1. The Piezoelectric Transducer It is made up of piezoelectric crystal that changes electrical energy to mechanical energy by altering its dimension when a p.d is applied to either side of it.

9. ULTRASOUND 10/22/2021 06 1.4 Main part of an Ultrasound Machine 2. Flat Panel Display The monitor (viewing screen) should be at least 13 c m x 10 c m (or about 16 c m diagonally).

10. ULTRASOUND 10/22/2021 07 1.4 Main part of an Ultrasound Machine 3 . Control Panel

11. ULTRASOUND 10/22/2021 08 1.4 Main part of an Ultrasound Machine 4 . Transmitter Interface

12. ULTRASOUND 10/22/2021 09 1.4 Main part of an Ultrasound Machine 5 . Electronic Module PCBs

13. ULTRASOUND 10/22/2021 10 1.4 Main part of an Ultrasound Machine 6 . I/O Module

14. ULTRASOUND 10/22/2021 11 1.4 Main part of an Ultrasound Machine 7 . AC - DC Power Supply

15. ULTRASOUND 10/22/2021 1 2 1.5 Different modes of ultrasound A – Mode The echoes are shown as peaks, and the distances between the various structures can be measured.

16. ULTRASOUND 10/22/2021 13 1.5 Different modes of ultrasound 2. B – Mode The 2D images in which the echo amplitude is depicted as dots of different brightness.

17. ULTRASOUND 10/22/2021 14 1.5 Different modes of ultrasound 3 . M-Mode This mode way of displaying motion in a wavy line form and it is commonly used in Cardiac Ultrasound.

18. ULTRASOUND 10/22/2021 15 1.5 Different modes of ultrasound 4 . Real Time Mode This is another way of displaying motion in a wavy line form (commonly used in cardiac Ultrasound).

19. ULTRASOUND 10/22/2021 16 1.6 Doppler U ltrasound

20. ULTRASOUND 10/22/2021 17 1.6 Doppler U ltrasound Clinical applications of a Doppler unit There are two basic type of Doppler US unit In a continuous wave Doppler unit In a pulsed wave Doppler unit Other application include; 3. In a color Doppler unit 4. In a duplex Doppler system

21. ULTRASOUND 10/22/2021 18 1.7 Attenuation of Ultrasound High frequency are more readily absorbed and attenuated than lower frequencies.

22. ULTRASOUND 10/22/2021 19 1.8 Amplification in Ultrasound The echoes that returns from tissue that are found at long distance from the ultrasound unit need to be amplified and this is done by the Time-Gain C ompensation A mplifier.

23. ULTRASOUND 10/22/2021 20 1.9 Boundaries Ultrasound may be reflected or refracted (bent) when it meets the boundary between two different types of tissue.

24. ULTRASOUND 10/22/2021 21 1.10 The shape of the scans from different transducers Linear array Use in obstetrics and for scanning the breast and thyroid

25. ULTRASOUND 10/22/2021 22 1.10 The shape of the scans from different transducers 2. Sector scanner Use for upper abdomen and for gynecological and cardiological examination.

26. ULTRASOUND 10/22/2021 23 1.10 The shape of the scans from different transducers 3 . Convex transducer Use for all the parts of the body except for specialized echocardiography.

27. ULTRASOUND 10/22/2021 24 1.11 The Probe working principle 1 . Mechanical focus Use of a convex acoustic lens with low propagation speed of the US Use of ceramic with a concave front face Not configurable by the sonographer but very efficient.

28. ULTRASOUND 10/22/2021 25 1.11 The Probe working principle 2. Electrical focus Using delay lines Easily modular Can be coupled with a phase shift which ensures the oblique side of the US shot

29. ULTRASOUND 10/22/2021 26 1.12 System Interconnections

30. ULTRASOUND 10/22/2021 27 1.13 Trouble shooting flowchart in Ultrasound Machine

31. ULTRASOUND 10/22/2021 28 1.14 Some Siemens Ultrasound Machines ACUSON S1000 Touch ACUSON S2000 Touch ACUSON S2000 ABVS Designed for general imaging, vascular imaging and women's health ( Automatic breast volume acquisition system) allows rapid acquisition of all breast shots For general imaging, vascular and female imaging .

32. ULTRASOUND 10/22/2021 29 1.14 Some Siemens Ultrasound Machines ACUSON S3000 Touch ACUSON X700 ACUSON NX3 Designed for general imaging and interventional radiology Designed for high comfort and ease of use, the ACUSON X700 is the premium system in the ACUSON X series. R educes noise and artifacts during vascular exams, delivering high definition, for better detection of vascular lesions.

33. THANKS FOR LISTENING 10/22/2021 A new era of customer value and satisfaction 30