1. Ultrasound

2. Diagnostic Ultrasound High frequency sound waves emitted from sound source (transducer) Transducer placed on patient’s body Sound waves echo off interfaces of internal structures and return to transducer Information is processed and displayed on a monitor based on time and intensity of returning echo Special terms used on ultrasound reports –Echogenic, Hyperechoic, Hypoechoic, Anechoic

3. Ultrasound Principles

6. Ultrasound Abdomen

7. Diagnostic Ultrasound Interfaces are the signal source Major applications: –Gall bladder evaluation –Fluid collections –Differentiation of cysts from solid –Fetal evaluation –Solid organ evaluation, heart, liver pancreas, kidney Doppler ultrasound particularly useful for vascular flow

8. Ultrasound Machine

9. Ultrasound Machine in use

10. US 1 st Trimester Fetus

11. Cystic Hygroma

12. Brain Parenchymal Hemorrhage

13. Normal Liver US

14. Normal Liver – Common Duct Common Duct Portal Vein

15. Normal Gallbladder Ultrasound

16. Gall Bladder US Gallstones

17. Gallstones Ultrasound upper abdomen Longitudinal scan Round echogenic structures in gallbladder = stones Acoustic shadowing Bile is dark (anechoic)

18. MSU RADIOLOGY©2008 All rights reserved, Michigan State University Gerald R. Aben, MD 18 Normal Renal US Normal Right Kidney

19. MSU RADIOLOGY©2008 All rights reserved, Michigan State University Gerald R. Aben, MD 19 Normal Renal US Normal Right Kidney

20. MSU RADIOLOGY©2008 All rights reserved, Michigan State University Gerald R. Aben, MD 20 Renal Cyst

21. Endovaginal Imaging vessels

22. Pelvic Ultrasound IUD

23. Pelvic Ultrasound

24. The Older Patient

25. Appendicitis

26. Mucoceole Appendix

27. Testicular Torsion/ Infarction