Diagnostic Ultrasound High frequency sound waves emitted from sound source transducer Transducer placed on patients body Sound waves echo off interfaces of internal structures and return to transducer ID: 428736
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UltrasoundSlide2
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
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Ultrasound PrinciplesSlide4
Ultrasound PrinciplesSlide5
Ultrasound PrinciplesSlide6
Ultrasound AbdomenSlide7
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, kidneyDoppler ultrasound particularly useful for vascular flowSlide8
Ultrasound MachineSlide9
Ultrasound Machine in useSlide10
US 1
st
Trimester FetusSlide11
Cystic HygromaSlide12
Brain Parenchymal HemorrhageSlide13
Normal Liver USSlide14
Normal Liver – Common Duct
Common Duct
Portal VeinSlide15
Normal Gallbladder UltrasoundSlide16
Gall Bladder US
GallstonesSlide17
Gallstones
Ultrasound upper abdomen
Longitudinal scan
Round echogenic structures in gallbladder = stones
Acoustic shadowing
Bile is dark (anechoic)Slide18
MSU RADIOLOGY
©2008 All rights reserved, Michigan State University Gerald R. Aben, MD
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Normal Renal US
Normal Right KidneySlide19
MSU RADIOLOGY
©2008 All rights reserved, Michigan State University Gerald R. Aben, MD
19
Normal Renal US
Normal Right KidneySlide20
MSU RADIOLOGY
©2008 All rights reserved, Michigan State University Gerald R. Aben, MD
20
Renal CystSlide21
Endovaginal Imaging
vesselsSlide22
Pelvic Ultrasound IUDSlide23
Pelvic UltrasoundSlide24
The Older PatientSlide25
AppendicitisSlide26
Mucoceole AppendixSlide27
Testicular Torsion/ Infarction