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39 Cards in this Set
- Front
- Back
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information obtained on ultrasound
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stuctures
vascular function solid vs. cystic real-time information |
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information reported from ultrasound
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sonographic appearance
measurements differential diagnosis most likely diagnosis |
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reasons to request ultrasound
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anatomical pictures
physiology information assessment of stucture assessment of pregnancy assessment of cardiac function assessment of blood flow intervention decision making invasive procedures |
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contraindications of ultrasound
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procedure related
uncooperative patient |
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advantages of sonography
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non invasive
painless portable real time eval. with dynamic images inexpensive |
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risks associated with ultrasound are...
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none
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principles of ultrasonography
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B-scan
M-mode scan real time doppler color flow doppler duplex scanning |
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ultrasound used for...
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abdomen
OBGYN echocardiography breast neurosonography vascular sonography procedures structure evaluation |
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energy source for ultrasound
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high frequency sound waves
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factors that interfere with ultrasound
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air/gas
obesity patient movement skin contact |
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dense ultrasound structure shows
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brighter, shadows
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fluid ultrasound structures shows
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darker, posterior enhancement
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characteristics of simple cyst on ultrasound show
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through transmission
anechoic smooth borders posterior enhancement |
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Abdomen complete ultrasound will show...
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RUQ, midline, LUQ, abdominal vasculature, renal
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3 types of pelvis ultrasound
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standard
transvaginal transrectal |
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obstetrics ultrasound for pregnancy will show...
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location, number, gestational age, growth rate, placenta, fetal position
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obstetrics ultrasound for fetal health will show...
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heart rate, breathing, movement, muscle tone, amniotic volume
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gynecology ultrasounds show...
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irregular bleeding
pelvic pain pelvic mass urinary incontinence disorders |
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echocardiography ultrasound show...
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cardiac chambers
cardiac valves cardiac wall motion pericardium blood flow |
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breast ultrasound show...
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solid vs. cystic
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neurosonography ultrasound show...
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brain and spinal cord
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vascular sonography for abdomen show...
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abdominal aorta
renal |
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vascular sonography for peripheral show...
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carotid
extremities |
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MRI uses
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magnetic field
radiotransmitter and receiver computer |
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energy source for MRI is
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radiofrequency waves and magnetic field
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types of MRI are...
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routine
magnetic resonance angiography spectroscopy functional magnetic resonance imaging |
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risks associated with MRI are...
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movement and heating of ferrous material
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adverse affects/counterindications/ interference
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related to movement of implants
heating of metallic objects patient status obesity |
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reasons to request MRI
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soft tissue
bone and joints neural tissue blood flow |
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study of MRI show
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anatomical and physiology information
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multiple types of images for MRI
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T1 (fluid dark, like CT) and T2 (fluid bright)
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can do MRI in multiple planes
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axial
saggital coronal |
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sound waves are transmitted well through...
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fluid, but not air, bone, or contrast material
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B scan
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series of dots
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M-mode scan
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motion of heart over time
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real time imaging
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display rapid sequence of images instantenously
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doppler ultrasound
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not static and picks up different frequency of ultrasound waves, better the flow, the faster the RBCs move by stationary ultrasound beam, greater the frequency distortion
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color flow doppler imaging
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used to determine direction and velocity of blood flow (heart valve regurgitation, heart defects)
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duplex scanning
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real time imaging + color flow doppler imaging (help with plaque, aneurysms, reanl or liver transplants)
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