Dopplera metode asins aprites izpetei tiklenes audos

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Dopplera metodeasins aprites izpetei tiklenes
audos

• Laura Vilkaua
• 14.12.2007.

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Doplera efekts

• ??/? v/c
• ?? change in wavelength
• ? wavelength
• v relative velocity (speed)
• c speed of radiation (in this case, light)

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Doplera vienadojums

• Vvelocity of blood flow
• F0 transmitting (transducer) frequency
• F1 returning frequency
• C constant speed of sound in blood
• f angle of incidence.

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Doppleru veidi

• "Bedside" or continuous wave Doppler.
• Duplex Doppler.
• Color Doppler.
• Power Doppler.

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Paldies par uzmanibu! ?

• ..jautajumi..