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Midhuna Krishnan: Simplifying Doppler Effect and Ultrasonography Using the Feynman Method
Mar 4, 2026, 14:21

Midhuna Krishnan: Simplifying Doppler Effect and Ultrasonography Using the Feynman Method

Midhuna Krishnan, Student at Dr N.G.P. Institute of Technology, shared a post on LinkedIn:

“Exploring the physics behind diagnostic imaging

Simplifying Doppler Effect and Ultrasonography using the Feynman method.

This cheat sheet explains:

  • Frequency increases when blood moves toward the probe
  • Frequency decreases when blood moves away
  • Angle correction (less than 60  degrees) gives accurate velocity
  • Different ultrasound modes – A, B, M
  • How the frequency varies with different applications
  • Doppler modes – CW, PW, Color, Power, Spectral
  • Errors like aliasing and how to correct them

Clinical applications include:

  • Detecting blocked arteries
  • Measuring fetal heart rate
  • Diagnosing deep vein thrombosis (DVT)
  • Performing echocardiography

Simple concept.

Great impact.

Grateful for Sri Roshini R mam for turning topics into clear understanding .

Thank you for your guidance in Medical Physics .”

Midhuna Krishnan: Simplifying Doppler Effect and Ultrasonography Using the Feynman Method

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