Basic Ultrasound Physics for EM

CORRECTION: 0:29 Megahertz = million hertz so 2 Megahertz is 2,000,000 hertz.

CORRECTION: 2:26 Speed of sound though soft tissues ranges from 1450 m/s (adipose) to 1580 m/s (muscle) and most ultrasound systems assume a default speed of sound of 1540 m/s for "tissue".

The video has an error of 1080 m/s listed (totally missed it during editing, thank you Ken Rolt for catching it).

Video reviewing basic ultrasound physics, ultrasound modes, artifacts, probes types, and imaging planes with orientations.

twitter: @takeokun

For informational and educational purposes only. Does not replace formalized medical education and/or credentialing. Presented "as is".

[irahi]

On YouTube settings slow the video speed to 75, it works perfect

[Nitrox-.]

This is an amazing video. Just quick fire, well explained most relevant information. Helped me so much to compensate for the horrible lecture I got. Somehow my professor spent 4 hours explaining mostly the same things and I didn't understand a thing.

[gregorycostello]

I am a physician ready to get started in point of care ultrasonography, . What a great review of the fundamentals! This really made my studying make much more sense. Your diagrams and animation are incredibly informative Thank you!

[MartaCrowe]

Thank you for making this! I've been designing in ultrasound for 2 years and this is the most helpful video on US physics I've seen yet.

[ellasnow]

Thank you!! That condensed hours worth of pre-reading for my POCUS course!! You're a legend.

[hannahirvin]

I have done ultrasound a few years and I had gotten foggy on the physics. This covers the most important physics as fast as possible.

[kenrolt]

Speed of sound in tissue, at 2:24 in the video, is not around 1040 m/s. It's in the range of 1450 to 1580 m/s depending on the tissue type. Ultrasound machine default speed assumed for soft tissue is 1540 m/s because it's a weighted average of what's most likely to be encountered in a scanning session.

[facesunderwater]

This video is wonderful. You explain attenuation of high & low frequencies very nicely. Thanks!

[filipamk]

Thank you for taking the time to do this video! Extremely helpful 🙂

[canicekosi]

Thank you so much for this video. Been studying it for almost 2hrs now

[fjs]

Jason, that is very interesting. I've worked with Phased Array Radar elements and RF, this is basically phased array for ultrasound. Amazing!!

[erayk]

Perfect video. Completely answered all my quriosity about how it works. Thank you.

[javedahmad]

This is an excellent video. Thank you so much. I am using it for teaching purpose. It saved a lot of my time. Very nice presentation, very well prepared and very well presented, I would suggest to be a bit slower so that the trainees grasp it without too much pause. Thanks a lot for the efforts.

[khudhurm]

This video has answered most of my questions on ultra sound imaging (basics), Thank you :)

[estherssebbowa]

Great video - a summary of almost everything in under 20!

[qeuwcjf]

Super helpful video! And I think the speed was perfect

[rashmiks]

Thank you very much sir, very informative for understanding the basics of ultrasound 🙏🏻

[lolwaha]

You literally saved my future!! Thanks alot❤️❤️❤️

[TageldinAbogrounDr]

Thank you very much for your helpful and formative video ❤🎉 but an average value of speed of sound in soft tissue is 1540 m/s 😊

[papaschlumpf]

My man is speed running a whole topic of medical diagnosis in a sub 20 run