Basic Ultrasound Physics for EM 

On RU-vid settings slow the video speed to 75, it works perfect

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

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!

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

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.

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

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

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

This is very well put. Thank you

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

Super helpful video! And I think the speed was perfect

Good job explaining...i am looking into this career and learning a lot from these videos.

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.

Great video! Thank you very much

Perfect and fast revision!!!

This video is excellent. Thanks very much.

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

Thanks for the great lecture.

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.

Thanks! really clear and helpful :)

This video is incredibly useful!

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

Very helpful. Thank you!

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

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

Superb - thank you!

very good job,thanks alot sir

Thanks, great video!

Nice video, thank you !

Amazing explanation

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.

Thank you, it helps a lot

this was so beneficial

Well done!

Thank you so much

Thanks so much!

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.

I am less worried about speed of sound and more about the speed of your video.

Amazing!

Thank you so much !!!!

very good sir

Thanks sit

Is there a transcript for this video?

Little bit explain slowly means it's better to more understanding....

Machines are calibrated at the assumption of the speed of sound in soft tissues at 1540 m/sec instead of at 1040 which you said at 2.35 minutes at your lecture, please review. Thank you

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 😊

Interesting. 😍

is ultasound has low amplitude?

Hi, very informative video. What font have you used for your text? Many thanks.

Thx

thank alot

That's like over half of Edelmans book in 17 min🤯😱

Also be careful with BART for Doppler colors. The speed colorbar shown on US displays will tell you unambiguously if the flow is towards or away from the transducer by looking at the color AND the corresponding positive or negative sign for the speed value. Don't just assume BART gives the proper interpretation.

There is a error! 2MHz is 2 000 000 Hz, not 200 000Hz...

Just to point out 200,000hz isn't equal to 2 mgz as you said in the beginning of the video. The correct conversion is... 2000000hz is actually 2mhz. Apologies if I misunderstood something , but great video nonetheless!

TKS BRIEF EXPLANATION

Soft tissue is typically assumed to be 1540 m/s, not 1040 m/s. Good video though!

2MHz is 2.000.000Hz. Very basic stuff.

2MHz=200,000Hz? or 2,000,000Hz

We use A scan

Awesome man...loved the lecture.only faced one problem...you talk so fast...I had to reduce the speed...but the lecture was awesome...will look the rest of the lectures now to learn what many teachers usually never talk about.... In indopak region, the teachers never teach you just so that no one can replace them.they will rob you off your money but you will get nothing at the end of 6 months unfortunately.... Once I mentioned the B mode and A mode modalities and the teacher got furious and he said there is no such thing like B mode or A mode. Now what to do with such a person. 90% of the echo reports formed at even the major hospitals in kpk, Pakistan are damn damn inaccurate.quackery is practiced at its worst but I refuse to practice any such quackery.... Let me amaze you now 😵 it takes atleast 20-30 min to perform one examination but here in my country it takes 2-3 mins only.... Now decide what kind of echo report would that be...thanks to RU-vid that gave me teachers from around the world

Can anyone tell me if it is possible to stop ultrasound waves that are being directed at me by my upstairs neighbors?

2Mhz is not 200,000 is 2 ,000, 000hz , please correct it.

I love this I like ultrasound the ultrasound is so legit :)

Why would you mess up such a good video by talking so fast. What's the hurry! I'm looking for a 0.5x speed.

Very fast but good information

Oh my goodness it would help if you would talk a little slower. What’s the rush? Other than that it’s great info!

I thought the average speed in soft tissue is 1.540 m/s

OMG

Okay 4

Very useful information but talk too fast and no bread in between.

Playback speed infinity Thanks though

OKC ✅☺️ a

I’m pretty sure through tissue is 1540 and no 1040.

Sound in tissue on average 1540 m/s or 1.54 mm/us

talks so fast. whats the hurry ??????

Good job explaining, but wish you didn't talk so fast

Can u please just slow down

Un necessary Very fast

you talk so fast.... loved the fact that the video explained everything but wasn't 2 hours long, but please talk slower next time.....

TOO FAST

Please speak more slowly 👍🏻

I am sorry but this was hard to understand only due to your speech... your speaking style in this video is not clear at all. If this was written text there would be no punctuation. I had to slow it down and rewind quite a few times too.