One of the best videos in this topic. I'm not talking about the beautiful presenter only but I'm talking also about the quality of this short video that it's understandable By the way, on 3:23 when she's talking about the r picks of 1,2,3, only 2 of them are represented and the third is not clear how it does look like
I'm currently going a project on innovating ECG machines in my Electronic Engineering course in uni and I was wondering if I could ask you a few questions.... First... Can you tell me what leads you used? why you used them over others and are they generally easy to use for portable use?
Internally the instrumentation amp measures the two active signals against GND and then subtracts these two signals from each other. In theory the GND can have any potential because the 50Hz from the mains should cancel out (there is only one mains!). In practice large noise at the active electrodes cannot be 100% canceled out because electrodes are not perfect nor the amp itself. So better to have a solid GND. Some ECGs even inject the inverted 50Hz back into the GND to minimize it even more (which is called right leg drive) but that's overdoing it I'd say!
One reason is how the heart is actually in your body. The more vertical is the smaller is the right chamber which pumps your blood in the lungs. If the right chamber is bigger then the lung causes a higher resistance. For example by tar through smoking or ageing. Other option is after a heartattack. The excitation might need to do 'detours' to travel from to to bottom. Having said that I'm a physicist so better ask a cardiologist. :)
Its the electrical axis of the heart. it has a normal value from -30 to 90 deg. depending on which way the axis deviates can help a doctor determine what is going on with electrical system and musculature of the heart.
Very good point. Because it's not needed for construct a vector in a two dimensional coordinate system. Most modern ECG machines actually won't measure it but rather calculate it from I and II.
Here is my axis angle calculator using Lead1 and Lead3: ozgur.bugs3.com/calculating-the-angle-of-the-heart-from-an-ecg/?lang=en For detailed explanations how it calculates : ozgur.bugs3.com/tag/ecg/?lang=en
I don't usually comment on youtube videos. But your videos are genuinely worth the effort. You are a very good teacher so please keep up the good work
Excellent video series on ECG. Thank you Vasso & BPM Biosignals!!!
excellent and very clear and understandable
One of the best videos in this topic.
I'm not talking about the beautiful presenter only
but I'm talking also about the quality of this short video that it's understandable
By the way, on 3:23 when she's talking about the r picks of 1,2,3, only 2 of them are represented
and the third is not clear how it does look like
Great video
really helped a lot
Thank u vasso.it is verry nice one.
At first i would like to say, that u r so preety & ur presentation is awesome. it is helpful.keep it up
1.16. Am I the only one to fall in love ?
By the way - beautiful explanation.
Thank you great explanation
I have finally understood this 😊🙌👏👏👏
thanks its clear and understandable
thanks, Pat! :)
thank you
did you just wink at me at 1:15 ?
also, thank you for making this video!
she wink you at 1:17
It was not a wink but the start of impulse at SA node.
I'm currently going a project on innovating ECG machines in my Electronic Engineering course in uni and I was wondering if I could ask you a few questions.... First... Can you tell me what leads you used? why you used them over others and are they generally easy to use for portable use?
What is the purpose of the ground electrode? - I've heard that it's for noise reduction, but how does it work? Thank you
Internally the instrumentation amp measures the two active signals against GND and then subtracts these two signals from each other. In theory the GND can have any potential because the 50Hz from the mains should cancel out (there is only one mains!). In practice large noise at the active electrodes cannot be 100% canceled out because electrodes are not perfect nor the amp itself. So better to have a solid GND. Some ECGs even inject the inverted 50Hz back into the GND to minimize it even more (which is called right leg drive) but that's overdoing it I'd say!
Thank you so much, it really helped a lot :-)
Any trick to memorise this
This is nice.. Cudos
Hi
What is the significance of getting angle of electrical field of the heart?
Cheers
One reason is how the heart is actually in your body. The more vertical is the smaller is the right chamber which pumps your blood in the lungs. If the right chamber is bigger then the lung causes a higher resistance. For example by tar through smoking or ageing. Other option is after a heartattack. The excitation might need to do 'detours' to travel from to to bottom. Having said that I'm a physicist so better ask a cardiologist. :)
Its the electrical axis of the heart. it has a normal value from -30 to 90 deg. depending on which way the axis deviates can help a doctor determine what is going on with electrical system and musculature of the heart.
❤
Why you have to take the third trace if you haven't use it?
Very good point. Because it's not needed for construct a vector in a two dimensional coordinate system. Most modern ECG machines actually won't measure it but rather calculate it from I and II.
BPM biosignals
Perfect! Thank you!
wow the presenter was used to be the actress in movie too! try google Her name !
I 💗 being taught by a Greek Goddess 😁😁
Waooooww
Here is my axis angle calculator using Lead1 and Lead3:
ozgur.bugs3.com/calculating-the-angle-of-the-heart-from-an-ecg/?lang=en
For detailed explanations how it calculates :
ozgur.bugs3.com/tag/ecg/?lang=en
The lady is more beautiful than lecture
She's hot
Who does ur eye brows? They look lil too much