If we cut carotid artery, jugular vein through a transverse view, why does that color doppler have opposite color in two vessel ? the ultrasound bean is travel "perpendicular" to the vessel , shouldn't it show no signal on color doppler?
If you have a vessel lying horizontally on the screen and an un-steered color Doppler box, then yes, there is a 90 degree angle and there is either no Doppler shift at all or sometimes little blips of flow (if the vessel has just a hint of an angle to it). If either the color Doppler box is steered (to the right or to the left), and/or the vessel lies at a slight angle (it’s slightly vertical rather than horizontal on the screen), then you will have enough of an angle to visualize a Doppler shift and obtain a Doppler signal. And this will occur whether the vessels are cut from a transverse or a sagittal plane. There is opposite colors in the two vessels because they are traveling two different directions (artery vs vein).
Draw an imaginary line through the middle of the vessel, parallel with the vessel walls. The slant, or angle of this line is the lie of the vessel. Great question! I’ve been getting this question a lot. Mini video coming soon on this topic!
The box angle is the direction that the color Doppler box is steered (angled). It can be un-steered (straight) or steered towards the right, or steered towards the left.
Yes, I completely agree. I added music to some videos on this channel after a viewer complained that there was no music. But, when I started adding music I received a ton of complaints. All my newer videos have no music, and I will not be adding music to any of my future content. Thanks for watching!
My deepest apologies…I’m slowly going through my videos and editing the transcripts one by one. With over 200 videos it’s proving to be a daunting task, thanks for your patience.
Thank you for your reply. Further, I feel that UA-cam too must use some technology like AI to develop automated spell check as per the subject of discussion, with punctuation marks, and capitalisation at appropriate places such as first letter of sentences, abbreviations etc.
Many thanks . You are one of the best youtube lecturers that I have ever seen and listened to.
Wow! Thanks for the kind words! And thanks for watching!
Your voice is so soothing thank you so much for this explanation.
Thanks so much for the kind words ❤️
the wonderful professional easy-to-remember whit logic course of the presentation.Thanks
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Very educative and simplified. Thanks so much
The best video out there ……..
I really appreciate the kind words!
The best teacher……
Thanks so much! That means a lot!
Thank u so much! This helps so much!
Glad it helped!
Thank you that is very helpful thank you for helping.
Thanks so much for your kind words!
Thank you so much. This was very helpful! I was so confused on this particular subject but I get it now. Thanks again.
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If we cut carotid artery, jugular vein through a transverse view, why does that color doppler have opposite color in two vessel ? the ultrasound bean is travel "perpendicular" to the vessel , shouldn't it show no signal on color doppler?
If you have a vessel lying horizontally on the screen and an un-steered color Doppler box, then yes, there is a 90 degree angle and there is either no Doppler shift at all or sometimes little blips of flow (if the vessel has just a hint of an angle to it).
If either the color Doppler box is steered (to the right or to the left), and/or the vessel lies at a slight angle (it’s slightly vertical rather than horizontal on the screen), then you will have enough of an angle to visualize a Doppler shift and obtain a Doppler signal. And this will occur whether the vessels are cut from a transverse or a sagittal plane. There is opposite colors in the two vessels because they are traveling two different directions (artery vs vein).
@@SonographyMinutes thanks for reply!
How do u determine which way the vessel lies? This part confuses me
Draw an imaginary line through the middle of the vessel, parallel with the vessel walls. The slant, or angle of this line is the lie of the vessel. Great question! I’ve been getting this question a lot. Mini video coming soon on this topic!
confused since 4:22, what is box angle ???
The box angle is the direction that the color Doppler box is steered (angled). It can be un-steered (straight) or steered towards the right, or steered towards the left.
This is a really great and helpful video, thank you! I only wish you didn't have the music, it's distracting unfortunately
Yes, I completely agree. I added music to some videos on this channel after a viewer complained that there was no music. But, when I started adding music I received a ton of complaints. All my newer videos have no music, and I will not be adding music to any of my future content. Thanks for watching!
Kindly edit the transcript. It has no punctuation marks. Also there are errors of spellings. May be because it is auto-generated.
My deepest apologies…I’m slowly going through my videos and editing the transcripts one by one. With over 200 videos it’s proving to be a daunting task, thanks for your patience.
Thank you for your reply. Further, I feel that UA-cam too must use some technology like AI to develop automated spell check as per the subject of discussion, with punctuation marks, and capitalisation at appropriate places such as first letter of sentences, abbreviations etc.
great lecture - it could have done without the background music. Its very distracting.
💋👍👍👍👍👍👍👍👍👍❤
Thanks so much!
thank you!