I'm a neurologist and watched this from start to finish! Will be definitely recommending to my residents and I myself am also aiming to watch your other videos to refresh and add on to my neurorad knowledge!
Excellent as always! Just one question: we always do a coronal Flair in our department. Is it ok to do the assessment of GCA on that one or does it have to be an axial image?
Technically speaking the GCA-scale was developped based on axial images, but once you learned how to use it, I believe you could provide a reliable estimation on coronal FLAIR images as well. I would personally feel more comfortable using axial images, and if the intent is to do an evaluation becaus of suspected dementia, I would not find it sufficent. For a general examination, I believe it would suffice. In the end, the GCA-scale is just a subjective and reader-dependent tool to give a rough estimate on the severity of cerebral atrophy. It's no rocket science, but a tool that allows us as radiologist to give an idea on the severity of atrophy. It's also very subjective. The thing I always tell my residents that it's not the goal "to get it right", becaus a "severe GCA 1" for one radiologist will be a "mild GCA 2" for the other. The idea is that we can give a rough idea to our reffering physician. If reader 1 says: it's GCA 0 and reader 2 says it's GCA 3 --> then one of them must be wrong. If reader A says it's GCA 1 and reader 2 it's GCA 2 --> no point in arguing about.
No, no personal preference, or well, maybe a very slight one for FS FLAIR. FS FLAIR can be useful for somewhat better depiction of skull lesions, but in daily practice most patients don't have skull lesions.
I suffer alot... I have alot of right sided upper teeth pain, right sided nasal cavity pain, right sided throat pain, chest pain, neck stiffness, headache. I feel liquid, horrible preassure in my neck, brain. Right side of my chest is swollen, same to my neck and bone behind me eight ear is swollen, top of my skull is bulgin i lost consiusness for a while. I have symptoms of quadriplegia, light sensitivity. I have eaten antibiotics, cortisone that is not desscriped for me, those were my mothers but those help in my pains, headaches. I went to brain CT, MRI after losing my consciousness for a while, they said everything is ok... Im feeling like im dying... I can't lay down, bend down or I can't get up, having difficulty to breath, sleep paralysis if i lay down. Light sensitivity, confusion, bulging of my eyes, redness, pain in my eyes... Im confused.... I should not take my mothers antibiotics, cortisone but i was so scared... I haven't exprienced anything like this... Im not ok... I have really hard time to focusing anything... I can only sleep in sitting position... Everything feels strange... I have sense of doom and i think i will die.... I hope my family get that justice i deserve... Im frustrated, angry, confused, memory/mind is not working and my eyes hurt alot..
Hey Sven, Wil je voor ons een presentatie geven betreft ‘imaging of the optic pathway?’ Van de orbita tot aan fissura calcarina, misschien Ook interessant voor ons presentatie over orbita beeldvorming? Alvast bedankt!
Actually that's not a silly question at all. It is technically possible to create radiological images in colours and radiologists / scientists have actually done so in the past. There are several reasons why radiological images are generated in shades of gray. The basics: CT images provide a visual representation of physical differences in tissue density, and MR images show us differences in signal intensity. These differences can very easily be translated in a visual gray-scale, so the gray-scale offers a very easy and consistent visual translation of phyiscal differences in density or signal intensity. The human eye is apparantly also most sensitivy for differences in shades of gray compared to other colours. Using colours would also add a lot of complexity to the image, but by systematically and consistently using gray-scales radiological images are generated in such a way that they allow easy comparison with other or previous images, or images generated with other machines by other vendors. THen there's the factor: we're used to it now! It takes several years to become a radiologists, and once radiologists are trained in detecting subtle gray-scale differences, it wouldn't make sense to have them to redo that whole visual training process by creating images in different colour-scales. Final reason I can think of is that, if we were to translate differences in signal intensity or tissue density in different colours, we would need to add an extra layer of date transformation to the postprocessing process, making the process longer and more complex without necessarily changing the diagnostic value of the image.
Please never stop doing videos. Your such a perfect educator!!
I'm a neurologist and watched this from start to finish! Will be definitely recommending to my residents and I myself am also aiming to watch your other videos to refresh and add on to my neurorad knowledge!
Perfect as always! A complete radiologist with a enormous knowledge and experience!
I wish I had a teacher like you when I started working. Thank u
Thank you for such an amazing and concise lecture. Much appreciated
Im a Radiology Resident, and your video gives a head start! Thank You!
This is some GOLD content.please make such content frequently🙏🏻
I'll try :)
Thank you so much for your videos, they are an amazing resource for learning!
Thanks for sharing! Great lecture as always
Thank you for this perfect overview.👍
Useful for senior radiologist too! Thank you 🤗
Very perfect sir ! the approch is very nice. Request more such informative videos
VERY WELL EXPLAINED! Thank you!!!
Thank you doctor
Great presentation
Awesome! Keep up the good job.
Thank you for good lecture
Please do one on ct brain
Excellent!! ❤❤❤ Thank you!
Thank you so much. I did not watch better videos on this topic!
thanks, much appreciated!
Well explained 🥰
Is there need to scan the entire spine to ? Lesions in the cord?
Thank you very much Doctor
Mil gracias, excelente clase maestra.
you are much, much appreciated!
Excellent as always! Just one question: we always do a coronal Flair in our department. Is it ok to do the assessment of GCA on that one or does it have to be an axial image?
Technically speaking the GCA-scale was developped based on axial images, but once you learned how to use it, I believe you could provide a reliable estimation on coronal FLAIR images as well. I would personally feel more comfortable using axial images, and if the intent is to do an evaluation becaus of suspected dementia, I would not find it sufficent. For a general examination, I believe it would suffice. In the end, the GCA-scale is just a subjective and reader-dependent tool to give a rough estimate on the severity of cerebral atrophy. It's no rocket science, but a tool that allows us as radiologist to give an idea on the severity of atrophy. It's also very subjective. The thing I always tell my residents that it's not the goal "to get it right", becaus a "severe GCA 1" for one radiologist will be a "mild GCA 2" for the other. The idea is that we can give a rough idea to our reffering physician. If reader 1 says: it's GCA 0 and reader 2 says it's GCA 3 --> then one of them must be wrong. If reader A says it's GCA 1 and reader 2 it's GCA 2 --> no point in arguing about.
Thank you sir
Hi can you point me to the neuroradiology mri sequences video please?
@@shastriramroop4815 sure, here is the link: ruclips.net/video/bAl3ht-kpVk/видео.htmlsi=jw4CFfDqunMZT0XR
@@theneuroradiologist thank you
Thanks so much! Do you have a preference regarding fat-saturation on FLAIR images? I noticed both FS and non-FS in your examples
No, no personal preference, or well, maybe a very slight one for FS FLAIR. FS FLAIR can be useful for somewhat better depiction of skull lesions, but in daily practice most patients don't have skull lesions.
@@theneuroradiologist Thank you!
Thank you so much!
Super!!! 👏
Thank you!
Much appreciated.
Very nice
I suffer alot... I have alot of right sided upper teeth pain, right sided nasal cavity pain, right sided throat pain, chest pain, neck stiffness, headache. I feel liquid, horrible preassure in my neck, brain. Right side of my chest is swollen, same to my neck and bone behind me eight ear is swollen, top of my skull is bulgin i lost consiusness for a while. I have symptoms of quadriplegia, light sensitivity. I have eaten antibiotics, cortisone that is not desscriped for me, those were my mothers but those help in my pains, headaches. I went to brain CT, MRI after losing my consciousness for a while, they said everything is ok... Im feeling like im dying... I can't lay down, bend down or I can't get up, having difficulty to breath, sleep paralysis if i lay down. Light sensitivity, confusion, bulging of my eyes, redness, pain in my eyes... Im confused.... I should not take my mothers antibiotics, cortisone but i was so scared... I haven't exprienced anything like this... Im not ok... I have really hard time to focusing anything... I can only sleep in sitting position... Everything feels strange... I have sense of doom and i think i will die.... I hope my family get that justice i deserve... Im frustrated, angry, confused, memory/mind is not working and my eyes hurt alot..
Meningitis.
Brother start antibiotics
Hey Sven,
Wil je voor ons een presentatie geven betreft ‘imaging of the optic pathway?’ Van de orbita tot aan fissura calcarina, misschien
Ook interessant voor ons presentatie over orbita beeldvorming?
Alvast bedankt!
Sure, got one in the making :)
Это круто, спасибо ❤❤❤❤❤
I had a traumatic head injury. My CT was unremarkable. I asked my doctor for an MRI about a month later, and he said no.
This maybe a silly question, but here goes. Would it be better in colour?
Actually that's not a silly question at all.
It is technically possible to create radiological images in colours and radiologists / scientists have actually done so in the past. There are several reasons why radiological images are generated in shades of gray.
The basics: CT images provide a visual representation of physical differences in tissue density, and MR images show us differences in signal intensity. These differences can very easily be translated in a visual gray-scale, so the gray-scale offers a very easy and consistent visual translation of phyiscal differences in density or signal intensity.
The human eye is apparantly also most sensitivy for differences in shades of gray compared to other colours. Using colours would also add a lot of complexity to the image, but by systematically and consistently using gray-scales radiological images are generated in such a way that they allow easy comparison with other or previous images, or images generated with other machines by other vendors.
THen there's the factor: we're used to it now! It takes several years to become a radiologists, and once radiologists are trained in detecting subtle gray-scale differences, it wouldn't make sense to have them to redo that whole visual training process by creating images in different colour-scales.
Final reason I can think of is that, if we were to translate differences in signal intensity or tissue density in different colours, we would need to add an extra layer of date transformation to the postprocessing process, making the process longer and more complex without necessarily changing the diagnostic value of the image.