Hello! Quick question- if there is high cell turnover- and choline peaks are high in malignancy like lymphoma- how was the abnormal spectro the one with low choline? Please let me know :)) thank you!
@LearnNeuroradiology
3 жыл бұрын
I think you're talking about the spectra at 3:34. Ah, I think that is a mistake in the peak labeling (and my explanation). I think that elevated peak in spectrum A is actually choline. So, the spectrum is correct but my explanation and labels are wrong. Thanks for the super observant comment! I think I have fixed this in a later version of this lecture and I'll fix it in this one eventually.
@youtubestopmakingmechangem8035
4 жыл бұрын
This sounds horrible but this video has made me feel better. Waiting for an mri result. I got the images and got scared by something j saw but he isnt pointing to anything similar to what i was worried a out.
@LearnNeuroradiology
4 жыл бұрын
I'm sorry to hear that you're anxious about getting your MRI result. If you have questions about your images, in most places you can either talk to your doctor or ask to talk to one of the radiologists who reviewed your images. They can help you understand what you are looking at and are usually happy to help.
@alifakhir1033
2 жыл бұрын
CNS Lymphoma hypointens in T2? In the images it is not!
@LearnNeuroradiology
2 жыл бұрын
Hypointense is relative, I suppose. If you check out the T2 (right panel 1:17), the portions of the tumor which are enhancing are definitely darker than the surrounding edema, which is much more typical of lymphoma than other tumors such as glioblastoma or metastases. Yes, I get what you are saying though, it is still brighter than the surrounding white matter (and maybe similar to gray matter.
@alifakhir1033
2 жыл бұрын
@@LearnNeuroradiology i got it, thanks a lot.
@tierraking4332
3 жыл бұрын
I had brain cancer now it's over and I have a scar on the back of my head
@LearnNeuroradiology
3 жыл бұрын
Sorry to hear. At least you were able to get this tumor resected. I wish you well!
@lamborghinidreamers8158
2 жыл бұрын
Sir can Non Contrasted CT scan shows or finds the brain tumour.
@immane75
6 жыл бұрын
Do you prefer mono or multivoxel? And why? We have a bran new 3 Tesla with Spectro on it ? Will be interesting to use but don t know how ???
@LearnNeuroradiology
6 жыл бұрын
I recommend that you do 2D CSI and cover the region that is abnormal and some surrounding normal tissue. You may find this link helpful: mriquestions.com/single-v-multi-voxel.html
@immane75
6 жыл бұрын
Thank you.
@marklepka3093
4 жыл бұрын
Thank you for the video 👍👍 I Tust you so, I will see what happens to me
@immane75
6 жыл бұрын
Do you perform spectro on evry scan for Tumor assessment ? Which one do you use long or short TE and why ?
@LearnNeuroradiology
6 жыл бұрын
We do not routinely do spectroscopy, but only for troubleshooting. It can sometimes be useful to differentiate a low grade tumor from encephalitis or other diagnosis. For tumors, long echo spectroscopy is preferred because it minimizes the minor peaks and noise while retaining Choline and NAA. Short echo is better for peds and metabolic disorders
@kishorkumarb3192
2 жыл бұрын
Sir, Can’t be this case is called as atypical meningioma, considering the significant vasogenic edema ?
@LearnNeuroradiology
2 жыл бұрын
meningioma, atypical meningioma, and anaplastic meningioma are pathology distinctions that are made ONLY on histology. You can't reliably differentiate them on imaging. Brain invasion on histology automatically makes it grade 2 or 3, along with some other features like number of mitoses. So, grade 1 meningiomas can have a lot of brain edema. If you think about it, this makes sense, because it can cause a lot of vascular congestion. If you see obvious brain invasion on post-contrast, you can suggest it is a higher grade meningioma. However, you still shouldn't use the phrase "atypical meningioma" because that is a pathology defined term.
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