Susceptibility weighted imaging vs T1. T2 axial lesions?

[Midori2013]

Hi guys

Quick Q. On MRI I notice on my T2 axial I can't see any spots. But, on the Susceptibility weighted imaging (SWI) portion of the exam there are a few, maybe ten, very small white spots.

For SWI, do lesions show up as white or black?

I know usually they appear white, wasn't sure if SWI image was different.


Thanks!!

[MSer102]

To put things in only black and white the last article about MRI's I read said that:

In T1 images MS lesions are black/enhancing lesions are white
In T2/FLAIR images MS lesions are white
In SWI images MS lesions are black

In one article I read there were MS lesions that didn't show on SWI.

If anybody knows or has read anything different I'd like to know too.

Sometimes what people think are lesions on their MRIs are really normal brain structures. Best not to make any conclusions until you've read the radiology report and talked to your neurologist.

[Midori2013]

Thank you so much! That explanation really was in black and white.

What are enhancing lesions btw? I am new to all this.


On my MRI ( which I would post, but I got a message saying I need four more posts before I can post a link lol) my SWI one has some tiny little white spots on it. Maybe ten. Would you know by chance what white could mean on SWI?

[22cyclist]

Enhancing lesions are lesions that show up bright after contrast. They are active lesions.

The white you see on SWI may be normal fluid spaces.

Lisa

[bamabelle]

The enhancing lesions are the active lesions or plaques.

Lesions in the spinal canal (or brain) most always show up on T2 weighted imaging, that is what the primary use of this sequence.

SWI can be used for a number of other reasons. T2 and T1 are the most important scans, in my opinion, as an MRI tech.

post images, if you can sometime.

Belle