origin of signal from bone in musculoskeleton imaging protocols

[aelster]

(07-23-2016 05:50 AM)gautam Wrote:  Since most of my work has been in neuroimaging, I have long held the view that bone (i.e skull) appears dark because of very short T2 for highly structured biomaterials like bone. Recently, I have been looking at Imaging for other body parts, specifically MSK protocols, where one can also see the bone as bright / moderately hyperintense structure in the image. I am wondering, how does the bone appear with such sufficient signal in these protocols? What parameters (and how) are used to make the bony structures appear visible (and bright) ?
If there is a section on this site that already covers this, please direct me to it.
Thanks,
Sid.

Not sure what you are looking at, but bone contains marrow (blood elements and fat), vascular channels, and especially in the spine, hemangiomas (venous malformations). Any of these can appear bright on certain pulse sequences.