Sample Spine TBS (Trabecular Bone Score) Report
The trabecular bone score (TBS) is a textural
measurement derived from lumbar spine dual-energy
X-ray absorptiometry (DXA) images.
It is an
index of bone microarchitecture that provides skeletal
information complementary to that obtained from standard
bone mineral density (BMD) measurement.
A software tool called TBS iNsight installs on existing
DXA
scanners and determines the TBS score by
estimating fracture risk based on bone
texture (an index correlated to bone microarchitecture)
in addition to risks determined by DXA bone density and
clinical risk factors. The patient doesn't receive any
additional radiation dose. The inclusion of a TBS score
report together with a bone density report offers the following
advantages:
■ It's a better predictor of fracture risk than DXA scores alone.
■ The TBS score is unaffected by abnormal bony outgrowths (osteophytes) on the spine of arthritic patients. In contrast, bone density scores of the spine are often abnormally high in people with osteoarthritis of the spine.
■ The TBS score is a better indicator of bone strength than a bone density T-score.
■ TBS determinations have high reproducibility with values ranging from 1.1% - 1.9% C.V.
■ The TBS report is generated simultaneously with the standard DXA spine printout so it's fast and doesn't involve any extra time.
The images below show examples of dense and porous trabecular bone in vertebrae. This is what the TBS software measures.
Images & captions courtesy of
TBS Insight, trademark of
Medimaps group.
For more information about the TBS report go to https://www.medimapsgroup.com/tbs-osteo/
1. GE spine TBS report
2. Hologic TBS spine report
GE DXA Body Composition Report
Hologic DXA Bone Density Report
Hologic DXA Body Composition Report
Mindways QTC Bone Density Report
General Sample Reports Web Page