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Radiofrequency Echographic Multi-Spectrometry

How REMS® works.

Echolight REMS® reads the acoustic signature of your bone — density, internal architecture, and structural quality — in real time, with no radiation. Here is what happens during a scan, and why it sees what density alone cannot.

01 The scan

The echo carries the structure.

A probe is placed at your lumbar spine and proximal femur — the same sites a DEXA would measure. The sound wave enters. The echo returns. Everything that isn't load-bearing bone is filtered out.

The echo carries your bone's acoustic signature: density, internal architecture, the structural quality of the tissue itself. No two are alike.

What's left is read against a reference database of 10,000+ real patients, matched to your age, sex, and body size. Some of their bones held. Some broke under low force. Your result tells you where you rank, and which one yours resembles.

No radiationSafe to repeatSame-day results
Image Probe placement, lumbar spine
Precision

Real change at 6 months shows up.

Meaningful bone structural change is measurable in as little as six months. The technology has to be precise enough to detect it.

<0.5%
REMS® precision error
02 Why REMS® makes the difference

Benefits and advantages of REMS®.

REMS® combines clinical advantages that no other bone health assessment provides in a single technology.

Radiation-free

A safer alternative for regular bone health monitoring, including patients already undergoing radiation treatment.

Measures more than density

Beyond bone mineral density, REMS® reports microarchitecture and composition — a fuller picture of bone strength than density provides alone.

Microarchitecture analysis

Evaluates trabecular thickness and connectivity, cortical thickness, and porosity of bone.

5-year fracture risk

An estimated probability of fracture over the next five years, calculated from your bone mineral density and Fragility Score.

Accurate for complex patients

Validated across conditions like type 2 diabetes, osteoarthritis, scoliosis, and rheumatoid arthritis, where density alone can mislead.

Real-time imaging

Bone properties visualized and analyzed within minutes, in the room.

Earlier detection

Monitors bone health earlier in life and more often than radiation-based methods allow — safe during pregnancy and pre-menopause.

Pre-surgical assessment

Bone evaluation prior to joint replacement or spine fusion surgery to inform surgical planning.

Mobile delivery

Portable technology used in various care settings. We bring it to your practice, organization, or home.

03 Four data points per scan

Bone density. Bone quality. Fracture risk. Body composition.

Every REMS® assessment scans the lumbar vertebrae (L1–L4) and femoral neck — the same sites as DEXA. From a single, radiation-free scan, REMS® delivers four distinct measurement categories: a broader read than density alone.

01

Bone Mineral Density

BMD measured in g/cm² at the lumbar vertebrae and femoral neck, plus T-Score and Z-Score. The standard parameters for osteoporosis diagnosis your physician already reads.

02

Fragility Score

A 0–100 score capturing internal bone structure and microarchitecture. Independent of BMD. The measurement DEXA cannot produce.

03

5-Year Fracture Risk

Fracture probability for spine and hip in the next five years, calculated from your specific density and bone quality data.

04

Body Composition

Body fat percentage, basal metabolic rate, and visceral fat assessment, all from the same scan.

04 What DEXA actually measures

DEXA measures density. That's one piece of the picture.

It measures how much mineral is there — one dimension of bone strength, not the whole picture. Here is how the two approaches differ.

 
DEXA
REMS®
What it measures
Mineral density only — one dimension of strength.
Density plus internal structure, architecture, and quality.
Fracture risk
Estimated separately via FRAX — guesses from age, weight, and history. Not from your bone.
Calculated directly from your own density and quality data.
Bone quality
Optional TBS software layer guesses quality from image texture. Spine only. Feeds back into FRAX. Two guesses stacked.
Read directly from the bone's acoustic signature.
Radiation
Uses ionizing radiation.
None. Safe to repeat as often as needed.

Neither FRAX nor TBS reads the structure of the bone itself. REMS® does.

Echolight REMS® Technology Brochure
Full technical overview — PDF. (File to be added.)
Download brochure
See it in action

See what your bones are really doing.

REMS® assesses bone health; it does not diagnose or treat disease. Assessment results are shared with you and, at your request, your physician. MobileREMS by Longevia is an independent mobile assessment service.