
REMS Echolight is a radiation-free ultrasound bone density scan of the spine and hip, now available in Chandler, AZ. Serving Phoenix, Scottsdale, Mesa, Gilbert and Tempe. Book with URPrecious Imaging.
Dr. Meghna Krishnan, a board-certified breast and body imaging radiologist at URPrecious Imaging in Chandler, Arizona, explains the difference between bone density and bone quality, and why it matters if you or a loved one has been told you have osteopenia or osteoporosis. REMS Echolight is a radiation-free, FDA-cleared ultrasound exam that measures both bone density and bone quality (the Fragility Score) of the lumbar spine and both femoral necks in one visit. The scan takes about 80 seconds for the spine and 40 seconds for the femur, and the report is available immediately.
Have you or your loved one been diagnosed with osteoporosis or osteopenia? Then please ask about bone quality, not just bone density. A standard X-ray DEXA measures bone density, meaning how much mineralized bone you have. It doesn't tell us about how that bone is arranged, what we call microarchitecture or bone quality.
Density is compared to an average 30-year-old. So petite women often score low on the amount of bone simply because they are small. They don't need to make as much bone. Take this patient. She's 110 pounds, so she's small, and her T-score is minus 3.6 by WHO standard. That is called osteoporosis. But does she really have porous bone? When you look at her bone quality, which is called the Fragility Score, it is in the green, which is normal-quality bone. That's not porous bone.
When we hear a sound, we can make out not just how loud it is, but also what the quality is. Is it a guitar? Is it a flute? Is it a drum? Here you can make out, through ultrasound, normal quality, decreased quality with some gaps, and low quality with big gaps, which is porous bone.
If we only rely on density, which is the amount of bone, sadly this patient would have been told that she absolutely needs medication right now. But because she has bone quality information, she can make a shared decision with her own provider about whether she needs medication at all. These drugs do have some side effects, and benefits should always outweigh the risks.
At URPrecious, we offer this REMS Echolight bone density and bone quality ultrasound, checking your lumbar spine and both femoral necks. This test is often covered as an office visit through your insurance. Otherwise, the cost is $250, but through the end of December it's just $149. If you are able to add it to a screening breast ultrasound or whole body ultrasound, you save even more.
Please don't wait until you are 65 to start assessing your bone health. Start screening for bone health in the pre- or perimenopausal state, so you are not forced into drastic lifestyle changes or medications all at once at 65.
To learn more or book, call or text 602-878-7501 or visit urprecious.com.
REMS Echolight scan insurance billing available. The REMS Echolight CPT code differs from the DEXA CPT code, so it is not restricted even if you have already undergone a DEXA scan. Medicare and Medicaid patients pay no upfront fee)
For those with out of network insurances, we can issue a Superbill. Self pay price $250
REMS Echolight (Radiofrequency Echographic Multi Spectrometry) is an FDA-cleared ultrasound scan that assesses bone density and bone quality at the lumbar spine and hip, without ionizing radiation. URPrecious Imaging offers it in Chandler for patients across the Phoenix metro area, including Scottsdale, Mesa, Gilbert and Tempe. Your scan includes an in-person consultation with Dr. Krishnan, a board-certified radiologist.
Who can benefit from a REMS Echolight scan?
Adults 21 and older who want to check bone health, including postmenopausal women, people with a family history of osteoporosis, and people on medications that affect bone. Because there is no radiation, it can also suit people who need frequent follow-up scans. It can be done when spinal hardware, scoliosis or bone spurs make DEXA harder to interpret. Your physician can advise whether it fits your situation.
How is REMS different from DEXA?
DEXA uses low-dose X-rays. REMS uses ultrasound and reports bone density (BMD, T-score, Z-score) together with a Fragility Score, a measure of bone quality, in one scan. Published studies show REMS results correlate closely with DEXA. Each method works best when follow-up scans use the same technology, so please bring prior DEXA reports for comparison.
When should I have a scan?
Your doctor may recommend one at menopause, after a fracture, when starting or stopping bone-affecting medication, or to monitor treatment. REMS may detect changes sooner than DEXA, which can allow follow-up at shorter intervals. Ask your physician what schedule is right for you.
Cost and insurance
Billed through insurance: Your REMS Echolight scan is billed to your insurance as part of your office visit with Dr. Krishnan, who reviews your results with you in person. Your out-of-pocket cost depends on your plan’s benefits, so we recommend checking with your insurer before your visit. For out-of-network plans, we can provide a superbill.
Self-pay: $250. This includes the scan, an in-person radiologist consultation, and a formal radiologist report emailed to you.
Limited-time special: Self-pay patients pay $149 through December 23, 2026.
FAQ




Yes, we can submit your claim to in-network insurance as an office visit, because our radiologist reviews your results with you in person and answers all of your questions.
If you are not in network, the self-pay price is $250 for the lumbar spine and both femoral necks. Through December 2026, our promo price is $149.

The most advanced bone densitometer for bone health assessment for your daily clinical activities.
Through an ultrasound scan of axial anatomical sites such as the spine and femur, this innovative technology allows to measure bone mineral density without using
ionising radiation, by processing a true bone identity card. Besides ensuring a high level of accuracy, it does not require radiological protection, it is easy to use and its distinctive transportability facilitates the use thereof among patients hospitalised with fractures who cannot be transferred and the continuity of care at home.
Furthermore, the absence of radiation allows this method to be used on a
heterogeneous variety of patients, including paediatric patients, patients at risk of secondary osteoporosis, diabetic patients, patients who have undergone cancer treatments and pregnant women.
The first ultrasound system that allows access to prevention, early diagnosis of osteoporosis and monitoring through primary healthcare. EchoS is able to evaluate the state of bone health of people no longer with the use of X-rays, but with a simple ultrasound done directly in the doctor's office or even in your own home.
The lack of radiation and database including those who are 21 years and older, allows early in life screening for osteopenia/osteoporosis to help proactively take early precautionary measures to minimize future risk of fracture and overally live with optimal bone health.
The ultrasound scan lasts just 80 seconds for the spine and 40 for the femur, allowing for accurate prevention, diagnosis and monitoring of bone health without the limitations of patient positioning and manual image segmentation.
The exam produces an immediate medical report which, in addition to including all the most common parameters used in the diagnosis of osteoporosis, BMD (g/cm2), T-Score, Z-Score also includes the independent evaluation of the internal bone structure which provides an frailty index and body composition index.
We are able to provide mobile service for residential homes and facilities, upon request.
Useful to monitor treatment, as it may be possibly detect changes in as early as 6 months (unlike DEXA which may take 1-2 years).
1. Bone Mineral Density (BMD)
This is the actual measurement of bone density, typically measured in grams per square centimeter (g/cm2). BMD is used to determine the T-score and the Z-score.
2. T-Score
This is a numerical value that compares an individual's BMD to the mean BMD value of a large database of healthy 30-year-old women. A T-score with a standard deviation of -2.5 from the mean value indicates
osteoporosis.
3. Z-Score
Similar to the T-score, the Z-score compares an individual's BMD to the BMD of people of the same age and gender.
4. Fragility Score
This is a measure of bone quality, indicating how likely someone is to sustain a fragility fracture. It is derived through statistical calculations using data obtained during the Echolight scan and comparing it to a database
of people with and without fractures.
These data points collectively provide valuable information about bone health,
including the risk of osteoporosis and fragility fractures.
"Could Radiofrequency Echographic Multi-Spectrometry (REMS) Overcome the Limitations of BMD by DXA Related to Artifacts? A Series of 3 Cases: " Journal of Ultrasound in Medicine; 2021.
"Radiofrequency echographic multi-spectrometry for the in-vivo assessment of bone strength: state of the art-outcomes of an expert consensus meeting organized by the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO):' Aging Clinical and Experi-mental Research; 2019.
An advanced quantitative echosound methodology for femoral neck densitometry: Ultrasound in Medicine & Biology; 2016.