Alara MetriScan

Alara MetriScan Bone Mineral Density

MetriScan lets the primary care physician screen patient's bone mineral density (BMD) during a routine office exam. This type of test typically requires a visit to the hospital imaging center for a Central DEXA examination.

Physicians now have a front line diagnostic tool that will help them identify patients who may have low BMD and be at risk for osteoporotic fractures. Using a one minute procedure that scans the patient's, physicians can assess osteoporosis risk. This is critically important today, as osteoporosis was recently determined to be significantly under diagnosed.

MetriScan Specifications

MetriScan uses radiographic absorptiometry (RA) to estimate relative phalangeal bone density of the three middle fingers. With RA a high resolution radiographic image of a patient's phalanges is taken. A computerized analysis is made comparing the intensity of the image with a reference wedge embedded under the hand plate.

Validation

This method was validated in one of the largest epidemiological studies in the bone density field. Phalangeal bone density testing was performed on 3481 women, who we than followed for sixteen years. The study concluded that phalangeal bone densitometry is a significant predictor of future hip fractures.

Features

• 0.3 second scan time
• Radiation dose is less than 5% of a dental x-ray
• Precision error = 1.1%
• Automatic calibration check
• Small footprint: 16" x 16" x 16"

Specifications

• Weight - 42 lbs
• Dimension - 16" x 16" x 16"
• Precision Error - 1.1% CV (in vivo)
• Patient x-ray dose - 0.001 mrem (effective dose equivalent)
• Mains voltage - 100 - 240 vac
• Mains frequency - 50 - 560 Hz
• Printer - HP, as specified by Alara

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