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    עמוד בית
    Fri, 04.04.25

    Original Articles

    IMAJ | volume 19

    Journal 9, September 2017
    pages: 533-538

    Bone Age Assessments by Quantitative Ultrasound (SonicBone) and Hand X-ray Based Methods are Comparable

    Full article (PDF)

    Summary

    Background:

    Bone maturation is currently assessed by subjective and automated radiography. 

    Objectives:

    To evaluate the concordance and reproducibility of a quantitative ultrasound (QUS) based device versus X-ray based methods.

    Methods:

    The study population comprised 150 children, 76 males, 4–17 years of age. X-ray scans were evaluated according to wrist, carpal and phalanx areas for bone age. QUS was performed by the the BAUS™ device (SonicBone, Rishon Lezion, Israel), using speed-of-sound (SOS) and distance attenuation factor (ATN) in similar areas. Data from 100 subjects were used to establish the device conversion equation, and 50 measurements were assigned to assess inter-modality agreement. 

    Results:

    BAUS showed high repeatability performance, 0.73% relative standard deviation for SOS and 3.5% for ATN. R2 for the conversion equation, including gender, SOS, and ATN, was 0.80 for all methods (P < 0.001). There was no significant bias in bone age assessments.

    Conclusions:

    Bone age assessment by SonicBone is comparable to the assessment by X-ray based methods. 
     

    Full article (PDF)
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