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Article Dans Une Revue European Radiology Année : 2018

Assessment of micro-dose biplanar radiography in lower limb measurements in children

Résumé

OBJECTIVE: To evaluate in children microdose protocol compared with low dose for lower limb alignment (LLA) measurements on biplanar radiography. METHODS: Children 6 years or older were included. Height, weight and hip width were measured prior to imaging. Hip width allowed classifying children into morphotype M1 (width <25 cm), M2 (25-35 cm) or M3 (>35 cm) corresponding to predefined acquisition parameters (kV, mA, tube speed). Micro- and low-dose protocols were used alternately, with simultaneous acquisition of frontal and lateral radiographs. LLA measurements were performed by two independent observers (n = 526). In 15 children per morphotype, a third observer performed measurements twice (n = 180). Intraclass correlation coefficients and the dose (delivered, absorbed) were calculated. RESULTS: 100 girls and 160 boys (mean age = 11.7 years) were investigated: 74 M1 (mean BMI, 15.7kg/m222 CONCLUSIONS: Microdose could be used for LLA measurements in children and permits a significant dose reduction. CONCLUSIONS: • Lower limb lengths of children can be evaluated with microdose biplanar radiography. • Valgus/varus deviations also can be evaluated with microdose biplanar radiography. • Microdose biplanar radiography significantly reduces delivered and absorbed dose in children.
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Dates et versions

hal-03358041 , version 1 (29-09-2021)

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Heloise Bras de Fer, Elisa Amzallag-Bellenger, Aurelie Cebulski-Delebarre, Eric Nectoux, Geoffrey Desmulliez, et al.. Assessment of micro-dose biplanar radiography in lower limb measurements in children. European Radiology, 2018, European radiology, 28 (4), pp.1778-1787. ⟨10.1007/s00330-017-5144-x⟩. ⟨hal-03358041⟩

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