hrp0092fc2.6 | Bone, Growth Plate and Mineral Metabolism Session 1 | ESPE2019

Validation of a New Version of BoneXpert Bone Age in Children with Congenital Adrenal Hyperplasia (CAH), Precocious Puberty (PP), Growth Hormone Deficiency (GHD), Turner Syndrome (TS), and other Short Stature Diagnoses

Thodberg Hans Henrik , Martin David D

Background: The BoneXpert method for automated determination of bone age from hand X-rays is based on machine learning, so it lends itself naturally to be improved by adding more training data and using better learning algorithms. Currently, version 2 is running in 145 hospitals across Europe, and a new version 3 is rolled out in 2019.Objective and Hypotheses: The aim was to validate version 3 against manual ratings in r...

hrp0092rfc2.3 | Bone, Growth Plate and Mineral Metabolism Session 1 | ESPE2019

Growth Hormone Effects on Metacarpal Bone Geometry and Bone Age in Growth Hormone-Deficient Children

Martin David D , Ranke Michael B , Henrik Thodberg Hans , Binder Gerhard

Purpose: To track the effects of growth hormone on bone geometry and maturation in children with isolated growth hormone deficiency (GHD).Methods: 299 left hand X-rays from 77 short prepubertal children (54 boys and 23 girls) with isolated GHD were analysed for changes in metacarpal thickness, width, length, medullary diameter, the Bone Health Index (BHI) and bone age (BA) from one year preceding until four years after s...