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European Radiology Experimental
Fig. 1 | European Radiology Experimental

Fig. 1

From: Artificial intelligence in bone age assessment: accuracy and efficiency of a novel fully automated algorithm compared to the Greulich-Pyle method

Fig. 1

Radiograph of the left hand and wrist before (a) and after (b) automated bone age (BA) assessment by the software BoneXpert version 2.1. Bone borders of the analysed bones are automatically marked by the software. The software first calculates the intrinsic overall BA and the BA of each bone. Afterwards, these intrinsic values are transformed into Greulich-Pyle and Tanner-Whitehouse values (version TW3). The values are displayed in the annotated DICOM (Digital Imaging and Communications in Medicine) image as transformed Greulich-Pyle bone age values (BA [GP]) and Tanner-Whitehouse values (BA [TW3]) with respect to sex (F, female). Furthermore, the bone health index (BHI) is also shown with corresponding values. In addition, the standard deviation score (SDS, also known as z-score) is displayed concerning the corresponding population (CauEu, Caucasian European). BA (GP) Greulich-Pyle bone age, BA (SDS) Bone age standard-deviation score, BA (TW3) Tanner-Whitehouse bone age, BHI Bone health index, BHI (SDS) Bone health index standard-deviation score, CauEu Caucasian European, F Female

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