Version 2 of BoneXpert from January 2013 introduced an increased robustness towards image post-processing – more specifically: edge enhancement and contrast amplification – so that bone age and BHI (Bone Health Index) are largely insensitive to these operations. This “Topic of Interest” tells the story behind this improvement.

A discussion of the radiation dose of a bone age hand X-ray.

The hazard of ionizing radiation is of great concern in pediatric radiology, but there is a need for a better understanding of the huge differences in the effective doses of various examinations. The effective dose of a pediatric hand X-ray is remarkably small, 0.0001 mSv, equivalent to 1 minute of airline flight. Sometimes this is said to be equivalent to eating a banana, but as explained below, this comparison is flawed.

Radiology brings an interesting article entitled “Computer-aided Diagnosis: How to Move from the Laboratory to the Clinic”, which presents a remarkably deep analysis of the current state of CAD (abstract). CAD is considered to have a great future, but a number of hard challenges need to be met. BoneXpert is featured in the article, and this “Topic of interest” post follows up on this honorable mentioning by reviewing the paper and placing BoneXpert in a wider perspective.