Get Greulich And Pyle Bone Age Atlas Download

The Greulich and Pyle method makes use of a standard bone age atlas that the reporter can compare their image to and make an estimation of bone age. This is different to the Tanner-Whitehouse method which assesses and scores each bone before calculating an estimated age based on the assessed bones.

The standard deviation of bone age at a given age is approx. 1 year. This implies that in a random group of 7 boys of the same age, there is on average 3 years difference between the most and the least mature boy. I.e. the most advanced boy hits puberty 3 years before the least advanced.

Bone age is calculated by comparing the left wrist radiographs of the subject with the nearest matching reference radiographs provided in the atlas which are standard for different ages provided in the atlas. This method is simpler and faster than other radiograph based methods.

The atlas comprises of reference radiographic images of left wrist and hand from birth till 19 years of age for males and 18 years of age for females. It is based on the fact that ossification centers in the hand and wrist bones appear in a sequential and fixed order.

The atlas comprises of reference radiographic images of left wrist and hand from birth till 19 years of age for males and 18 years of age for females. It is based on the fact that ossification centers in the hand and wrist bones appear in a sequential and fixed order.

Advanced bone age was defined as patients who had a difference >2 SD between bone and chronological age. Children were divided into a normal or advanced bone age group. We compared the two groups and analyzed the prevalence of advanced bone age ing to factors associated with childhood obesity.

The pubic symphysis is one of the most reliable areas of the skeleton for adult age estimation. Other methods include changes in the morphology of the auricular surface and the sternal rib end.

Radiography of the hand & wrist is the commonest modality used to calculate bone age.