By Aenor J. Sawyer MD, Laura K. Bachrach MD (auth.), Aenor J. Sawyer MD, Laura K. Bachrach MD, Ellen B. Fung PhD, RD (eds.)
Bone Densitometry in turning out to be sufferers is the 1st source to be had for specialist opinion at the use of twin power x-ray absorptiometry (DXA) for comparing bone density in little ones and teens. Written through the world over well-known pediatric bone researchers and clinicians, this quantity is exclusive in its particular cognizance to the myriad demanding situations of measuring and comparing bone density within the pediatric sufferer. there's enough technical aspect offered during this quantity to permit the institution of a pediatric DXA heart or the correct usage of DXA test info in present medical practice.
the quantity opens with a quick advent to common strategies with regards to bone healthiness in young children and an outline of all at present to be had densitometry innovations utilized in comparing young ones. next chapters specialise in symptoms for DXA reports in little ones and the optimum tools for buying, studying, reading, and reporting those scans. present and destiny learn functions of DXA and different modalities for learning pediatric bone overall healthiness also are mentioned. an intensive appendix presents necessary pediatric reference info, pattern types to be used in buying and reporting DXA facts, listings of valuable and proper pediatric bone web pages, and a accomplished bibliography. This quantity, that is the 1st pediatric DXA reference released, optimizes the actual and dependable use of DXA in youngsters as a device within the medical administration of bone fragility, and thereby paves the best way for the longer term improvement of applicable intervention and remedy courses for this population.
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Additional info for Bone Densitometry in Growing Patients: Guidelines for Clinical Practice
Diagnostic agreement between axial and peripheral skeletal sites may also differ depending on the child’s phase of skeletal development. A large change in DXA spinal BMD with no change in radius trabecular BMD may be caused by the increase in bone size due to the pubertal growth spurt rather than being due to the change in volumetric bone mineral density. The relationship between the peripheral and axial bone densitometry techniques and fractures has not been studied in children. Several studies have been performed that investigate the ability of peripheral measurement to predict osteoporotic fracture in adults (128,136,137) 7 .
Bath: National Osteoporosis Society, 2004 (position statement). 27. Carter D, Bouxsein M, Marcus R. New approaches for interpreting projected bone densitometry data. J Bone Miner Res 1992;7:137–145. 28. Crabtree NJ, Kibirige MS, Fordham JN, et al. The relationship between lean body mass and bone mineral content in paediatric health and disease. Bone 2004;35:965–972. 29. Hogler W, Briody J, Woodhead HJ, Chan A, Cowell CT. Importance of lean mass in the interpretation of total body densitometry in children and adolescents.
Cortical measurements only 1. Relatively low precision 2. Scanners are not designed for children 3. Only applicable to peripheral sites 4. Sensitive to scan environment 1. Noisy 2. Long scan time 3. Claustrophobia in some individuals 4. Parents cannot be in room with children 1. Long scan time 2. Only applicable to peripheral sites 1. Relatively high-ionizing radiation dose 2. Relatively high cost 3. Access to equipment can be problematic 4. Operation requires skilled staff 5. Specialist acquisition and analysis software limited 6.