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Pediatric Radiology

, 38:1285 | Cite as

The use of bone age for bone mineral density interpretation in a cohort of pediatric brain tumor patients

  • E. Brannon Morris
  • John Shelso
  • Matthew P. Smeltzer
  • Nicole A. Thomas
  • E. Jane Karimova
  • Chin-Shang Li
  • Thomas Merchant
  • Amar Gajjar
  • Sue C. Kaste
Original Article

Abstract

Background

Skeletal bone accretion occurs throughout childhood. The integrity of this process can influence future adult bone health and the risk of osteoporosis. Although surveillance of children who are at risk of poor bone accretion is important, the most appropriate method to monitor childhood bone health has not been established. Previous investigators have proposed using bone age (BA) rather than chronological age (CA) when interpreting bone mineral density (BMD) values in children.

Objective

To investigate the value of BA assessment for BMD measurement in a cohort of children at risk of poor accretion.

Materials and methods

A cohort of 163 children with brain tumors who completed both a BMD assessment (quantitative computed tomography, QCT) and who had a BA within a 6-month interval were identified. The difference in BMD Z-scores determined by CA and BA was determined. The impact of salient clinical features was assessed.

Results

No significant difference between CA and BA Z-scores was detected in the overall cohort (P = 0.056). However, the scores in 18 children (all boys between the ages of 11 years and 15 years) were statistically determined to be outliers from the values in the rest of the cohort.

Conclusion

Interpretation of BMD with BA measurement might be appropriate and affect treatment decisions in peripubertal males.

Keywords

Bone age Bone mineral density Children Quantitative computed tomography (QCT) 

Notes

Acknowledgement

The authors would like to thank Dr. Chuck Sklar for review of the manuscript and insightful critique.

Financial Support

This work was supported by Cancer Center Support (CORE) Grant P30 CA 21765 from the National Institutes of Health and by the American Lebanese Syrian Associated Charities (ALSAC).

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • E. Brannon Morris
    • 1
    • 5
  • John Shelso
    • 4
  • Matthew P. Smeltzer
    • 2
  • Nicole A. Thomas
    • 3
  • E. Jane Karimova
    • 3
  • Chin-Shang Li
    • 2
  • Thomas Merchant
    • 3
  • Amar Gajjar
    • 1
  • Sue C. Kaste
    • 1
    • 3
  1. 1.Department of OncologySt. Jude Children’s Research HospitalMemphisUSA
  2. 2.Department of BiostatisticsSt. Jude Children’s Research HospitalMemphisUSA
  3. 3.Department of Radiological SciencesSt. Jude Children’s Research HospitalMemphisUSA
  4. 4.Department of EndocrinologySt. Jude Children’s Research HospitalMemphisUSA
  5. 5.Division of Cancer SurvivorshipSt. Jude Children’s Research HospitalMemphisUSA

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