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Special Aspects of Musculoskeletal Imaging in Children

  • Diego Jaramillo
  • Paul K. Kleinman

Abstract

In children, the skeleton undergoes multiple changes with age. These age-related transformations determine the distribution of disease, the patterns of injury, and their imaging characteristics. During development, cartilage is converted to bone and hematopoietic marrow to fatty marrow. Most epiphyses and apophyses are cartilaginous at birth and become increasingly ossified [1]. Epiphyseal cartilage has intermediate signal intensity on Tl-weighted images and low signal intensity on water-sensitive images. Epiphyseal cartilage is normally hypointense along the body’s weight-bearing regions [2]. Within the epiphyseal cartilage there is no capillary network; instead, there are multiple vascular canals which contain the veins and arteries that bring nutrients to the chondrocytes [3]. These can be visible as parallel striations on neonatal sonograms, and Doppler interrogation demonstrates flow within them [4]. Following contrast administration, magnetic resonance imaging (MRI) will show the vascular canals, which become arranged in a radial pattern as the ossification centers develop [5].

Keywords

Femoral Head Septic Arthritis Magn Reson Image Slip Capital Femoral Epiphysis Osteochondritis Dissecans 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Italia 2009

Authors and Affiliations

  • Diego Jaramillo
    • 1
  • Paul K. Kleinman
    • 2
  1. 1.Department of RadiologyThe Children’s Hospital of PhiladelphiaPhiladelphiaUSA
  2. 2.Department of RadiologyChildren’s Hospital BostonBostonUSA

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