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The influence of the size, age and sex on the computed tomographic measured size of the pituitary gland in normal horses

Casper Crijns (UGent) , Henri van Bree (UGent) , Bart Broeckx (UGent) , Stijn Schauvliege (UGent) , Gunther van Loon (UGent) , Ann Martens (UGent) , Katrien Vanderperren (UGent) , Walter Dingemanse (UGent) and Ingrid Gielen (UGent)
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Abstract
The objective of this study was to examine the influence of the size, age and sex of the horse on the size of the pituitary gland and determine the possibility of using the pituitary gland height-to-brain area ratio (P:B ratio) to allow comparison of different sized and aged horses. Thirty-two horses without pituitary pars inter-media dysfunction that underwent a contrast-enhanced computed tomographic (CT) examination were included in a cross-sectional study. On the CT images, the pituitary gland height was measured and the P:B ratio was calculated. These measurements were correlated to the size, age and sex of the horses. The pituitary gland height was significantly associated with the size (P < 0.001) and the age (P < 0.001), but not with the sex (P = 0.40), of the horses. No significant association was found between the P:B ratio and the size (P = 0.25), the age (P = 0.06) or the sex (P = 0.25) of the horses. In conclusion, the pituitary gland size varies between different sized and aged horses. The use of the P:B ratio is a valuable metric for making comparisons between the pituitary glands of these horses.
Keywords
PARS-INTERMEDIA DYSFUNCTION, AGREEMENT, DIAGNOSIS, ACCURACY, HORMONE, DOGS

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Chicago
Crijns, Casper, Henri van Bree, Bart Broeckx, Stijn Schauvliege, Gunther van Loon, Ann Martens, Katrien Vanderperren, Walter Dingemanse, and Ingrid Gielen. 2017. “The Influence of the Size, Age and Sex on the Computed Tomographic Measured Size of the Pituitary Gland in Normal Horses.” Anatomia Histologia Embryologia 46 (3): 267–273.
APA
Crijns, C., van Bree, H., Broeckx, B., Schauvliege, S., van Loon, G., Martens, A., Vanderperren, K., et al. (2017). The influence of the size, age and sex on the computed tomographic measured size of the pituitary gland in normal horses. ANATOMIA HISTOLOGIA EMBRYOLOGIA, 46(3), 267–273.
Vancouver
1.
Crijns C, van Bree H, Broeckx B, Schauvliege S, van Loon G, Martens A, et al. The influence of the size, age and sex on the computed tomographic measured size of the pituitary gland in normal horses. ANATOMIA HISTOLOGIA EMBRYOLOGIA. 2017;46(3):267–73.
MLA
Crijns, Casper, Henri van Bree, Bart Broeckx, et al. “The Influence of the Size, Age and Sex on the Computed Tomographic Measured Size of the Pituitary Gland in Normal Horses.” ANATOMIA HISTOLOGIA EMBRYOLOGIA 46.3 (2017): 267–273. Print.
@article{8523789,
  abstract     = {The objective of this study was to examine the influence of the size, age and sex of the horse on the size of the pituitary gland and determine the possibility of using the pituitary gland height-to-brain area ratio (P:B ratio) to allow comparison of different sized and aged horses. Thirty-two horses without pituitary pars inter-media dysfunction that underwent a contrast-enhanced computed tomographic (CT) examination were included in a cross-sectional study. On the CT images, the pituitary gland height was measured and the P:B ratio was calculated. These measurements were correlated to the size, age and sex of the horses. The pituitary gland height was significantly associated with the size (P {\textlangle} 0.001) and the age (P {\textlangle} 0.001), but not with the sex (P = 0.40), of the horses. No significant association was found between the P:B ratio and the size (P = 0.25), the age (P = 0.06) or the sex (P = 0.25) of the horses. In conclusion, the pituitary gland size varies between different sized and aged horses. The use of the P:B ratio is a valuable metric for making comparisons between the pituitary glands of these horses.},
  author       = {Crijns, Casper and van Bree, Henri and Broeckx, Bart and Schauvliege, Stijn and van Loon, Gunther and Martens, Ann and Vanderperren, Katrien and Dingemanse, Walter and Gielen, Ingrid},
  issn         = {0340-2096},
  journal      = {ANATOMIA HISTOLOGIA EMBRYOLOGIA},
  keyword      = {PARS-INTERMEDIA DYSFUNCTION,AGREEMENT,DIAGNOSIS,ACCURACY,HORMONE,DOGS},
  language     = {eng},
  number       = {3},
  pages        = {267--273},
  title        = {The influence of the size, age and sex on the computed tomographic measured size of the pituitary gland in normal horses},
  url          = {http://dx.doi.org/10.1111/ahe.12266/epdf},
  volume       = {46},
  year         = {2017},
}

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