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  • 1 University of Trás-os-Montes e Alto Douro Department of Veterinary Science-CETAV 5001-801 Vila Real Portugal
  • 2 University Complutense of Madrid Department of Animal Medicine and Surgery, Veterinary Faculty Spain
  • 3 University of Léon Department of Animal Pathology: Animal Medicine, Veterinary Faculty Spain
  • 4 Technical University of Lisbon Department of Clinic-CIISA, Faculty of Veterinary Medicine Portugal
  • 5 Universidade de Trás-os-Montes e Alto Douro Departamento de Ciências Veterinárias 5001-801 Vila Real Portugal
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A modified PennHIP procedure (MPP), using specific mechanical holding devices, was used on 70 dogs and compared to the standard PennHIP method (SPM) used on 39 dogs, in terms of technical effectiveness and the mean number of essential individuals within the X-ray room (EIXRR). The data using the Chisquared test were consistent with the null hypothesis that the technical effectiveness was equal in the groups under investigation (P > 0.05). On the contrary, using the two-sample unpaired t -test the null hypothesis, that the mean EIXRR was equal, was rejected (P < 0.001). The estimated EIXRR was 3.4 ± 0.7 and 5.7 ± 1.2 (mean ± SD) for MPP and SPM, respectively. In conclusion, the MPP needs fewer EIXXR than the SPM and complies with the new recommendations in X-ray protection, which introduce the ALARA (as-low-as-reasonably-achievable) idea.

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