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Updated: Jul 14, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Mechanical devices to help in PennHIP examination
M M D Ginja1, Maria P Llorens-Pena, J M Gonzalo-Orden
1Department of Veterinary Science-CETAV, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal. mginja@utad.pt
Abstract:
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 Chi-squared 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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