Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles

Magnetic resonance imaging (MRI) is suggested to be useful for counting follicles and confirming ovulation in microminipigs. However, its accuracy is unknown. We have compared the number of follicles counted by MRI to that of corpus hemorrhagicum confirmed directly by visual inspection. The follicle...

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Autores principales: TAKASU, Masaki, BABA, Ryoko, OWADA, Satsuki, NAKAMURA, Kotono, ALMUNIA, Julio, NISHII, Noriko, KITAGAWA, Hitoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Veterinary Science 2017
Materias:
Theriogenology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5797870/
https://www.ncbi.nlm.nih.gov/pubmed/29187696
http://dx.doi.org/10.1292/jvms.17-0417
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author TAKASU, Masaki
BABA, Ryoko
OWADA, Satsuki
NAKAMURA, Kotono
ALMUNIA, Julio
NISHII, Noriko
KITAGAWA, Hitoshi
author_facet TAKASU, Masaki
BABA, Ryoko
OWADA, Satsuki
NAKAMURA, Kotono
ALMUNIA, Julio
NISHII, Noriko
KITAGAWA, Hitoshi
author_sort TAKASU, Masaki
collection PubMed
description Magnetic resonance imaging (MRI) is suggested to be useful for counting follicles and confirming ovulation in microminipigs. However, its accuracy is unknown. We have compared the number of follicles counted by MRI to that of corpus hemorrhagicum confirmed directly by visual inspection. The follicles of 17 microminipigs were counted by using ovarian MRI on a 0.4 Tesla MRI System every 24 hr after estrus until follicle images disappeared. Then, we performed laparotomy to count their corpus hemorrhagicum. Significant correlation was observed between follicle counts obtained using MRI (5.18 ± 1.78 per head) and the numbers of corpus hemorrhagicum (5.47 ± 1.74 per head). In conclusion, follicle counts using 0.4-T MRI were reliable, and confirmed microminipig ovulation.
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spelling pubmed-57978702018-02-08 Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles TAKASU, Masaki BABA, Ryoko OWADA, Satsuki NAKAMURA, Kotono ALMUNIA, Julio NISHII, Noriko KITAGAWA, Hitoshi J Vet Med Sci Theriogenology Magnetic resonance imaging (MRI) is suggested to be useful for counting follicles and confirming ovulation in microminipigs. However, its accuracy is unknown. We have compared the number of follicles counted by MRI to that of corpus hemorrhagicum confirmed directly by visual inspection. The follicles of 17 microminipigs were counted by using ovarian MRI on a 0.4 Tesla MRI System every 24 hr after estrus until follicle images disappeared. Then, we performed laparotomy to count their corpus hemorrhagicum. Significant correlation was observed between follicle counts obtained using MRI (5.18 ± 1.78 per head) and the numbers of corpus hemorrhagicum (5.47 ± 1.74 per head). In conclusion, follicle counts using 0.4-T MRI were reliable, and confirmed microminipig ovulation. The Japanese Society of Veterinary Science 2017-11-28 2018-01 /pmc/articles/PMC5797870/ /pubmed/29187696 http://dx.doi.org/10.1292/jvms.17-0417 Text en ©2018 The Japanese Society of Veterinary Science This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Theriogenology
TAKASU, Masaki
BABA, Ryoko
OWADA, Satsuki
NAKAMURA, Kotono
ALMUNIA, Julio
NISHII, Noriko
KITAGAWA, Hitoshi
Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
title Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
title_full Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
title_fullStr Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
title_full_unstemmed Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
title_short Accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
title_sort accuracy of follicle count and ovulation confirmation using magnetic resonance imaging in microminipigs with normal estrus cycles
topic Theriogenology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5797870/
https://www.ncbi.nlm.nih.gov/pubmed/29187696
http://dx.doi.org/10.1292/jvms.17-0417
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