Serial ultrasonography was performed to measure the normal appearance of uterine during estrous cycle and to determine whether the unterine appearance was related to the sex hormone, progesterone and estrogen. The uterine appearances, shape, diameter and echogenicity were daily monitored with ultras...
Serial ultrasonography was performed to measure the normal appearance of uterine during estrous cycle and to determine whether the unterine appearance was related to the sex hormone, progesterone and estrogen. The uterine appearances, shape, diameter and echogenicity were daily monitored with ultrasonography in 9 Miniature Schnauzer dogs undergoing II estrous cycles. During proestrus and estrous, the uterus became hypoechoic but developed hyperechoic luminal echo. In the longitudinal view, the shape of the uterus occasionally changed from rectangular to coiled or serpentine, compared to other stages of the cycle. The diameter of the uterus during proestrus and estrous was larger (range: 0.60${\sim}$0.86 mm) than other stages (range: 0.48${\sim}$0.62 mm) of the cycle. The rising estrogen concentrations (range: 14.51${\sim}$16.86 pg/ml) in plasma during proestrus correlated with changes in the uterus (p<0.05). Progesterone concentrations were 0.08${\sim}$0.15 ng/ml at the onset of proestrus, but rose 1.06${\sim}$1.26 ng/ml at the end of proestrus. There was no relation to progesterone concentration from onset of estrus (p>0.05). There was dramatical changes in normal uterus and sex hormone during estrous cycle. Especially, the appearance, shape and diameter of uterus were related to plasma estrogen concentration during proestrus, correlated with other stages of the cycle.
Serial ultrasonography was performed to measure the normal appearance of uterine during estrous cycle and to determine whether the unterine appearance was related to the sex hormone, progesterone and estrogen. The uterine appearances, shape, diameter and echogenicity were daily monitored with ultrasonography in 9 Miniature Schnauzer dogs undergoing II estrous cycles. During proestrus and estrous, the uterus became hypoechoic but developed hyperechoic luminal echo. In the longitudinal view, the shape of the uterus occasionally changed from rectangular to coiled or serpentine, compared to other stages of the cycle. The diameter of the uterus during proestrus and estrous was larger (range: 0.60${\sim}$0.86 mm) than other stages (range: 0.48${\sim}$0.62 mm) of the cycle. The rising estrogen concentrations (range: 14.51${\sim}$16.86 pg/ml) in plasma during proestrus correlated with changes in the uterus (p<0.05). Progesterone concentrations were 0.08${\sim}$0.15 ng/ml at the onset of proestrus, but rose 1.06${\sim}$1.26 ng/ml at the end of proestrus. There was no relation to progesterone concentration from onset of estrus (p>0.05). There was dramatical changes in normal uterus and sex hormone during estrous cycle. Especially, the appearance, shape and diameter of uterus were related to plasma estrogen concentration during proestrus, correlated with other stages of the cycle.
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제안 방법
Each dog was examined twice daily for swelling of vulva and the presence of a vaginal discharge, which considered to signify the onset of proestrus. Each stage of estrous cycle was described according to following methods, as described by Holst (1986).
Detection of the uterus is easier at these times compared to anestrus because it is turgid and 1 to 3 mm larger in diameter (Bonagura and Kirk, 1995). It was enough to identify the uterus appearance for estrous cycle periods in ultrasonography with 10 MHz transducer in this study. It was able to identify an echogenic line within the uterine lumen.
The objective of the present study was to measure the normal ultrasonographic appearance of ferine during estrous cycle and to determine whether the uterine appearance was related to the sex hormone, progesterone and estrogens, in Miniature Schnauzer dogs which is a common pet dog in Korea.
All diameters were described in millimeters by electronic caliper built in the ultrasonography machine. Uterine shape, echogenicity and the uterine diameter were monitored. The uterine diameter was defined as the serosa to serosa measurements in uterine horn.
대상 데이터
The examination was performed on 9 Miniature Schnauzer dogs. They were aged 2~6 years and weighed between 5.
이론/모형
The statistical analysis was performed using 나k general linear-model procedure (SAS version 9.1, SAS Institute Inc., USA). SAS was used to determine 훌he crude association between uterine appearances (shape, echogenicity and diameter) and sex homiones (P4 and E2).
후속연구
Especially, the appearance, shape and diameter of uterus were related to plasma E2 concentration during mid-proestrus and early estrus, correlated with other stages of the cycle in 9 Miniature Schnauzer dogs. However, additional study studies should be performed to clarify whether other sex hormones (FSH, LH) are related to uterine in the future.
참고문헌 (13)
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