Animal B ultrasound images of intraductal papilloma of mammary gland:

Most of the lesions are too small to show, and they can only be shown when they are generally large (greater than 3-5mm).

② It usually occurs in the central lactation duct and the lactation sinus. Low, medium or strong echogenic nodules can be seen in the localized dilating catheter to protrude into the lumen, and the distal catheter is often dilated.

③ Sometimes the catheter dilates into a sac, and the nodules form a cystic solid mass.

④ Sometimes the proximal catheter may be dilated.

⑤CDFI indicates that there is usually no blood flow in the tumor, and if the blood flow signal is found, it may be malignant.

Veterinary B-ultrasound BXL-V20 application

1. Monitoring the uterus during the estrus cycle: The ultrasonography of the uterus during the estrus and other periods of the sexual cycle is significantly different. The boundary between endometrium and cervical muscle layer is obvious during estrus. Due to the thickening of uterine wall and the increase of water content in uterus, there are more low-echo dark areas in the ultrasonography with uneven texture. The images of the uterine wall were brighter in the late and interestrus periods, and endometrial folds were visible, but there was no fluid in the lumen.

2. Monitoring postpartum uterine degeneration: The uterine horn of first-born cattle is usually complete at 40 days postpartum, and it takes about 50 days after childbirth. When the rejuvenation is near completion, the boundaries between myometrium and other tissues are obvious, and the endometrium is gradually thickened and the image becomes white. It takes about 15 weeks for the dog to complete uterine involution.

3, monitoring uterine diseases: B ultrasound is more sensitive to endometritis, pyometritis and so on. During inflammation, the uterine cavity was blurred, dilated, accompanied by partial echo and snowflake. With pus, the uterine body is enlarged, the uterine wall is clear, and there is a liquid dark area in the uterine cavity.

4, Observation of embryonic development: Through the observation of changes in the fetal structure and fetal structure to judge embryonic development.

5, monitoring fetal death: ultrasonic detection of fetal heartbeat, can predict the death of the fetus. Before the embryo died, the heartbeat decreased significantly. The disappearance of fetal movement, the sac filled with liquid dark areas, no germ can be seen, the uterine echo disorder, the inability to distinguish the sac, placenta and fetal structure, etc., are indicative of embryonic death.

6, identification of fetal sex: Ultrasonic detection of fetal reproductive nodules and the position of the surrounding structure can accurately identify fetal sex. Between 50 and 105 days after breeding, the accuracy of identifying fetal sex was 96%.

7. Estimating the number of pregnancies and predicting gestational age: Estimating the number of pregnancies is mainly used for animals with multiple pregnancies. B-ultrasound can also judge the size of the fetus with a high degree of accuracy and can predict the date of calving based on the size of the fetus. Gestational age can be roughly estimated using the diameter of the fetal sac. The diameter of villi sac and uterus are also used to determine gestational age.

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