1, transvaginal ultrasonography and abdominal sonography of what are the differences?
transvaginal ultra vaginal probe directly placed in the vagina is a method of ultrasonic inspection.Have the characteristics of high frequency, high resolution, and patients don't need a full bladder, abdominal ultrasound is clear and accurate.
(pictured abdominal B to exceed)
2, transvaginal ultrasound is abdominal ultrasound what are the advantages?
1) probe frequency higher than abdominal probe frequency, therefore the resolution is higher than abdominal probe.Probe in the vagina fornix, after close to the cervix and pelvic cavity viscera so show more clearly.
2) patients without a full bladder, does not need to wait for, to buy time for patients, a full bladder relief from pain.
3) obese patients, make vaginal ultrasound examination, due to the probe to the cervix, do not need after abdominal multiple organizations and thick fat, beam absorption, less than abdominal ultrasound images clear.
4) for before and after the uterus shows satisfactory.
5) to the uterus, ovaries, fallopian tubes and pelvic small lesions showed significantly better than that of abdominal ultrasound.For example: intrauterine submucosal uterine myoma and endometrial polyp, cervical myoma and cervical cancer, neck submucosal fibroids and the cervical polyp, accumulation of endometrial carcinoma is tiny lesions in muscular layer, ovarian, fallopian tube lesions can be very good display, such as especially blood flow signal showed more sensitive, more easily lead to blood flow spectrum.
6) on the tiny bag piece inside the pelvic cavity and a small amount of effusion display effect is satisfied, the early diagnosis of unruptured ectopic pregnancy was better than abdominal ultrasound.For pelvic cavity accumulates fluid volume measurement is accurate.
7) with interventional ultrasound in obstetrics and gynecology clinic application of transvaginal ultrasound guided puncture, not only can be used to take the eggs, can also be used for ovarian cyst and pelvic abscess puncture.
(pictured abdominal B to exceed)
3, transvaginal ultrasound is the shortcomings of abdominal ultrasound:
1) due to the high frequency, detecting depth will reduce, the far field organization and lesions showed a poor effect.For larger myoma or multiple uterine fibroids, pelvic cavity is bigger the mass or a long position on the high side of the mass, transvaginal ultrasound can't show picture, so these patients need abdominal and vaginal scan, can help diagnose more accurately.
2) for level a uterus shows not satisfied.
3) surgery due to adhesion of uterus, cervix is longer, because corpus position is higher, it is hard to get good display.
4) vaginal probe should be put into the vagina, so the disabled for a virgin;Menses, miscarriage, postoperative acute vaginitis, pelvic inflammatory disease with caution;Vaginal malformations (vagina atresia, thicker across or inclined isolation) shall not apply to the patients.
4, vaginal ultrasound examination before to prepare for what?
patients should empty your bladder before examination, pelvic cavity viscera in a physiological position, easy to check.After full bladder, can be pelvic organs to the far field, affect the observation.When pelvic bowel bilges gas obviously, can affect the observation, can be used to open check dew help defecation.
Yin type B ultrasonic is a kind of intracavitary ultrasonic, ultrasonic probe is directly placed in the vagina for a method of ultrasonic inspection.
1, the frequency is higher than abdominal routine use 3.5 MHZ probes, resolution than abdominal probe.Probe after the vagina close to the cervix and the vault, unlike abdominal B to exceed, beam passes through the abdominal wall skin, muscle, bladder, intestines, so basin shows that more clearly.Especially after a uterus, endometrial cancer, hysteromyoma, pelvic tumors, ovarian follicles monitoring, after the early ectopic pregnancy (not before), early pregnancy, placenta previa, such as observation, image display than abdominal sonography of clear.Detection of early pregnancy, earlier than abdominal ultrasound found 5-7.
2, don't need a full bladder, buy time for patients, and patients from the filling of the bladder discomfort.
3, obese patients, make vaginal ultrasound examination, due to the probe to the cervix, absorb less beam, no obvious attenuation, image than abdominal ultrasound clear.
vaginal ultrasound and the principle of abdominal ultrasound examination is similar, only value of vaginal ultrasound in the diagnosis of ectopic pregnancy than abdominal B ultra, other no special difference.Vaginal B ultrasonic and abdominal B to exceed examination principle is "ultrasonic", no radiation, only a short period of time according to the human body, there is no effect on fetal health, don't worry about it.
a lot of women in the disease of department of gynaecology, inspection to normal hospital, can through the use of abdominal ultrasound method to judge the condition, but many women if one aspect of the disease, also can through the use of judging Yin type B ultrasonic method, under the condition of normal use ultrasound way is different, whether it's actually abdominal ultrasound or Yin is a B to exceed, can effectively judge the female's physical condition, both the way basically understand the condition of the effect of ultrasound is similar.
1 if a lot of women in early pregnancy can be adjusted by using the method of abdominal ultrasound, generally before doing abdominal B to exceed, should drink more water to a full bladder, so that in the process of doing B to exceed can more clearly, can through the use of abdominal ultrasound way to determine fetal growth situation, also can effectively judge whether women had disease of department of gynaecology.
2 normal circumstances, after the pregnancy is not able to use the Yin type B ultrasonic methods to adjust, because this method may lead to miscarriage, or is in the one aspect of the disease of department of gynaecology, and damage to the fetus is very big, under the condition of normal women without pregnant before doing department of gynaecology, Yin type B ultrasonic method to check.
3 by B ultrasonic examination in the process of the blood test is not need a full bladder, can be through the use of Yin to normal hospital type B ultrasonic method to determine whether women appeared in cervical lesions, or the uterus, ovarian lesions, for women's health is also good, the average normal hospital checking can choose this two ways.