Can you get pregnant when menstruation is coming by color Doppler ultrasound?
Although color Doppler ultrasound is aimed at different people in life, it is worth knowing the time that everyone pays attention to when checking. So how long will it take for color Doppler ultrasound to produce results?
Like other B-ultrasound, color ultrasound can get immediate results. The best time for four-dimensional color Doppler ultrasound is about 20-28 weeks of pregnancy. This time, four-dimensional color Doppler ultrasound can be used to check whether the limbs and organs of the fetus are fully developed. In the third trimester, you can also see the baby's appearance in advance! The best time of four-dimensional color Doppler ultrasound varies from person to person, and the results obtained by four-dimensional color Doppler ultrasound will be different.
Generally speaking, pregnancy can be divided into three stages: the first trimester (1 -3 months), the second trimester (4-6 months) and the third trimester (7-9 months) with different four-dimensional color effects.
The best time to do four-dimensional color Doppler ultrasound examination is 5-7 weeks (20-28 weeks) of pregnancy, because the fetal body and major organs have been fully developed during this period, and amniotic fluid is more suitable for fetal malformation screening. However, due to the individual differences of pregnant women, please contact the doctor according to the doctor's consultation time. After about 4 minutes of color Doppler ultrasound, the results can be obtained in about 10 minutes. If the doctor finds problems in the 4D color Doppler ultrasound examination, he will also inform the parents on the spot.
Many people still don't understand the concept of color Doppler ultrasound, but if they don't understand this kind of examination, they will be at a loss when they are treated in the hospital. What is color Doppler ultrasound?
Usually consists of probes: phased array, linear array, convex array, mechanical fan scanning, three-dimensional probe, endoscope probe and so on. Ultrasonic transmitting and receiving circuit, signal processing and image display. Equipment that uses ultrasonic Doppler technology and ultrasonic echo principle to simultaneously collect blood flow, tissue movement information and organize human organs and tissues.
It is used for ultrasonic imaging, measurement and blood flow information collection, and is used for clinical ultrasonic diagnosis and examination. The probe can pass through esophagus, blood vessels and internal tissues of human body during surgery, and/or can be used in the fields of ultrasonic navigation.
Four-dimensional color Doppler ultrasound is a kind of color Doppler ultrasound. This kind of examination is mainly aimed at pregnant women, but when doing this kind of examination, everyone needs to know some preparations.
1, you can do four-dimensional color Doppler ultrasound in any pregnancy, but it should be emphasized that it is a controversial issue to do four-dimensional color Doppler ultrasound in the first trimester (before 12 weeks of pregnancy). For safety reasons, it is suggested that the fetus be examined by four-dimensional color Doppler ultrasound after 20 weeks.
2. After 20 weeks of pregnancy, fetal limbs and major organs are fully developed, but 22? At 26 weeks, the development of fetal organs is relatively complete, and there is more amniotic fluid, which is suitable for fetal malformation screening.
3. Abdominal four-dimensional ultrasound examination is not limited by time, except for patients who need bladder filling in the second and third trimester of pregnancy. In view of the pain of micturition and the unclear abdominal examination after transvaginal examination, it is suggested to use transvaginal four-dimensional ultrasound examination.
4, transvaginal four-dimensional ultrasound examination needs to empty the bladder, not urinate. You can check at any time, but use menstrual disinfectant to prevent infection.
What does color Doppler ultrasound check?
Some examination items can show the occurrence of various diseases, so when doing these examinations, it is necessary to let everyone know what color Doppler ultrasound is for.
1, color Doppler ultrasound is the main method for prenatal diagnosis of fetal and maternal diseases. The diagnostic rate of acute abdomen in obstetrics and gynecology is obviously higher than that in black and white ultrasound, such as ectopic pregnancy, incomplete abortion and adnexal inflammatory mass, intrauterine thrombosis, torsion of ovarian tumor and so on.
2. It also has high diagnostic value for cardiovascular diseases such as valvular heart disease, congenital heart disease, cardiomyopathy, cardiac tumor, cervical vascular disease, thoracic and abdominal vascular disease, huge vascular occlusion and thrombosis of limbs, aneurysm and arrhythmia of coronary heart disease and pulmonary heart disease.
3. Check the abdominal solid organs: liver, biliary system, spleen, pancreas, kidney, ureter, bladder, prostate, seminal vesicle, adrenal gland and digestive system.
4. Thyroid and parathyroid diseases: including goiter, thyroiditis, thyroid tumor or those who are positive in laboratory examination, and the cause of anterior cervical swelling is unknown; Patients with thyroid tumor compression, renal failure or abnormal blood calcium can be examined for hoarseness by color Doppler ultrasound.
5. Ultrasonic examination of body surface masses: including examination of neck, breast, scrotum, testis, maxillofacial region and some muscle tissues and other important diseases.
There are still some differences between color ultrasound and B ultrasound, especially for some pregnant women, who may have been exposed to both methods in pregnancy test. What's the difference between color ultrasound and B ultrasound?
Color Doppler only refers to high-definition black-and-white B-ultrasound and color Doppler ultrasound, both of which have the advantages of two-dimensional ultrasonic structural images and also provide rich hemodynamic information. Understandably, ordinary B-ultrasound is like a black-and-white photo, color B-ultrasound is like a color photo, and three-dimensional B-ultrasound is like a VCR shot by a camera. Ordinary B-ultrasound and B-ultrasound only see one plane, while three-dimensional B-ultrasound sees the three-dimensional image of the fetus, which is more comprehensive, true and clear from top to bottom.
Ultrasound examination is a medical examination project, and patients usually contact each other when they see a doctor. Clinically, color Doppler ultrasound is widely used in the diagnosis of cardiology, gastroenterology, urology and obstetrics and gynecology. Generally speaking, the radiation of color ultrasound is greater than that of black and white ultrasound. At the beginning of pregnancy, doctors are generally not allowed to do color ultrasound examination. In the early stage, they will carry out black-and-white B-ultrasound examination to determine the conceptual state and black-and-white of the fetus; In the medium term, the radiation of fetus B will be smaller. Can do color ultrasound.
Not only can you see the occurrence of diseases through color Doppler ultrasound, but also an important function for pregnant women is to see the sex of the fetus through color Doppler ultrasound. So how to see the sex of the fetus through color Doppler ultrasound?
The accuracy of color Doppler ultrasound is relatively high. In general, professional doctors can determine the sex of the fetus through color charts. The color ultrasound report only reports whether the fetus is abnormal and normal, not the sex of the baby.
Generally speaking, the doctor will only give you pictures of the fetal head. Because it is forbidden to use B-ultrasound or color Doppler ultrasound for fetal sex identification in this country, unless you have a good relationship with the doctor, there will be no gender report on the report card.