What do TIB and MI mean respectively?

TIB and MI represent amniotic fluid and baby length, respectively.

TIB and MI are abbreviations for examination items in color Doppler ultrasound, which are simply high-definition black-and-white B-ultrasound plus color Doppler.

First of all, let's talk about the ultrasonic frequency shift diagnosis method, that is, D-mode ultrasound. This method applies the principle of Doppler effect. When there is relative motion between the sound source and the receiver (that is, the probe and the reflector), the frequency of the echo changes, which is called frequency shift. Two-dimensional ultrasound includes pulsed Doppler, continuous Doppler and color Doppler blood flow images. At present, the development direction of B-ultrasound in the medical field is color ultrasound.

Extended data

Four-dimensional color Doppler ultrasound diagnosis of fetal congenital malformation mainly includes the following aspects:

1, fetal facial deformity: such as cleft lip and palate.

2. Nervous system: anencephaly, hydrocephalus, microcephaly, spina bifida and meningocele.

3. Digestive system: omphalocele, visceral eversion, intestinal atresia, Hirschsprung's disease.

4. Urinary system: hydronephrosis, polycystic kidney, huge bladder and urethral obstruction.

5. Other deformities: short limb deformity, conjoined deformity, cleft lip, and four cavities.

6, too much amniotic fluid, too little, etc.

Application scope of four-dimensional color Doppler ultrasound;

1, the fetal age can be determined.

2, can evaluate multiple births or high-risk pregnancy.

3, can analyze the development of the fetus.

4. Detection of placental abnormality.

5. Abnormal pregnancy such as ectopic pregnancy can be detected.

6, can find out the abnormal structure of the uterus.

7. Placenta can be located.

8, can detect fetal abnormalities.

9, can find abnormal bleeding.

10 can detect ovarian tumors and fibromas.

1 1 can observe the growth and development of the fetus from many directions and angles, and provide scientific basis for early diagnosis of fetal body surface malformation and congenital heart disease.

12, can automatically take "photos" and dynamic videos for the fetus, or real-time moving images of human internal organs.

References:

Baidu Encyclopedia: Four-dimensional Color Doppler Ultrasound