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Frequencies used
arrays used
The probe is coated with and covered with
Obstetric Scanning
GS meaning
Gestational sac appearance
describes a GS
fingerlike projections of trophoblast
2 bright concentric lines separated by anechoic fluid
pregnancies occur outside the uterus
Signs of 1st half of 1st trimester
confirms intrauterine pregnancy
small round anechoic filled center
increaes 5th-10th week
1-2 mm embryonic disk, b/n yolk and amniotic
Signs in 2nd half of 1st tri
amniotic sac
embryonic heart
skeletal system
umbilical cord
limbs
head and body become proportional
DETERMINING GESTATIONAL AGE
Signs of failed pregnancy
MC of ectopic pregnancy
MC location
types of ectopic pregnancy
1. empty gs
2. absent embryo
3. Empty amnion
4. dead embryo
5. Abortion in progress/ inevitable abortion
6. blighted twin
Gestational trophoblastic Disease
Complete mole
uts finding in complete mole
complete mole removed by
DILATATION AND CURETTAGE
Partial mole
Invasive mole
choriocarcinoma
