Prenatal diagnosis by FISH technique in fetal cystic hygromas

Background: Cystic hygromas is a common abnormal event in obstetrics ultrasound, which is induced by a chromosome disorder; it is also one of the major causes inducing fetus\u2019s congenital malformation. Objective: Determining chromosomal aberration in nuchal cystic hygromas by FISH technique and outcomes the value of factors in prognosis fetuses with cystic hygroma. Subject and methods: 53 fetuses with cystic hygroma, which are detected by ultrasound scan, are analyzed by FISH technique. Compare results of FISH, band G chromosomal analysis, ultrasonographic abnormalities, followed the fetuses. Results: Chromosomal and FISH analysis give the same detection: abnormal chromosomes: 75.46%, the highest rate is Turner syndrome: 50.94%, normal chromosome: 24.53%. Abnormal chromosomal fetuses: multi-malformation, grim prognosis. Cystic hygroma with other malformation in scan: high rate chromosomal aberrations and septated hygroma, Turner syndrome fetuses have large cystic hygroma, 4/6 fetuses with normal chromosome and without other abnormal result scan have resolutions of hygroma in the second trimester, normal birth. Conclusions: Abnormal chromosomes: 75.46%. Prognosis is grim: abnormal chromosomes, other malformations in scan, large cystic, septated hygroma. Prognosis is better: normal chromosomes, without other ultrasonographic abnormalities, small cystic, nonseptated hygroma, resolution of cystic hygroma.

Primarily study on the features of ultrasound Doppler images in patients with hepatocellular cancer (HCC)

Authors implemented the study to find characteristics of Doppler ultrasonic images in patients with HCC. This is a prospective study and carried out in B¹ch Mai Hospital. In the study on 15 patients, who had positive diagnosis of HCC, were selected. All of them underwent Doppler ultrasound and hepatic arteriography. Intra-tumoral and peri-tumoral flow is found with Doppler U.S 86.6% of tumors compared to the results of hepatic arteriography. The average peak velocity of hepatic artery and intratumoral artery is 83.3 and 57.2 cm/s respectively. The resistive Index is from 0.4 to 0.88 in intratumoural vessels.