halo 4dUSG fetomaternal berfungsi mendeteksi potensi kelainan ibu hamil dan janin. Sementara USG 4D berguna mendeteksi kondisi perkembangan janin.Two different lasers are combined in the HALO 4D. The Halo ® fractional laser delivers two different wavelengths, 1470-nm and 2940-nm simultaneously. The Dynamis Fotona 4D ® uses