hello4dWhat is 2D, 3D and 4D? 2D is the standard black and white ultrasound. This type of ultrasound is recommended for babies that are 20 weeks and younger. 2D is the preferred type of imagingSelamat datang di situs HELLO4D yang berlisensi hak izin resmi di miliki Fakultas Keguruan dan Ilmu Pendikan dalam pembentukan transformasi slot gor.