Hoʻohana ʻia ka mīkini ʻōpū Ultrasound e nānā i nā ʻano ʻano like ʻole, ka puʻuwai fetal a me ka neʻe ʻana o ka fetal o ka fetus, ka mea nui me ka hoʻohana ʻana i ka ʻōpū o ka ʻōpū, transvaginal probes, 4D probes, a me nā mea ʻē aʻe.