Two-year programs are most prevalent. Look for a program that is accredited by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) . For information on how to become a registered diagnostic medical sonographer, see the American Registry for Diagnostic Medical Sonography.verview. Diagnostic medical sonographers use sound waves to generate images used for assessing and diagnosing various medical conditions. Many people associate sonography with pregnancy. It's how a fetus can be seen in the womb.
The porta hepatis, or hilum of the liver, is a deep, short, transverse fissure that passes across the left. posterior aspect of the undersurface of the right. lobe of the liver. It separates the caudate lobe and. process from the quadrate lobe and meets the. left sagittal fossa perpendicularly (1).
Patent ductus arteriosus (PDA) is a heart defect that occurs when the ductus arteriosus (the temporary fetal blood vessel that connects the aorta and the pulmonary artery) does not close at birth.uctus arterioÂ´sus a fetal blood vessel that joins the aorta and pulmonary artery. ductus deÂ´ferens the excretory duct of the testis, which joins the excretory duct of the seminal vesicle to form the ejaculatory duct; called also vas deferens. patent ductus arteriosus see patent ductus arteriosus.