考试分类

Examination	Corresponding Specialty Exam	Credential Earned
SPI The Sonography Principles and Instrumentation (SPI) examination	Abdomen(AB)	RDMS Registered Diagnostic Medical Sonographer
	Breast(BR)
	Fetal Echocardiography(FE)
	Neurosonology(NE)
	Obstetrics and Gynecology(OB/GYN)
	Adult Echocardiography(AE)	RDCS Registered Diagnostic Cardiac Sonographer
	Fetal Echocardiography(FE)
	Pediatric Echocardiography(PE)
	Vascular Technology(VT)	RVT Registered Vascular Technologist
MSK Musculoskeletal Sonography Exam		RMSK Registered in Musculoskeletal
PVI Physicians’ Vascular Interpretation Examination		RPVI Registered Physician in Vascular Interpretation