Yes, MRI and MRA can be performed without contrast. MRI with gadolinium-based contrast agents provides additional diagnostic information as compared to MRI without contrast. The use of gadolinium-based contrast agents in MRA is not FDA approved.MRA with gadolinium-based contrast is thought by many radiologists to provide more detailed images of blood vessels than MRA without gadolinium-based contrast.he use of gadolinium-based contrast agents in MRA is not FDA approved. MRA with gadolinium-based contrast is thought by many radiologists to provide more detailed images of blood vessels than MRA without gadolinium-based contrast.
In the USA, a school counselor is a certified educator with a master's degree in school counseling (usually from a Counselor Education graduate program) with school counseling graduate training including qualifications and skills to address all studentsâ academic, career, college access and personal/social needs.
Answer   Generally, you need a teaching certificate and experience teaching. A common expectation is that you will have taught for at least three years. Then, you go for â¦ additional university classes (not sure if it is a master's degree) to become a guidance counselor.o, you can become a school social worker but not a school guidance counselor. In order to be a school counselor, you need to meet certification standards by your state which â¦ require specific internship experiences under a certified school counselor.