In clinical MR imaging, the patient is placed within a strong magnetic field; the strength of the magnetic field used most commonly is:: (A) 1.5 T, (B) 0.15 T, (C) 15 T, (D) 7 T
Answer is A. In clinical MR imaging, the patient is placed within a strong magnetic field. The field strengths range from 0.1 to 7 T, with 1.5 T being the most common (1.5 T is about 30,000 times the strength of the earth's magnetic field).