About Alpha 3T MRI. Alpha 3T MRI is a top-rated diagnostic radiology practice located in midtown Manhattan, New York City. Led by board-certified radiologist Dr. Karl L. Hussman, the practice provides a full scope of diagnostic imaging services to patients from the greater New York City region and beyond.. Dr. Hussman and the team at Alpha 3T MRI use state-of-the-art technology to help ....