Ultra High Field Magnetic Resonance Imaging: A Historical Perspective

As one recalls the 1970s and some of the first steps in magnetic resonance imaging [1]–[4], it is easy to discern the great strides that have been made in this discipline over the past 30 years [5]–[7]. Early coarse and grainy results [4] have given way to exquisite anatomical and functional images [5]–[7]. The availability of MRI is now synonymous with quality of medical care, even within the rural hospital setting, and the 1.5 Tesla scanner has become a workhorse of the modern radiological exam. With the exception of CT, and this primarily in the abdomen, no other radiological modality can compete with MRI, not only in terms of the breadth of exams currently possible, but also in the future promise of the technique. Indeed, it seems that every year new clinical applications join the arsenal of MRI exams. Soon, it is anticipated that MRI will be able to fully scan the entire body [8] in great detail, including the most difficult thoracic [9]–[17] and abdominal locations [18]–[22]. Technical advancements forged and tested in the research laboratories of the world [23]–[40] continue to add to the versatility and power of MRI scanners. Nonetheless, what is perhaps most fascinating relative to the evolution of MRI is the seemingly untapped potential that remains. The spawning of new techniques may well open up tremendous venues for MRI in the coming decades. Thus, the clinical horizon is imperceptible. One is left only with the realization that future progress may well surpass all contributions to date.