 |
|
Nuclear Magnetic Resonance ImagingA Promising Technique
A. Everette James, Jr, MD, JD, ScM;
Ronald R. Price, PhD;
F. David Rollo, MD, PhD;
James A. Patton, PhD;
Jon J. Erickson, PhD;
Craig M. Coulam, MD, PhD;
C. Leon Partain, MD, PhD
JAMA. 1982;247(9):1331-1334.
|
|
| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
|
|
|
NUCLEAR magnetic resonance (NMR) imaging is a technique by which the quantitative analysis of a biological structure or tissue sample may be determined. The various approaches to be discussed in this article all depend on the fact that certain atomic nuclei behave as small magnets. When these nuclei are placed in static magnetic fields, some will align themselves in the direction of the field. In this configuration they will rotate about the field direction (precess) at a frequency that is dependent on the strength of the applied magnetic field (Bo). If in this circumstance these aligned and precessing nuclei are exposed to an alternating magnetic field (radio frequency [RF]) of the same frequency, some of these nuclei will be forced from their equilibrium state to a higher energy level. When the interrogating RF is removed, the excited nuclei will emit the added energy and return to their former state. The
. . . [Full Text PDF of this Article]
Author Affiliations
From the Departments of Radiology and Radiological Sciences (Drs James, Price, Rollo, Patton, Erickson, and Coulam), Medical Administration (Dr James), Physics and Astronomy (Dr Price), Biomedical Engineering (Dr Partain), and the Institute for Public Policy (Dr James), Vanderbilt University School of Medicine, Nashville, Tenn.
Footnotes
Reprint requests to Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232 (Dr James).
 CiteULike  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter
What's this?
|
