scholarly journals Nuclear Magnetic Resonance Imaging

1982 ◽  
Vol 35 (6) ◽  
pp. 761 ◽  
Author(s):  
JM Pope
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nuclear Magnetic Resonance ◽  
Clinical Trials ◽  
Magnetic Resonance ◽  
Medical Physics ◽  
Nmr Imaging ◽  
Resonance Imaging ◽  
New Techniques ◽  
Nmr Methods ◽  
Nuclear Magnetic

The principles of two new techniques of medical physics, nuclear magnetic resonance (NMR) imaging and topical magnetic resonance, are outlined. Progress in the development of these techniques and their application in clinical trials is reviewed. Advantages of NMR methods over existing imaging modalities are discussed. Finally some safety aspects are considered.

NUCLEAR MAGNETIC RESONANCE IMAGING AND PROTON SPECTROSCOPY USED AS A TECHNIQUE TO ASSESS MAMMARY GLAND COMPOSITION IN HOLSTEIN HEIFERS

1990 ◽  
Vol 70 (4) ◽  
pp. 1151-1154 ◽  
Author(s):  
K. STELWAGEN ◽  
B. W. McBRIDE ◽  
D. G. GRIEVE ◽  
R. A. TOWNER
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nuclear Magnetic Resonance ◽  
Mammary Gland ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Imaging ◽  
Nmr Imaging ◽  
Resonance Imaging ◽  
Proton Spectroscopy ◽  
Imaging And Spectroscopy ◽  
Nuclear Magnetic

Mammary glands of eight nonpregnant, nulliparous Holstein heifers (416 ± 11 d) were used to study the potential for nuclear magnetic resonance (NMR) imaging and proton spectroscopy as a technique to assess mammary gland composition. It was concluded that the NMR technique has the potential to quantitate mammary gland composition in heifers. Key words: Nuclear magnetic resonance imaging and spectroscopy, mammary composition, Holstein heifers

Observations on water distribution in soybean seed during hydration processes using nuclear magnetic resonance imaging

2002 ◽  
Vol 82 (3) ◽  
pp. 513-519 ◽  
Author(s):  
L. N. Pietrzak ◽  
J. Frégeau-Reid ◽  
B. Chatson ◽  
B. Blackwell
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Water Distribution ◽  
Soybean Seed ◽  
Nuclear Magnetic Resonance Imaging ◽  
Embryonic Axis ◽  
Nmr Imaging ◽  
Resonance Imaging ◽  
Nuclear Magnetic

Water in seeds plays an important role not only in physiological but also in chemical processes. In addition to the requirements of water for germination, seeds of legumes used for human consumption require hydration to prepare them for cooking. The site of water entry, however, and its movement during imbibition in legumes and particularly in soybean is still not clear. One of the best and most precise methods of tracing water movement in plant tissue is nuclear magnetic resonance (NMR) imaging. In our study, we applied NMR imaging to reveal the water distribution in soybean seeds during the first 24 h of hydration. It has been found that hydration during this period is a multistage process. Water enters the seed through the micropyle and hilum and the concentration of water there is very high during the entire imbibition process. Inside the seed, water first fills the voids between cotyledons, and between the cotyledons and the seed coat. Water then enters the embryonic axis, and from it, is distributed into cotyledons. The highest water concentration after 24 h of imbibition was observed in the embryonic axis. The external part of the cotyledons was hydrated at a slower rate than the internal tissue. Key words: Soybean, Glycine max L., nuclear magnetic resonance imaging, water imbibition, water distribution

26. Nothing but the truth, so help me God: The history of magnetic resonance imaging

2007 ◽  
Vol 30 (4) ◽  
pp. 41
Author(s):  
A. Dechant
Keyword(s):  
Magnetic Resonance Imaging ◽  
New York ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nobel Prize ◽  
Resonance Imaging ◽  
Solid State Physics ◽  
Magnetic Resonance Imaging Mri ◽  
The Times ◽  
Nuclear Magnetic

On the morning of October 10, 2003, the residents of New York awoke to find that an entire page of their beloved paper, The Times, had been usurped for the sole purpose of flagrant self-promotion and protestation. On his own behalf, Dr. Raymand Damadian had purchased a one page spread bemoaning his exclusion in the Nobel Prize for Medicine that year which had previously been awarded to Paul Laterbur and Peter Mansfield for their contributions to the development of Magnetic Resonance Imaging (MRI). Over the course of the next few months, the public was to witness a series of such articles proclaiming that a shameful wrong had been committed, and that the truth would eventually prove Dr. Damadian’s accusations. That truth lay in the early theoretical and technical foundations that led to the discovery of MRI. Described just after the Second World War, nuclear magnetic resonance (NMR) was hailed as a breakthrough in physical chemistry for which Felix Bloch and Edward Purcell were awarded the Nobel Prize in Physics in 1952. Two decades later, in 1971, Dr. Damadian discovered that differences between the NMR signals of cancerous and normal tissue might provide a rapid means of cancer detection. However, Laterbur and Mansfield were the first to actually demonstrate images of live tissue using the application of magnetic gradients – the key to modern MRI. Though speculation exists that Dr. Damadian may have been excluded from the prize due to his religious beliefs or political rivalry, only time will reveal the whole truth when the Nobel files are opened 50 years hence. Bradley W. The Nobel Prize: Three Investigators Allowed but Two Were Chosen. Journal of Magnetic Resonance Imaging 2004; 19:520. Laterbur P. Image formation by induced local interactions: examples of employing nuclear magnetic resonance. Nature 1973; 242:190-191. Mansfield P, Grannell P. “NMR diffraction in solids?” Journal of Physics C: Solid State Physics 1973; 63:L433-L426.

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