Different lipid contents between aldosterone-producing and nonhyperfunctioning adrenocortical adenomas: in vivo measurement using chemical-shift magnetic resonance imaging.

1994 ◽  
Vol 79 (6) ◽  
pp. 1759-1762
Author(s):  
Y Tsushima
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chemical Shift ◽  
Resonance Imaging ◽  
In Vivo Measurement ◽  
Lipid Contents ◽  
Adrenocortical Adenomas

scholarly journals Noninvasive Localization of Petroleum-derived Spray Oil in Plants with Chemical Shift Selective Magnetic Resonance Imaging

HortScience ◽  
2005 ◽  
Vol 40 (3) ◽  
pp. 720-725 ◽  
Author(s):  
B.L. Tan ◽  
N. Reddy ◽  
V. Sarafis ◽  
G.A.C. Beattie ◽  
R. Spooner-Hart
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chemical Shift ◽  
Mineral Oil ◽  
Resonance Imaging ◽  
Outer Cortex ◽  
Peak Resolution ◽  
Oil Deposits ◽  
Magnetic Resonance Imaging Mri

Nuclear magnetic resonance (NMR) spectroscopy and magnetic resonance imaging (MRI) were used to detect petroleum-derived spray oils (PDSOs) in citrus seedlings and trees. The NMR spectrum of the phantom containing 10% (v/v) of a nC24 agricultural mineral oil (AMO) showed the resonance of the water protons at δ ≈ 5 ppm, while the resonance of the oil protons at δ = 1.3 to 1.7 ppm. The peak resolution and the chemical shift difference of more than 3.3 ppm between water and oil protons effectively differentiated water and the oil. Chemical shift selective imaging (CSSI) was performed to localize the AMO within the stems of Citrus trifoliata L. seedlings after the application of a 4% (v/v) spray. The chemical shift selective images of the oil were acquired by excitation at δ = 1.5 ppm by averaging over 400 transients in each phase-encoding step. Oil was mainly detected in the outer cortex of stems within 10 d of spray application; some oil was also observed in the inner vascular bundle and pith of the stems at this point. CSSI was also applied to investigate the persistence of oil deposits in sprayed mature Washington navel orange (Citrus ×aurantium L.) trees in an orchard. The trees were treated with either fourteen 0.25%, fourteen 0.5%, four 1.75%, or single 7% sprays of a nC23 horticultural mineral oil (HMO) 12 to 16 months before examination of plant tissues by CSSI, and were still showing symptoms of chronic phytotoxicity largely manifested as reduced yield. The oil deposits were detected in stems of sprayed flushes and unsprayed flushes produced 4 to 5 months after the last spray was applied, suggesting a potential movement of the oil via phloem and a correlation of the persistence of oil deposit in plants and the phytotoxicity. The results demonstrate that MRI is an effective method to probe the uptake and localization of PDSOs and other xenobiotics in vivo in plants noninvasively and nondestructively.

scholarly journals In vivo measurement of myocardial mass using nuclear magnetic resonance imaging

1986 ◽  
Vol 8 (1) ◽  
pp. 113-117 ◽  
Author(s):  
Andrew M. Keller ◽  
Ronald M. Peshock ◽  
Craig R. Malloy ◽  
L. Maximilian Buja ◽  
Ray Nunnally ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Myocardial Mass ◽  
In Vivo Measurement ◽  
Nuclear Magnetic

Repeatability of a novel technique for in vivo measurement of three-dimensional patellar tracking using magnetic resonance imaging

2005 ◽  
Vol 22 (1) ◽  
pp. 145-153 ◽  
Author(s):  
Robert A. Fellows ◽  
Nick A. Hill ◽  
Norma J. MacIntyre ◽  
Mark M. Harrison ◽  
Randy E. Ellis ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Three Dimensional ◽  
Patellar Tracking ◽  
Resonance Imaging ◽  
In Vivo Measurement ◽  
Novel Technique
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