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Multiparametric segmentation techniques, which require integration of 2 or more MRI sequences, are the newest method.13 In one study,56 for example, proton-density and T2-weighted sequences and T1- and T2-weighted images were combined and used to calculate lesion area.47 These approaches provide...
(Biological Magnetic Resonance Data Bank), which Collects NMR (Nuclear Magnetic Resonance) data from any experiment and captures assigned chemical shifts, coupling constants, and peak lists for a variety of macromolecules; contains derived annotations such as hydrogen exchange rates, pKa values, and ...
concentration values, either by estimating the T1 relaxation time at each dynamic time frame, or by assuming a linear relationship between MR signal intensity and contrast agent concentration. After conversion to concentration, pixel-by-pixel or region of interest (ROI) concentration curves are typical...
Updated integration methods, phasing, and solvent referencing tools Functional improvements to macros Updated integration methods (integral standardized to sum 1.0) Updated phasing algorithm Raw file retains name of parent folder (meets standard naming convention for raw NMR data) ...
Explain the theory and features of Fluorescence spectroscopy, and what are the advantages and disadvantages of it, and when we do experiment what aspects need attention? How would you analysed the H NMR spectra of 9-fluorenone providin...
Name the below compound and state how many lines are observed in its 13C NMR spectrum. What is the NMR labeled structure for the product 2,3-dibromo-3-phenylpropanoic acid? Stereochemistry is erythro (diastereomers). The label structure provides ...
CT systems offer an isotropic spatial resolution of about 0.5 mm and, therefore, are best suited for anatomical imaging. The physical property that is displayed in CT is the distribution of the linear attenuation coefficients. For convenience, the values are linearly transformed to become integer...
The noted glycerol increases after fructose ingestion are either greater or similar compared with the values after glucose ingestion, and the produced glycerol can be oxidized for energy. However, the metabolic balance between glycerol produced from fructose and central pathway trioses has not been ...
NMR studies of bond orders in heteroaromatic systems Fifty-seven values for the ortho-benzylic coupling constant 4JMeCCH (henceforth denoted as 4JOB) were obtained for a variety of heteroaromatic systems. It ... JE Gready,PM Hatton,S Sternhell - 《Journal of Heterocyclic Chemistry》 被引量: 31...