PubMed · 8133395
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J R Salisbury, W F Whimster. 1993. Progress in computer-generated three-dimensional reconstruction.. https://doi.org/10.1002/path.1711700303
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Recommendations are made for hardware and software capabilities that will permit a level of performance of comparative genomic hybridization (CGH) analysis on metaphase chromosomes that is comparable to the best current practice. Guidelines for interpreting the results of CGH analysis in terms of chromosomal gains or losses are also presented.
Potentialities for implementing simple neural net information processing devices based on chemical and biochemical dynamic media are discussed. This approach gives an opportunity to construct efficient systems capable of performing some primitive operations important for imaging processing.
To improve accuracy and feasibility of the proton spin-lattice relaxation time (T1) measurements in routine Magnetic Resonance Imaging (MRI), a phantom with polyvinyl alcohol gels and gadrinium diethylene triamine pentaacetic acid solutions was imaged with 1.5T clinical MR units and T1s were calculated by fitting several models to the observed signal intensities. When an inversion-recovery sequence was applied, we were able to measure T1 with a high degree of precision by taking into account the imperfection of the inversion pulse. With a Turbo-fast low angle shot sequence, we were able to obtain T1 in a short time, but low signal-to-noise ratio limited the precision. Signal intensity with SE sequence was susceptible to variation with the effective flip angle of 90 degrees RF pulse and not suited for T1 measurement.