The Jagust Lab is using statistical and computational approaches to refine PET scan sensitivity.
Similar findings were seen in six gliosarcomas, two of which were not visualized by either pre- or post-contrast enhanced CT scans (sensitivity of 66%).
Tumors are better seen on arterial-dominant phase scans than on portal venous phase scans (sensitivity 100% vs. 86%).
Tumors are better seen on arterial-dominant phase than on portal venous phase scans (sensitivity, 100% vs. 86%).
When selecting an MS, a variety of important factors should be considered such as the m/ z range to scan, sensitivity, resolution, vacuum system, and gas supply.
CopasiWeb [ 49] provides stochastic and deterministic time course simulation (steady state, time course, metabolic control analysis, parameter scan, sensitivity analysis, parameter estimation).
CT scan sensitivity and specificity are claimed to be 95% but this high percentage can only be reached in clinically high suspected VPGI [ 7– 9].
A curve representing the long range A-Scan sensitivity was calculated as a sum of fitted curves for the single A-scan sensitivities. Figure 5 shows that the sensitivity of each individual channel drops by more than 6 dB for an OPD = 2 mm away from the maximum, giving less than 4 mm usable range for a single channel.
A number of scans smaller than this is only possible, when compromising either the per-scan sensitivity (e.g. by gradients during evolution) or coherence selectivity (e.g. by omitting axial peak suppression).
But since the same modifications can also be applied to the corresponding phase-cycled correlation experiments, 17 the MQD gain in per-scan sensitivity, as outlined below, can also be applied to these sensitivity improved experiments.
