Sentence examples for time attenuation from inspiring English sources

PTT can be calculated by evaluating the time attenuation graph obtained from the test bolus (Fig. 1).

Evaluating the time attenuation curves generated by either of these techniques is important to understand normal and abnormal contrast arrival and pulmonary transit time.

Following corrections for decay, dead time, attenuation, random and scatter, scans were reconstructed using a 3D ordinary Poisson ordered subsets expectation maximization algorithm.

The aim of this study was to evaluate the interrelation of PET acquisition time, attenuation correction, halo artefacts, and resulting lesion detectability in whole-body 68Ga-PSMA PET-MRI.

Following corrections for decay, dead time, attenuation, randoms and scatter, scans were reconstructed using a 3D ordinary Poisson ordered subsets expectation maximization algorithm for mice and a 3D ordered subsets weighted least squares algorithm for rats, which show comparable quantitative accuracy [14].

All emission scans were reconstructed using ordered subset expectation maximization (OSEM, 4 iterations, 16 subsets) with a Hanning filter with a cutoff at 0.5 times the Nyquist frequency and included the usual corrections for normalization, decay, dead time, attenuation, scatter, and randoms [13].

In particular, we examine how restriction affects the short-time attenuation of different coherence pathways, all excited with the same sequence of slice-selective radiofrequency (RF) pulses, and how the various pathways make the transition to the long-time or tortuosity regime.

France took over the initiative and its small satellite DEMETER (Parrot et al. 2006) has already clarified through statistical analysis of 9000 EQs that the night-time attenuation of VLF range electromagnetic emission occurs 4 h before EQs larger than M4.8.

The maximum trough-to-crest tsunami amplitudes are 34.1 and 3.3 cm at these two stations, respectively, indicating 20 times attenuation of tsunami amplitude for traveling 230 km from the epicenter to the Syros station.

The arterial input function was derived from the time-attenuation curve from ROIs comprising both anterior cerebral arteries in cross section, and the rCBF (in millilitre per minute per 100 mL) was calculated using a deconvolution approach.

By applying the perfusion software, quantitative parameter images were generated from the time-attenuation curves.