Sentence examples for fixed attenuation from inspiring English sources

Each class is then assigned a fixed attenuation value.

For a fixed attenuation degree, we observe that the smoother denoising is obtained with the larger threshold (universal threshold).

A second mouse click initiated the automated volume measurement, which included the following steps [ 14]: first, a fixed attenuation threshold of −400 HU was applied to extract a 3D-connected "structure of interest".

With Skyscan analysis software, these datasets were segmented by using a fixed attenuation threshold between air (30) and subchondral bone (120), selected visually for the best segmentation result in all datasets.

The radioactivity (cps/g) of the whole blood was measured in a cross-calibrated well-type scintillation counter (Shimadzu Co, Kyoto, Japan), and fixed in attenuation correction to the FBPA injection time.

The threshold used to define cortical bone was fixed at a linear attenuation coefficient of 0.93 cm−1 to minimize partial volume effect.

Then, external disturbance attenuation with a fixed rate according to the H∞ criterion is ensured.

It should be noted that reduced diffusion occurring in fixed tissues may influence signal attenuation, which at the employed diffusion weighting (b = 800 s/mm) in theory can bias diffusion sensitivity towards the fast diffusion component in the tissue.

Indeed, when the value of the intensity of the first pixel of the fit was below a certain threshold, the relative attenuation coefficient was fixed at a null value.

This template is then converted to 511 keV [36 38] and incorporated into the patient attenuation map at a fixed position.

It is well known that fixed effects estimation substantially exaggerates the attenuation bias when estimated on variables suffering from classical measurement error (Angrist and Krueger 1999).