Sentence examples for methods for attenuation from inspiring English sources
All these studies have in common that they build on accurate methods for attenuation correction (AC) of the phantoms involved.
SPECT imaging has long been considered a qualitative modality; however, new methods for attenuation correction, scatter correction, compensation for distance-dependent blurring/collimator-detector response, and partial volume correction have allowed for true quantitative SPECT to be performed [16].
Method AC1 provides a standard method for attenuation correction, given that the LAC calculated from the bi-linear scaling of CT data from each GBCA step is being used to correct its corresponding PET scan.
Here we develop and experimentally validate a practical method for attenuation correction based on a Chang first-order method.
Among the methods tested for attenuation of renal IRI are many drugs [ 22, 23], endocrine hormones [ 24], erythropoietin [ 21], and small interfering RNA [ 25].
As such, considerable attention has been given to its interpretation [ 1- 3] as well as to the methods for correcting attenuation due to random measurement error [ 4, 5].
We recently introduced an optical-contour-based modified Chang method [14] for attenuation correction in multi-pinhole SPECT, which is applied post-reconstruction and leads to small quantitative errors (1.7% and 2.1% on average in phantom and rat studies with 99mTc, respectively) [15].
This study presents a new MR-based method for bone attenuation correction, based on 31P-MRI of hydroxyapatite crystals.
The purpose of this study was to develop an alternate method for bone attenuation correction based on NMR.
Simulation results indicate the effectiveness of the proposed method for noise attenuation, which might be of direct benefit to engineering applications.
We propose an efficient wavelet-based method for artifacts attenuation while minimizing distortions, using a stationary wavelet transform (SWT) modeling the wavelet coefficients as a Laplace distribution.
