The phrase "attenuation was used" is correct and usable in written English.
It can be used in contexts related to science, engineering, or communication, where a reduction in signal strength or intensity is being discussed.
Example: "In the experiment, attenuation was used to measure the loss of signal strength over distance."
Alternatives: "reduction was applied" or "diminution was utilized."
The frequency dependent attenuation was used to classify regions of each specimen into three types of tissue: Normal, benign changes, and invasive carcinoma.
The liver attenuation index (LAI), derived from the difference between the mean hepatic and splenic attenuation, was used as a parameter for the diagnosis of NAFLD.
High resolution computed tomography (HRCT) has a high sensitivity and specificity for diagnosing pneumocystis infection, particularly when the presence of patchy or nodular ground-glass attenuation was used to indicate this [ 90- 92].
In this case, some physical properties, as frequency-dependent sound velocity and attenuation, are used.
For receiver operating characteristic (ROC) analysis, percentage intramuscular fat and skeletal muscle attenuation were used alone or in combination to discriminate subjects according to the presence of fibre shift.
PET data that had already been attenuation corrected was used due to the clinical pipeline and the use of PET data without attenuation correction will be considered in the "Discussion" section.
Attenuation correction was used for all patients.
No attenuation correction was used as it was not supported in the reconstruction software for gated data.
For all other measurements, attenuation correction was used in the reconstruction by importing a CT-scan of the phantom.
In addition, an acrylic attenuation shield was used for selected samples to control the penetration of the e-beam.
A light attenuation technique was used to measure the density distribution and vertical profile of the horizontal velocity of the current.
