5 research outputs found
Coefficient of variation for repeated measurements of phantom ADC along each of the main orthogonal directions ( - <i>i</i> = 1, readout/left-right; <i>i</i> = 2, phase-encoding/anterior-posterior; <i>i</i> = 3, slice-selection/head-foot) for scanner-A, scanner-B and scanner-C.
<p>The bar charts depict the mean value ± standard deviation within ROI<sub>ref</sub>.</p
Axial 2D diffusion-weighted spin echo - echo planar imaging (DWI-SE-EPI) sequence: acquisition parameters for scanner-A, scanner-B and scanner-C.
CV<sub></sub> and CV<sub>MD</sub> results [mean value (standard deviation within ROI<sub>ref</sub>)] as well as NU<sub></sub> and NU<sub>MD</sub> results [mean value (standard deviation across five repetitions)] for scanner-A, scanner-B and scanner-C.
Phantom ADC along each of the main orthogonal directions (ADC<sub>i</sub> - <i>i</i> = 1, readout/left-right; <i>i</i> = 2, phase-encoding/anterior-posterior; <i>i</i> = 3, slice-selection/head-foot) for scanner-A, scanner-B and scanner-C.
<p>The bar charts depict the mean of the average value within ROI<sub>ref</sub> ± standard deviation across five repetitions. The dashed line represents the known phantom diffusion coefficient (2.14±0.03×10<sup>−3</sup> mm<sup>2</sup>/s) at the reference temperature value of 22°C.</p
Non-uniformity of maps of phantom ADC along each of the main orthogonal directions ( - <i>i</i> = 1, readout/left-right; <i>i</i> = 2, phase-encoding/anterior-posterior; <i>i</i> = 3, slice-selection/head-foot) for scanner-A, scanner-B and scanner-C.
<p>The bar charts depict the mean value ± standard deviation across five repetitions.</p