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Prospective Assessment of Variability and Reproducibility of Diffusion-Weighted MRI and T2-Mapping of the Pancreas in Healthy Volunteers

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Results: We observed mean ADC values (x 10-3 mm2/sec) of head: 1.50 1.56, neck: 1.38 1.61, body: 1.32 1.37 and tail: 1.19 1.20. The mean T2relaxation times (msecs) were head:… Click to show full abstract

Results: We observed mean ADC values (x 10-3 mm2/sec) of head: 1.50 1.56, neck: 1.38 1.61, body: 1.32 1.37 and tail: 1.19 1.20. The mean T2relaxation times (msecs) were head: 60.23 63.14, neck: 57.80 58.63, body: 58.78 59.69 and tail: 58.82 59.99. Based on CVs, lower inter-scan session and inter-observer variability were consistently calculated for T2-relaxation times (CV of ~4%) compared to ADCs (CV of ~18%). Bland-Altman analyses did not reveal any systematic trends in bias.

Keywords: variability reproducibility; reproducibility diffusion; variability; diffusion weighted; prospective assessment; assessment variability

Journal Title: Microsurgery
Year Published: 2017

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