The impact of simulated motion blur on lesion detection performance in full-field digital mammography

The British Journal of Radiology
Ahmed K AbdullahPeter Hogg

Abstract

Motion blur is a known phenomenon in full-field digital mammography, but the impact on lesion detection is unknown. This is the first study to investigate detection performance with varying magnitudes of simulated motion blur. 7 observers (15 ± 5 years' reporting experience) evaluated 248 cases (62 containing malignant masses, 62 containing malignant microcalcifications and 124 normal cases) for 3 conditions: no blurring (0 mm) and 2 magnitudes of simulated blurring (0.7 and 1.5 mm). Abnormal cases were biopsy proven. Mathematical simulation was used to provide a pixel shift in order to simulate motion blur. A free-response observer study was conducted to compare lesion detection performance for the three conditions. The equally weighted jackknife alternative free-response receiver operating characteristic was used as the figure of merit. Test alpha was set at 0.05 to control probability of Type I error. The equally weighted jackknife alternative free-response receiver operating characteristic analysis found a statistically significant difference in lesion detection performance for both masses [F(2,22) = 6.01, p = 0.0084] and microcalcifications [F(2,49) = 23.14, p < 0.0001]. The figures of merit reduced as the magnitude of sim...Continue Reading

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Jan 8, 2016·The British Journal of Radiology·Wang Kei MaPeter Hogg

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Citations

Feb 6, 2020·Medical Physics·Nada Kamona, Murray Loew
Apr 6, 2021·European Journal of Radiology·Joana BoitaIoannis Sechopoulos

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