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- W1747478834 abstract "To determine the correlation between the image quality of the endometrial-myometrial junction (EMJ) at 3D ultrasound and the focal distance. To evaluate the image quality of the EMJ using power Doppler imaging. An initial group of 183 consecutive patients was selected from Leuven Bleeding Clinic database. All ultrasound examination was performed using a vaginal probe 6–12 MHz on a Voluson E8. After exclusion of 37 patients who did not have a final histological diagnosis and 28 patients with incomplete data, 118 study patients remained for evaluation. The first author reconstructed the volumes in a 2D coronal plane, giving a score (good, moderate, poor, insufficient) for the image quality of the EMJ and reporting for each volume the focal distance from the probe. Thirty eight volumes were considered insufficient and excluded from the study. The remaining 80 volumes were attributed to a second score (good, moderate, poor and insufficient) for evaluation of the EMJ in a 2D coronal plane with and without power Doppler imaging. The Pearson correlation coefficient was used to calculate correlation between focal distance and image quality, and significance assessed using a t-test. Differences in image quality between a 2D coronal plane with and without color Doppler imaging were assessed using the Wilcoxon signed rank test. A higher focal distance was correlated with a lower image quality (P-value < 0.001). The average (range) focal distance for a good, moderate, poor and insufficient image quality was 5.4 cm (4.1–6.6), 5.4 cm (3.3–7.4), 6.2 cm (4.8–7.8) and 6.2 cm (4.1–10.1), respectively. The image quality to display the EMJ using power-Doppler imaging was worse than without (P-value < 0.05). Using a 6–12 MHz vaginal probe, focal distances from the probe exceeding 7.4 cm are associated with a poor or insufficient image quality. The image quality for assessing the EMJ is better without power Doppler imaging." @default.
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- W1747478834 date "2012-09-01" @default.
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- W1747478834 title "OP36.08: Optimization of the image quality of endometrial-myometrial junction (EMJ)" @default.
- W1747478834 doi "https://doi.org/10.1002/uog.11747" @default.
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