1 April 2016 Analysis of patient movement during 3D USCT data acquisition
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Proceedings Volume 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography; 979009 (2016); doi: 10.1117/12.2216680
Event: SPIE Medical Imaging, 2016, San Diego, California, United States
In our first clinical study with a full 3D Ultrasound Computer Tomography (USCT) system patient data was acquired in eight minutes for one breast. In this paper the patient movement during the acquisition was analyzed quantitatively and as far as possible corrected in the resulting images. The movement was tracked in ten successive reflectivity reconstructions of full breast volumes acquired during 10 s intervals at different aperture positions, which were separated by 41 s intervals. The mean distance between initial and final position was 2.2 mm (standard deviation (STD) ± 0.9 mm, max. 4.1 mm, min. 0.8 mm) and the average sum of all moved distances was 4.9 mm (STD ± 1.9 mm, max. 8.8 mm, min. 2.7 mm). The tracked movement was corrected by summing successive images, which were transformed according to the detected movement. The contrast of these images increased and additional image content became visible.
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N. V. Ruiter, T. Hopp, M. Zapf, E. Kretzek, H. Gemmeke, "Analysis of patient movement during 3D USCT data acquisition", Proc. SPIE 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography, 979009 (1 April 2016); doi: 10.1117/12.2216680; http://dx.doi.org/10.1117/12.2216680

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