Glasses for 3D ultrasound computer tomography: phase compensation

M. Zapf; T. Hopp; N. V. Ruiter

doi:10.1117/12.2217228

21 March 2016 Glasses for 3D ultrasound computer tomography: phase compensation

M. Zapf, T. Hopp, N. V. Ruiter

Proceedings Volume 9784, Medical Imaging 2016: Image Processing; 97843P (2016) https://doi.org/10.1117/12.2217228
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

Ultrasound Computer Tomography (USCT), developed at KIT, is a promising new imaging system for breast cancer diagnosis, and was successfully tested in a pilot study. The 3D USCT II prototype consists of several hundreds of ultrasound (US) transducers on a semi-ellipsoidal aperture. Spherical waves are sequentially emitted by individual transducers and received in parallel by many transducers. Reflectivity volumes are reconstructed by synthetic aperture focusing (SAFT). However, straight forward SAFT imaging leads to blurred images due to system imperfections. We present an extension of a previously proposed approach to enhance the images. This approach includes additional a priori information and system characteristics. Now spatial phase compensation was included. The approach was evaluated with a simulation and clinical data sets. An increase in the image quality was observed and quantitatively measured by SNR and other metrics.

Citation Download Citation

M. Zapf, T. Hopp, and N. V. Ruiter "Glasses for 3D ultrasound computer tomography: phase compensation", Proc. SPIE 9784, Medical Imaging 2016: Image Processing, 97843P (21 March 2016); https://doi.org/10.1117/12.2217228

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