Title :
Glasses for 3D ultrasound computer tomography
Author :
Zapf, Michael ; Ruiter, Nicole V.
Author_Institution :
Inst. for Data Process. & Electron., Karlsruhe Inst. of Technol., Karlsruhe, Germany
Abstract :
A promising candidate for breast cancer imaging is ultrasound computer tomography (USCT). At KIT a 3D USCT with a semi-ellipsoidal aperture consisting of several hundreds of US transducers was built. Spherical waves are sequentially emitted and received. 3D SAFT is applied to reconstruct reflectivity volumes. However, straight forward SAFT imaging leads to blurred images. A post-imaging de-blurring approach applying aperture characteristics is described here and analyzed with a simulation and a clinical data set. A increase of 26% in the mean resolution in imaging simulation with a point scatters was achieved. A increase in resolution with breast images was observed, too.
Keywords :
biomedical transducers; biomedical ultrasonics; cancer; computerised tomography; glass; image reconstruction; image resolution; image restoration; mammography; medical image processing; ultrasonic imaging; ultrasonic transducers; 3D ultrasound computer tomography; SiO2; blurred images; breast cancer imaging; clinical data set; glasses; imaging simulation; mean resolution; point scatters; post-imaging deblurring approach; reflectivity volume reconstruction; semiellipsoidal aperture; sequentially emitted spherical waves; sequentially received spherical waves; ultrasound transducers; Apertures; Image resolution; Imaging; Reflectivity; Three-dimensional displays; Transducers; Ultrasonic imaging; fourier optics; reflectivity imaging; synthetic aperture focussing; ultrasound computer tomography; ultrasound imaging;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0213
