Abstract
Explososcan is the 'gold standard' for real-time 3D medical ultrasound imaging. In this paper, 3D synthetic
aperture imaging is compared to Explososcan by simulation of 3D point spread functions. The simulations mimic
a 32x32 element prototype transducer. The transducer mimicked is a dense matrix phased array with a pitch of
300 μm, made by Vermon. For both imaging techniques, 289 emissions are used to image a volume spanning 60
in both the azimuth and elevation direction and 150mm in depth. This results for both techniques in a frame
rate of 18 Hz. The implemented synthetic aperture technique reduces the number of transmit channels from 1024
to 256, compared to Explososcan. In terms of FWHM performance, was Explososcan and synthetic aperture
found to perform similar. At 90mm depth is Explososcan's FWHM performance 7% better than that of synthetic
aperture. Synthetic aperture improved the cystic resolution, which expresses the ability to detect anechoic cysts
in a uniform scattering media, at all depths except at Explososcan's focus point. Synthetic aperture reduced the
cyst radius, R20dB, at 90mm depth by 48%. Synthetic aperture imaging was shown to reduce the number of
transmit channels by four and still, generally, improve the imaging quality.
Original language | English |
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Title of host publication | Proceedings of SPIE |
Volume | 8320 |
Publisher | SPIE - International Society for Optical Engineering |
Publication date | 2012 |
Pages | 83200F-9 |
DOIs | |
Publication status | Published - 2012 |
Event | SPIE Medical Imaging 2012 - San Diego, United States Duration: 4 Feb 2012 → 9 Feb 2012 |
Conference
Conference | SPIE Medical Imaging 2012 |
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Country/Territory | United States |
City | San Diego |
Period | 04/02/2012 → 09/02/2012 |
Keywords
- Explososcan
- Synthetic aperture
- Three-dimensional imaging
- Medical ultrasound