Clinical evaluation of Synthetic Aperture Sequential Beamforming and Tissue Harmonic Imaging
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
This study determines if the data reduction achieved by the combination Synthetic Aperture Sequential Beamforming (SASB) and Tissue Harmonic Imaging (THI) affects image quality. SASB-THI was evaluated against the combination of Dynamic Received Focusing and Tissue Harmonic Imaging (DRF-THI). A BK medical UltraView 800 ultrasound scanner equipped with a research interface and an abdominal 3.5 MHz 3.5CL192-3ML convex array transducer was used and connected to a stand alone PC. SASB-THI and DRF-THI scan sequences were recorded interleaved and processed offline. Nineteen patients diagnosed with focal liver pathology were scanned to set a clinical condition, where ultrasonography is often performed. A total of 114 sequences were recorded and evaluated by five radiologists. The evaluators were blinded to the imaging technique, and each sequence was shown twice with different left-right positioning, resulting in 1140 evaluations. The program Image Quality Assessment Program (IQap) and a Visual Analog Scale (VAS) were applied for the evaluation. The scale ranged from -50 to 50, where positive values favored SASB-THI. SASB-THI and DRF-THI were evaluated alike in 49% of the evaluations, 28% favored SASB-THI and 23% favored DRF-THI. The average rating was 0.70 (Cl: -0.80 to 2.19). The statistical analysis, where the hypothesis of no differences between the techniques was tested, yielded a p-value of p=0.64, indicating no preference to any technique. This study demonstrates that SASB-THI and DRF-THI have equally good image quality although a data reduction of 64 times is achieved with SASB-THI.
Original language | English |
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Title of host publication | IEEE International Ultrasonics Symposium, IUS |
Number of pages | 4 |
Publisher | IEEE Computer Society Press |
Publication date | 20 Oct 2014 |
Pages | 1312-1315 |
Article number | 6931774 |
ISBN (Electronic) | 9781479970490 |
DOIs | |
Publication status | Published - 20 Oct 2014 |
Event | 2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States Duration: 3 Sep 2014 → 6 Sep 2014 |
Conference
Conference | 2014 IEEE International Ultrasonics Symposium, IUS 2014 |
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Land | United States |
By | Chicago |
Periode | 03/09/2014 → 06/09/2014 |
Series | IEEE International Ultrasonics Symposium, IUS |
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ISSN | 1948-5719 |
- Comparison of techniques, Imagine quality evaluation, Synthetic Aperture Sequential Beamforming Tissue Harmonic Imaging
Research areas
ID: 239625772