Clinical evaluation of Synthetic Aperture Sequential Beamforming and Tissue Harmonic Imaging
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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Clinical evaluation of Synthetic Aperture Sequential Beamforming and Tissue Harmonic Imaging. / Brandt, Andreas Hjelm; Hemmsen, Martin Christian; Hansen, Peter Møller; Hansen, Kristoffer Lindskov; Lange, Theis; Jensen, Jørgen Arendt; Nielsen, Michael Bachmann.
IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society Press, 2014. s. 1312-1315 6931774 (IEEE International Ultrasonics Symposium, IUS).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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TY - GEN
T1 - Clinical evaluation of Synthetic Aperture Sequential Beamforming and Tissue Harmonic Imaging
AU - Brandt, Andreas Hjelm
AU - Hemmsen, Martin Christian
AU - Hansen, Peter Møller
AU - Hansen, Kristoffer Lindskov
AU - Lange, Theis
AU - Jensen, Jørgen Arendt
AU - Nielsen, Michael Bachmann
PY - 2014/10/20
Y1 - 2014/10/20
N2 - 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.
AB - 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.
KW - Comparison of techniques
KW - Imagine quality evaluation
KW - Synthetic Aperture Sequential Beamforming Tissue Harmonic Imaging
U2 - 10.1109/ULTSYM.2014.0324
DO - 10.1109/ULTSYM.2014.0324
M3 - Article in proceedings
AN - SCOPUS:84910028228
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 1312
EP - 1315
BT - IEEE International Ultrasonics Symposium, IUS
PB - IEEE Computer Society Press
T2 - 2014 IEEE International Ultrasonics Symposium, IUS 2014
Y2 - 3 September 2014 through 6 September 2014
ER -
ID: 239625772