TY - JOUR
T1 - Indicator of small calcification detection in ultrasonography using decorrelation of forward scattered waves
AU - Taki, Hirofumi
AU - Sakamoto, Takuya
AU - Yamakawa, Makoto
AU - Shiina, Tsuyoshi
AU - Sato, Toru
PY - 2010/11
Y1 - 2010/11
N2 - For the improvement of the ability in detecting small calcifications using Ultrasonography (US) we propose a novel indicator of calcifications in an ultrasound B-mode image without decrease in frame rate. Since the waveform of an ultrasound pulse changes at a calcification position, the decorrelation of adjacent scan lines occurs behind a calcification. Therefore, we employ the decorrelation of adjacent scan lines as an indicator of a calcification. The proposed indicator depicted wires 0.05 mm in diameter at 2 cm depth with a sensitivity of 86.7% and a specificity of 100%, which were hardly detected in ultrasound B-mode images. This study shows the potential of the proposed indicator to approximate the detectable calcification size using an US device to that of an X-ray imager, implying the possibility that an US device will become a convenient, safe, and principal clinical tool for the screening of breast cancer.
AB - For the improvement of the ability in detecting small calcifications using Ultrasonography (US) we propose a novel indicator of calcifications in an ultrasound B-mode image without decrease in frame rate. Since the waveform of an ultrasound pulse changes at a calcification position, the decorrelation of adjacent scan lines occurs behind a calcification. Therefore, we employ the decorrelation of adjacent scan lines as an indicator of a calcification. The proposed indicator depicted wires 0.05 mm in diameter at 2 cm depth with a sensitivity of 86.7% and a specificity of 100%, which were hardly detected in ultrasound B-mode images. This study shows the potential of the proposed indicator to approximate the detectable calcification size using an US device to that of an X-ray imager, implying the possibility that an US device will become a convenient, safe, and principal clinical tool for the screening of breast cancer.
KW - Calcification
KW - Decorrelation
KW - Forward scattered wave
KW - Ultrasonography
UR - http://www.scopus.com/inward/record.url?scp=78651556652&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78651556652&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:78651556652
VL - 71
SP - 556
EP - 560
JO - World Academy of Science, Engineering and Technology
JF - World Academy of Science, Engineering and Technology
SN - 2010-376X
ER -