Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30172
Indicator of Small Calcification Detection in Ultrasonography using Decorrelation of Forward Scattered Waves

Authors: Hirofumi Taki, Takuya Sakamoto, Makoto Yamakawa, Tsuyoshi Shiina, Toru Sato

Abstract:

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.

Keywords: Ultrasonography, Calcification, Decorrelation, Forward scattered wave

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1086211

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1094

References:


[1] H. ├ûzdemir, M. K. Demir, O. Temizöz, H. Genchellac, and E. Unlu, "Phase inversion harmonic imaging improves assessment of renal calculi: a comparison with fundamental gray-scale sonography," J. Clin. Ultrasound., vol. 36, pp. 16-19, 2008.
[2] K. A. B. Fowler, J. A. Locken, J. H. Duchesne, and M. R. Williamson, "US for detecting renal calculi with nonenhanced CT as a reference standard," Radiology. vol. 222, pp. 109-113, 2002.
[3] P. M. Lamb, N. M. Perry, S. J. Vinnicombe, and C. A. Wells, "Correlation between ultrasound characteristics, mammographic findings and histological grade in patients with invasive ductal carcinoma of the breast," Clin. Radiol. vol. 55, pp. 40-44, 2000.
[4] D. Jacob et al., "Analysis of the results of 137 subclinical breast lesions excisions. Value of ultrasonography in the early diagnosis of breast cancer," J. Gynecol. Obstet. Biol. Reprod., vol. 26, pp. 27-31, 1997.
[5] V. P. Jackson, H. E. Reynolds, and D. R. Hawes, "Sonography of the breast. Semin. Ultrasound CT MR," vol. 17, pp. 460-475, 1996.
[6] E. Tohno, D. O. Cosgrove, and J. P. Sloane, Ultrasound diagnosis of breast diseases, Elsevier Health Sciences, Edinburg, 1994.
[7] H. Taki, T. Sakamoto, M. Yamakawa, T. Shiina, and T. Sato, "Calculus Detection for Medical Acoustic Imaging using Cross-correlation: Simulation Study," J Med. Ultrasonics, vol. 37, pp. 129-135, 2010.
[8] H. Taki, T. Sakamoto, M. Yamakawa, T. Shiina, and T. Sato, "Small calculus detection for medical acoustic imaging using cross-correlation between echo signals," Proc. IEEE Int. Ultrason. Symp., pp. 2398-2401, 2009.
[9] H. Taki, K. Taki, T. Sakamoto, M. Yamakawa, T. Shiina, and T. Sato, "High range resolution medical acoustic vascular imaging with frequency domain interferometry," Proc. IEEE EMBS, accepted.