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一种基于GPU的声辐射力成像组织位移估计算法

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摘要 位移估计是弹性成像的第一步,它决定着整个成像的时间以及质量,目前位移估计算法有两大类:传统的归一化互相关和相位检测算法。相位检测法由于计算速度快被广泛运用,通过对相位检测算法的深入研究提出一种新的基于原始RF信号的Doppler位移估计算法,该方法只需一次积和运算以及不用构建IQ信号,大大缩短了计算时间。通过生物仿体研究证明,该方法比传统相位检测法和Doppler速度估计法更快,从性能上看,RF-Doppler法得到应变图像质量与相位检测法相似,但是速度却快了接近100倍。
作者 谭勇 王丛知
出处 《电子世界》 2014年第21期109-110,共2页 Electronics World
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参考文献6

  • 1彭博,谌勇,刘东权.基于GPU的超声弹性成像并行实现研究[J].光电工程,2013,40(5):97-105. 被引量:6
  • 2CUDA Tookit Document.NVIDIA.
  • 3RICHARD C.CABOT.A Note on the Application of the Hilbert Transform to time delay estimation[J].IEEE TRANSICTION ACOUSTICS,SPEECH,AND SIGNAL PROCESSINF,1981,29(3):607-609.
  • 4SCHWARTZ M,BENNRTT W R,STEIN S.Communicaion Systems and Techniques [M].New-Yotk:McGraw-Hill, 1965.
  • 5PESAVENTO A,PERREY C,KRUEGER M,et at.A Time- Efficient and Accurate Strain Estimation Concept for Ultrasonic Elastography Using Iterative Phase Zero Estimation[J].IEEE TRANSAXTIONS ON ULTRASONICS,FERROELECTICS, AND FREQUENCY CONTROL,1999,46(5):1057-1067.
  • 6DE C,NAMEKAWA K,KOYANO K, et al.Real-Time two- dimensionalblood flow imaging using autocorrelation techniclue[J]. IEEE TRANSACTION SONICS ULTRASON,1985,42(4):458-463.

二级参考文献21

  • 1Lindop J E, Treece G M, Gee A H, et al. 3D elastography using freehand ultrasound [J]. Ultrasound in Medicine & Biology (S0301-5629), 2006, 32(4): 529-545.
  • 2Shiina T, Nitta N, Ueno E, et al. Real time tissue elasticity imaging using combined autocorrelation method [J]. Journal of Medical Ultrasonics(S1346-4523), 1999, 26(2): 57-66.
  • 3Konofagou E E, Varghese T, Ophir J, et al. Power spectral strain estimators in elastography [J]. Ultrasound in Medicine & Biology(S0301-5629), 1999, 25(7): 1115-1129.
  • 4Rivaz H, Boctor E, Foroughi P, et al. Ultrasound elastography: A dynamic programming approach [J]. IEEE Transactions on Medical lmaging(S0278-0062), 2008, 27(10): 1373-1377.
  • 5Zahiri-Azar R, Salcudean S E. Motion estimation in ultrasound images using time domain cross correlation with prior estimates [J]. IEEE Transactions on Biomedical Engineering(S0018-9294), 2006, 53(10): 1990-2000.
  • 6Hoyt K, Forsberg F, Ophir J. Comparison of shift estimation strategies in spectral elastography [J]. Ultrasonics(S0041-624X), 2006, 44(1): 99-108.
  • 7Dai Y K, Tian J, Dong D, et al. Realtime visualized freehand 3D ultrasound reconstruction based on GPU [J]. IEEE Transactions on Information Technology in Biomedicine ($1089-7771), 2010, 14(6): 1338 -1345.
  • 8Liu D L, Ebbini E S. Real-time 2-D temperature imaging using ultrasound [J]. IEEE Transactions on Biomedical Engineering(S0018-9294), 2010, 57(1): 12-16.
  • 9Samant S, Xia J, Muyan-Ozcelik P, et aL High performance computing for deformable image registration: Towards a new paradigm in adaptive radiotherapy [J]. Medical Physics(S0094-2405), 2008, 35(8): 3546-3553.
  • 10Jia X, Lou Y, Li R, et aL GPU-based fast cone beam CT reconstruction from undersampled and noisy projection data via total variation [J]. MedicalPhysics(S0094-2405), 2010, 37(4): 1757-1760.

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