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A kernel smoothing algorithm for ablation visualization in ultrasound elastography
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DOI：10.1016/j.ultras.2018.12.006.png)
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Abstract
En 中文
Three-dimensional visualization of tumor ablation procedures have significant clinical value because the ability to accurately visualize ablated volumes can help clinicians gauge the extent of ablated tissue necrosis and plan future treatment steps. Better control over ablation volume can prevent recurrence of tumors treated using ablative procedures. This paper presents a kernel based smoothing algorithm called MATERNSMOOTH to reconstruct shear wave velocity maps from data acquired through ultrasound electrode vibration elastography. Shear wave velocity estimates are acquired on several intersecting imaging planes that share a common axis of intersection collinear with the ablation needle. An objective method of choosing smoothing parameters from underlying data is outlined through simulations. Experimental validation was performed on data acquired from a tissue mimicking phantom. Volume estimates were found to be within 20% of the true value.
Keywords:
Ultrasound
Elastography
Ablation monitoring
Shear wave imaging
Three-dimensional reconstruction
Electrode vibration elastography
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