Defining the medial-lateral axis of an anatomical femur coordinate system using freehand 3D ultrasound imaging

2016 ◽  
Vol 45 ◽  
pp. 211-216 ◽  
Author(s):  
Elyse Passmore ◽  
Morgan Sangeux
Keyword(s):  
Coordinate System ◽  
Ultrasound Imaging ◽  
3D Ultrasound ◽  
Lateral Axis ◽  
Freehand 3D Ultrasound

Freehand 3D Ultrasound Calibration Based on Two-Layer Z-Fiducial Phantom

2011 ◽  
Vol 317-319 ◽  
pp. 638-642
Author(s):  
Xiao Yu Wang ◽  
Dong Mei Wu ◽  
Zhi Jiang Du
Keyword(s):  
Coordinate System ◽  
Least Squares ◽  
3D Ultrasound ◽  
Transformation Matrix ◽  
Position Sensor ◽  
Least Squares Fitting ◽  
Fitting Algorithm ◽  
Precision And Accuracy ◽  
Spatial Calibration ◽  
Freehand 3D Ultrasound

Spatial calibration is a key technique in Freehand 3D Ultrasound. In this article, a two-layer Z-fiducial phantom with one “Z” shaped fiducial in each layer is used to perform spatial calibration. After freehand scanning above the phantom, the intersections of the scan plane and Z-fiducial plane in B-scans are segmented, and the calibration transformation matrix between the coordinate system of the position sensor receiver and B-scan is calculated using the least-squares fitting algorithm. At last, the calibration result is evaluated on two criteria: precision and accuracy. The result shows that our phantom is convenient as well as reliable for freehand spatial calibration.

A novel Bayesian-based nonlocal reconstruction method for freehand 3D ultrasound imaging

2015 ◽  
Vol 168 ◽  
pp. 104-118 ◽  
Author(s):  
Tiexiang Wen ◽  
Feng Yang ◽  
Jia Gu ◽  
Lei Wang
Keyword(s):  
Ultrasound Imaging ◽  
3D Ultrasound ◽  
Reconstruction Method ◽  
Freehand 3D Ultrasound

Variational approach to reconstruct surface from sparse and nonparallel contours in freehand 3D ultrasound imaging

2012 ◽  
Author(s):  
Shuangcheng Deng ◽  
Lipei Jiang ◽  
Yingyu Cao ◽  
Junwen Zhang ◽  
Haiyang Zheng
Keyword(s):  
Ultrasound Imaging ◽  
Variational Approach ◽  
3D Ultrasound ◽  
Freehand 3D Ultrasound
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