Abdominal parametric perfusion imaging with respiratory motion-compensation based on contrast-enhanced ultrasound: In-vivo validation

2018 ◽  
Vol 65 ◽  
pp. 11-21 ◽  
Author(s):  
Diya Wang ◽  
Mengnan Xiao ◽  
Yu Zhang ◽  
Mingxi Wan
Keyword(s):  
Perfusion Imaging ◽  
Motion Compensation ◽  
Respiratory Motion ◽  
Contrast Enhanced Ultrasound ◽  
Respiratory Motion Compensation ◽  
Contrast Enhanced ◽  
In Vivo Validation

scholarly journals Automatically steering cardiac catheters in vivo with respiratory motion compensation

2020 ◽  
Vol 39 (5) ◽  
pp. 586-597 ◽  
Author(s):  
Paul M Loschak ◽  
Alperen Degirmenci ◽  
Cory M Tschabrunn ◽  
Elad Anter ◽  
Robert D Howe
Keyword(s):  
Motion Compensation ◽  
Respiratory Motion ◽  
Mean Absolute Error ◽  
Absolute Error ◽  
Respiratory Motion Compensation ◽  
X Ray ◽  
Cardiac Catheters ◽  
The Us ◽  
Predictive Filtering

A robotic system for automatically navigating ultrasound (US) imaging catheters can provide real-time intra-cardiac imaging for diagnosis and treatment while reducing the need for clinicians to perform manual catheter steering. Clinical deployment of such a system requires accurate navigation despite the presence of disturbances including cyclical physiological motions (e.g., respiration). In this work, we report results from in vivo trials of automatic target tracking using our system, which is the first to navigate cardiac catheters with respiratory motion compensation. The effects of respiratory disturbances on the US catheter are modeled and then applied to four-degree-of-freedom steering kinematics with predictive filtering. This enables the system to accurately steer the US catheter and aim the US imager at a target despite respiratory motion disturbance. In vivo animal respiratory motion compensation results demonstrate automatic US catheter steering to image a target ablation catheter with 1.05 mm and 1.33° mean absolute error. Robotic US catheter steering with motion compensation can improve cardiac catheterization techniques while reducing clinician effort and X-ray exposure.

scholarly journals Whole‐heart T 1 mapping using a 2D fat image navigator for respiratory motion compensation

2019 ◽  
Vol 83 (1) ◽  
pp. 178-187 ◽  
Author(s):  
Giovanna Nordio ◽  
Torben Schneider ◽  
Gastao Cruz ◽  
Teresa Correia ◽  
Aurelien Bustin ◽  
...  
Keyword(s):  
Motion Compensation ◽  
Respiratory Motion ◽  
Respiratory Motion Compensation ◽  
Whole Heart

The role of quantitation of real-time 3-dimensional contrast-enhanced ultrasound in detecting microvascular invasion: an in vivo study

2016 ◽  
Vol 41 (10) ◽  
pp. 1973-1979 ◽  
Author(s):  
Zhu Wang ◽  
Wei Wang ◽  
Guang-Jian Liu ◽  
Zheng Yang ◽  
Li-Da Chen ◽  
...  
Keyword(s):  
Real Time ◽  
Microvascular Invasion ◽  
In Vivo Study ◽  
Contrast Enhanced Ultrasound ◽  
3 Dimensional ◽  
Contrast Enhanced
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