Radio-frequency ablation monitoring through real-time, video-rate all-optical ultrasound imaging (Conference Presentation)

2019 ◽  
Author(s):  
Erwin J. Alles ◽  
Richard J. Colchester ◽  
Sacha Noimark ◽  
Edward Z. Zhang ◽  
Paul C. Beard ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Real Time ◽  
Ultrasound Imaging ◽  
Radio Frequency Ablation ◽  
All Optical

scholarly journals Real-Time, Video-Rate and Depth-Resolved Imaging of Radio-Frequency Ablation Using All-Optical Ultrasound

2018 ◽  
Author(s):  
Erwin J Alles ◽  
Richard J Colchester ◽  
Yousuf Makki ◽  
Sacha Noimark ◽  
Edward Z Zhang ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Real Time ◽  
Radio Frequency Ablation ◽  
All Optical

scholarly journals Real-time all-optical ultrasound imaging of a dynamic heart valve phantom

2021 ◽  
Author(s):  
Richard J. Colchester ◽  
John T. Moore ◽  
Terry M. Peters ◽  
Malcolm C. Finlay ◽  
Adrien E. Desjardins
Keyword(s):  
Real Time ◽  
Heart Valve ◽  
Ultrasound Imaging ◽  
All Optical

scholarly journals Real-time monitoring of contrast-enhanced ultrasound for radio frequency ablation

Open Medicine ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. 474-480 ◽  
Author(s):  
Jiangwei Liu ◽  
Yan Liu ◽  
Jianzhao Huang ◽  
Lei Huang ◽  
Pengwei Zhao
Keyword(s):  
Radio Frequency ◽  
Real Time ◽  
Radio Frequency Ablation ◽  
Contrast Enhanced Ultrasound ◽  
Liver Model ◽  
Horizontal Diameter ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Swine Liver ◽  
Conventional Ultrasound

AbstractBackgroundThis study compared the realtime monitoring effects of conventional ultrasound and contrast-enhanced ultrasound (CEUS) on evaluating radio frequency ablation (RFA) in a living swine liver model.MethodologyLiver RFA was performed on 10 young swine. Conventional ultrasound and CEUS were performed immediately. After the animals were sacrificed, ablation lesions were removed to histopathologically examine the range of the lesions. Ablation completeness based on three methods were compared using histopathology as the gold standard.ResultsForty-three ablation lesions were produced in the animals. The horizontal diameter, vertical diameter and ablation lesion area based on conventional ultrasound were all significantly smaller than those based on the gross sample, but no significant differences existed between the results of the CEUS and the gross sample. Histopathology showed that 30 lesions were incompletely ablated and 13 were completely ablated, while CEUS showed that 28 lesions were incompletely ablated and 15 were completely ablated. Compared with histopathology, CEUS had an accuracy of 81.4%, a sensitivity of 83.3%, and a specificity of 76.9%. No significant difference in ablation completeness judgment between CEUS and histopathology was observed.ConclusionCEUS provides a real-time radiological foundation for evaluating RFA lesion ranges and completeness in a living swine liver model.

Fate of Great Saphenous Vein After Radio-Frequency Ablation: Detailed Ultrasound Imaging

2004 ◽  
Vol 38 (4) ◽  
pp. 339-344 ◽  
Author(s):  
Sergio X. Salles-Cunha ◽  
Hiranya Rajasinghe ◽  
Steven M. Dosick ◽  
Steven S. Gale ◽  
Andrew Seiwert ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Ultrasound Imaging ◽  
Saphenous Vein ◽  
Great Saphenous Vein ◽  
Radio Frequency Ablation

scholarly journals Integrated RFA/PSOCT catheter for real-time guidance of cardiac radio-frequency ablation

2018 ◽  
Vol 9 (12) ◽  
pp. 6400 ◽  
Author(s):  
Xiaowei Zhao ◽  
Xiaoyong Fu ◽  
Colin Blumenthal ◽  
Yves T. Wang ◽  
Michael W. Jenkins ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Real Time ◽  
Radio Frequency Ablation
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