scholarly journals Ablative Outcomes of Various Energy Modes for No-Touch and Peripheral Tumor-Puncturing Radiofrequency Ablation: An Ex Vivo Simulation Study

2022 ◽  
Vol 23 ◽  
Author(s):  
Dong Ik Cha ◽  
Min Woo Lee ◽  
Kyoung Doo Song ◽  
Seong Eun Ko ◽  
Hyunchul Rhim
Keyword(s):  
Radiofrequency Ablation ◽  
Simulation Study ◽  
Ex Vivo

scholarly journals Optical signatures of radiofrequency ablation in biological tissues

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pranav Lanka ◽  
Kalloor Joseph Francis ◽  
Hindrik Kruit ◽  
Andrea Farina ◽  
Rinaldo Cubeddu ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Treatment Time ◽  
Ex Vivo ◽  
Biological Tissues ◽  
Tissue Response ◽  
Optical Monitoring ◽  
Diffuse Optical Spectroscopy ◽  
Spectral Changes ◽  
Scattering Spectra ◽  
Optical Behavior

AbstractAccurate monitoring of treatment is crucial in minimally-invasive radiofrequency ablation in oncology and cardiovascular disease. We investigated alterations in optical properties of ex-vivo bovine tissues of the liver, heart, muscle, and brain, undergoing the treatment. Time-domain diffuse optical spectroscopy was used, which enabled us to disentangle and quantify absorption and reduced scattering spectra. In addition to the well-known global (1) decrease in absorption, and (2) increase in reduced scattering, we uncovered new features based on sensitive detection of spectral changes. These absorption spectrum features are: (3) emergence of a peak around 840 nm, (4) redshift of the 760 nm deoxyhemoglobin peak, and (5) blueshift of the 970 nm water peak. Treatment temperatures above 100 °C led to (6) increased absorption at shorter wavelengths, and (7) further decrease in reduced scattering. This optical behavior provides new insights into tissue response to thermal treatment and sets the stage for optical monitoring of radiofrequency ablation.

Hyperspectral image-based analysis of thermal damage for ex-vivo bovine liver utilizing radiofrequency ablation

2021 ◽  
pp. 101564
Author(s):  
Mohamed Hisham Aref ◽  
Ibrahim H. Aboughaleb ◽  
Abou-Bakr M. Youssef ◽  
Yasser H. El-Sharkawy
Keyword(s):  
Radiofrequency Ablation ◽  
Thermal Damage ◽  
Hyperspectral Image ◽  
Ex Vivo ◽  
Bovine Liver

scholarly journals Fiber optic dual EFPI/FBG for radiofrequency ablation monitoring in liver: ex-vivo experiments

2014 ◽  
Author(s):  
Daniele Tosi ◽  
Edoardo Gino Macchi ◽  
Giovanni Braschi ◽  
Mario Gallati ◽  
Alfredo Cigada ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Fiber Optic ◽  
Ex Vivo

scholarly journals Phase Contrast Imaging Based Microbubble Monitoring of Radiofrequency Ablation: An ex vivo Study

2020 ◽  
Vol 10 ◽  
Author(s):  
Wei Huang ◽  
Jian Lu ◽  
Rongbiao Tang ◽  
Zhiyuan Wu ◽  
Qingbing Wang ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Phase Contrast ◽  
Ex Vivo ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
Ex Vivo Study

Novel balloon catheter‐based endobiliary radiofrequency ablation system: Ex‐vivo experimental study

2020 ◽  
Vol 32 (6) ◽  
pp. 974-978 ◽  
Author(s):  
Tadahisa Inoue ◽  
Kiyoaki Ito ◽  
Masashi Yoneda
Keyword(s):  
Experimental Study ◽  
Radiofrequency Ablation ◽  
Ex Vivo ◽  
Balloon Catheter

Effect of warming and infusion of red blood cell concentrates on markers of haemolysis: An ex vivo simulation study

2020 ◽  
Author(s):  
Maria Paula Oliveira Pires ◽  
Maria Angélica Sorgini Peterlini ◽  
Amanda J. Ullman ◽  
Andrew C. Bulmer ◽  
Claire M. Rickard ◽  
...  
Keyword(s):  
Blood Cell ◽  
Simulation Study ◽  
Red Blood Cell ◽  
Ex Vivo

scholarly journals Optimization and characterization of a novel internally-cooled radiofrequency ablation system with optimized pulsing algorithm in an ex-vivo bovine liver

2019 ◽  
Vol 36 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Eliel Ben-David ◽  
Isaac Nissenbaum ◽  
Svetlana Gurevich ◽  
Eric R. Cosman ◽  
S. Nahum Goldberg
Keyword(s):  
Radiofrequency Ablation ◽  
Ex Vivo ◽  
Bovine Liver ◽  
Internally Cooled

scholarly journals Fiber-optic chirped FBG for distributed thermal monitoring of ex-vivo radiofrequency ablation of liver

2014 ◽  
Vol 5 (6) ◽  
pp. 1799 ◽  
Author(s):  
Daniele Tosi ◽  
Edoardo Gino Macchi ◽  
Mario Gallati ◽  
Giovanni Braschi ◽  
Alfredo Cigada ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Fiber Optic ◽  
Ex Vivo ◽  
Thermal Monitoring
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