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Ramjee Repaka
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Journal Articles

Microwave Ablation Trocar Operated at Dual Tine Dual-Frequency: A Numerical Analysis

Vellavalapalli Satish, Ramjee Repaka
Journal: Journal of Engineering and Science in Medical Diagnostics and Therapy
Article Type: Research-Article
ASME J of Medical Diagnostics. May 2023, 6(2): 021002.
Paper No: JESMDT-22-1028
DOI: https://doi.org/10.1115/1.4056410
Published Online: December 23, 2022
View Article titled, Microwave Ablation Trocar Operated at Dual Tine Dual-Frequency: A Numerical Analysis
Click here to open pdf in another window PDF for Microwave Ablation Trocar Operated at Dual Tine Dual-Frequency: A Numerical Analysis
Topics: Ablation (Vaporization technology), Biological tissues, Microwaves, Tumors
Journal Articles

Numerical Modeling of Conical-Shaped Bone Marrow Biopsy Needle Into Multilayer Iliac Crest Model

Rahul Nadda, Ramjee Repaka, Ashish Kumar Sahani
Journal: Journal of Engineering and Science in Medical Diagnostics and Therapy
Article Type: Research-Article
ASME J of Medical Diagnostics. February 2023, 6(1): 011001.
Paper No: JESMDT-22-1021
DOI: https://doi.org/10.1115/1.4055221
Published Online: September 8, 2022
View Article titled, Numerical Modeling of Conical-Shaped Bone Marrow Biopsy Needle Into Multilayer Iliac Crest Model
Click here to open pdf in another window PDF for Numerical Modeling of Conical-Shaped Bone Marrow Biopsy Needle Into Multilayer Iliac Crest Model
Topics: Bone, Needles, Skin, Biological tissues, Stress
Proceedings Papers

Algorithm to Avoid Normal Tissue Sacrifice and Thermal Injury of Neighbouring Organs During Radiofrequency Ablation of HCC Tumours Treated Using a Multi-Tine Electrode With Separately Controlled Tines

Manoj Dhiman, Ramjee Repaka
Proc. ASME. IMECE2021, Volume 5: Biomedical and Biotechnology, V005T05A030, November 1–5, 2021
Paper No: IMECE2021-69744
DOI: https://doi.org/10.1115/IMECE2021-69744
View Paper titled, Algorithm to Avoid Normal Tissue Sacrifice and Thermal Injury of Neighbouring Organs During Radiofrequency Ablation of HCC Tumours Treated Using a Multi-Tine Electrode With Separately Controlled Tines
Click here to open pdf in another window PDF for Algorithm to Avoid Normal Tissue Sacrifice and Thermal Injury of Neighbouring Organs During Radiofrequency Ablation of HCC Tumours Treated Using a Multi-Tine Electrode With Separately Controlled Tines
Topics: Algorithms, Biological tissues, Electrodes, Radiofrequency ablation, Tumors, Wounds
Journal Articles

Numerical Investigation on the Effect of Different Physiological Cancerous Breast Parameters on the Output of Microwave Ablation

Jatin Kumar, Ramjee Repaka
Journal: Journal of Engineering and Science in Medical Diagnostics and Therapy
Article Type: Research-Article
ASME J of Medical Diagnostics. August 2020, 3(3): 031001.
Paper No: JESMDT-19-1057
DOI: https://doi.org/10.1115/1.4046183
Published Online: March 27, 2020
View Article titled, Numerical Investigation on the Effect of Different Physiological Cancerous Breast Parameters on the Output of Microwave Ablation
Click here to open pdf in another window PDF for Numerical Investigation on the Effect of Different Physiological Cancerous Breast Parameters on the Output of Microwave Ablation
Topics: Ablation (Vaporization technology), Microwaves, Tumors, Biological tissues, Simulation, Design, Physiology, Experimental design, Statistical analysis
Proceedings Papers

Analysis of Ablation Volume Produced During Microwave Ablation of Breast Cancerous Lesion Using Fourier and Non-Fourier Models

Vellavalapalli Satish, Jatin Kumar, Ramjee Repaka
Proc. ASME. IMECE2019, Volume 3: Biomedical and Biotechnology Engineering, V003T04A038, November 11–14, 2019
Paper No: IMECE2019-10800
DOI: https://doi.org/10.1115/IMECE2019-10800
View Paper titled, Analysis of Ablation Volume Produced During Microwave Ablation of Breast Cancerous Lesion Using Fourier and Non-Fourier Models
Click here to open pdf in another window PDF for Analysis of Ablation Volume Produced During Microwave Ablation of Breast Cancerous Lesion Using Fourier and Non-Fourier Models
Topics: Ablation (Vaporization technology), Microwaves, Bioheat transfer, Temperature, Computer software, Delays, Electromagnetic radiation, Heat transfer, Physics, Relaxation (Physics)
Proceedings Papers

Comparison of Ablation Volume Produced With Multi-Tine Dry Type and Wet Type Electrodes During Radio Frequency Ablation: An In Vitro Study

Sundeep Singh, Ramjee Repaka
Proc. ASME. IMECE2018, Volume 3: Biomedical and Biotechnology Engineering, V003T04A062, November 9–15, 2018
Paper No: IMECE2018-88588
DOI: https://doi.org/10.1115/IMECE2018-88588
View Paper titled, Comparison of Ablation Volume Produced With Multi-Tine Dry Type and Wet Type Electrodes During Radio Frequency Ablation: An In Vitro Study
Click here to open pdf in another window PDF for Comparison of Ablation Volume Produced With Multi-Tine Dry Type and Wet Type Electrodes During Radio Frequency Ablation: An In Vitro Study
Topics: Ablation (Vaporization technology), Electrodes, Radiofrequency ablation, Phantoms, Biological tissues, Dimensions, Generators, Soft tissues, Temperature, Temperature distribution
Journal Articles

Quantification of Thermal Injury to the Healthy Tissue Due to Imperfect Electrode Placements During Radiofrequency Ablation of Breast Tumor

Sundeep Singh, Ramjee Repaka
Journal: Journal of Engineering and Science in Medical Diagnostics and Therapy
Article Type: Research-Article
ASME J of Medical Diagnostics. February 2018, 1(1): 011002.
Paper No: JESMDT-17-2029
DOI: https://doi.org/10.1115/1.4038237
Published Online: November 7, 2017
View Article titled, Quantification of Thermal Injury to the Healthy Tissue Due to Imperfect Electrode Placements During Radiofrequency Ablation of Breast Tumor
Click here to open pdf in another window PDF for Quantification of Thermal Injury to the Healthy Tissue Due to Imperfect Electrode Placements During Radiofrequency Ablation of Breast Tumor
Topics: Ablation (Vaporization technology), Biological tissues, Damage, Electrodes, Radiofrequency ablation, Temperature, Tumors
Journal Articles

Thermal Assessment of Ablation Limit of Subsurface Tumor During Focused Ultrasound and Laser Heating

Arka Bhowmik, Ramjee Repaka, Subhash C. Mishra, Kunal Mitra
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. March 2016, 8(1): 011012.
Paper No: TSEA-14-1105
DOI: https://doi.org/10.1115/1.4030731
Published Online: November 11, 2015
View Article titled, Thermal Assessment of Ablation Limit of Subsurface Tumor During Focused Ultrasound and Laser Heating
Click here to open pdf in another window PDF for Thermal Assessment of Ablation Limit of Subsurface Tumor During Focused Ultrasound and Laser Heating
Topics: Ablation (Vaporization technology), Biological tissues, Damage, Heating, Lasers, Skin, Temperature, Tumors, Ultrasound, Pressure
Proceedings Papers

Effect of Viscous Dissipation on Forced Convection Heat Transfer in Parallel Plate Channels With Asymmetric Boundary Conditions

Ramjee Repaka, V. V. Satyamurty
Proc. ASME. IMECE2013, Volume 8C: Heat Transfer and Thermal Engineering, V08CT09A047, November 15–21, 2013
Paper No: IMECE2013-63112
DOI: https://doi.org/10.1115/IMECE2013-63112
View Paper titled, Effect of Viscous Dissipation on Forced Convection Heat Transfer in Parallel Plate Channels With Asymmetric Boundary Conditions
Click here to open pdf in another window PDF for Effect of Viscous Dissipation on Forced Convection Heat Transfer in Parallel Plate Channels With Asymmetric Boundary Conditions
Topics: Boundary-value problems, Energy dissipation, Forced convection, Wall temperature, Fluids, Plates (structures), Temperature, Flow (Dynamics), Heat conduction, Heating
Proceedings Papers

Detection of Subsurface Skin Lesion Using Frequency Modulated Thermal Wave Imaging: A Numerical Study

Arka Bhowmik, Ramjee Repaka, Subhash C. Mishra, Ravibabu Mulaveesala
Proc. ASME. IMECE2013, Volume 3A: Biomedical and Biotechnology Engineering, V03AT03A064, November 15–21, 2013
Paper No: IMECE2013-64200
DOI: https://doi.org/10.1115/IMECE2013-64200
View Paper titled, Detection of Subsurface Skin Lesion Using Frequency Modulated Thermal Wave Imaging: A Numerical Study
Click here to open pdf in another window PDF for Detection of Subsurface Skin Lesion Using Frequency Modulated Thermal Wave Imaging: A Numerical Study
Topics: Imaging, Skin, Waves, Thermography, Heat, Biomedical imaging, Feature extraction, Locks (Waterways)
Proceedings Papers

Inverse Heat Transfer Analysis of Porous Extended Surface Using Simplex Search Method

Rohit Kumar Singla, Ranjan Das, Arka Bhowmik, Ramjee Repaka
Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T04A001, December 5–6, 2013
Paper No: GTINDIA2013-3548
DOI: https://doi.org/10.1115/GTINDIA2013-3548
View Paper titled, Inverse Heat Transfer Analysis of Porous Extended Surface Using Simplex Search Method
Click here to open pdf in another window PDF for Inverse Heat Transfer Analysis of Porous Extended Surface Using Simplex Search Method
Topics: Heat transfer, Temperature, Temperature measurement, Diffusion (Physics), Errors, Permeability, Porosity, Porous materials, Radiative heat transfer, Runge-Kutta methods