Publications by authors named "Srinivas Challapalli"

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Dosimetric verification of HDR vaginal cylinder applications using Gafchromic film and Monte Carlo simulation with a custom phantom.
Mahesha Jayakody, Jeyasingam Jeyasugiththan, M S Athiyamaan, Sourjya Banerjee, Lobo Dilson, Srinivas Challapalli

Appl Radiat Isot· December 2025

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Longitudinal Assessment of Neurocognitive Outcomes and Correlation with Limbic System Radiation Doses in Patients Undergoing Radiotherapy for Central Nervous System Tumours: A preliminary report.
Prerana Baruah, Athiyamaan Ms, Sourjya Banerjee, Johan Sunny, Paul Simon, Challapalli Srinivas

F1000Res· December 2025

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Clinical correlation of p16 expression with lymphatic invasion and epithelial-mesenchymal transition (EMT) in oropharyngeal carcinomas.
Vaishak Jawahar, Saraswathy Sreeram, Jyoti Kini, Sourjya Banerjee, Athiyamaan M S, Challapalli Srinivas

F1000Res· October 2025

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Pre-treatment blood parameters as an economical predictive marker for predicting treatment response in locally advanced cervical cancer.
Abhishek Krishna, Vishnumaya N, Fathima Shada, Pooja Ms, Dilson Lobo, Challapalli Srinivas

F1000Res· April 2025

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Estimation of surface doses in the presence of an air gap under a bolus for a 6 MV clinical photon beam - a phantom study.
Dilson Lobo, Challapalli Srinivas, Sourjya Banerjee, M S Athiyamaan, K Johan Sunny

Radiat Environ Biophys· March 2025

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Decoding the influence of external beam radiotherapy to brachytherapy duration and overall treatment on response and early recurrences in cervical cancer patients treated with chemoradiation.
Abhishek Krishna, Bharat Sai Makkapatti, M S Athiyamaan, Dilson Lobo, Challapalli Srinivas

Radiat Oncol J· December 2024

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Clinical and dosimetric correlation in terms of treatment response, bladder and rectal toxicities in cervical cancer patients treated with cobalt 60 high dose rate brachytherapy.
Bharat Sai Makkapati, Srinivas Challapalli, Athiyamaan MariappanSenthiappan, Johan Sunny Kilikunnel, Abhishek Krishna

PeerJ· August 2024

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Geographic and demographic distribution and access to brachytherapy in India with its implications on cancer care.
Abhishek Krishna, Athiyamaan Ms, Challapalli Srinivas, Sourjya Banerjee, Johan Sunny

Brachytherapy· November 2023

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Efficacy and safety of EGFR inhibitor gefitinib in recurrent or metastatic cervical cancer: a preliminary report.
Abhishek Krishna, M Sathya, S Mukesh, M S Athiyamaan, Sourjya Banerjee, Challapalli Srinivas

Med Oncol· June 2023

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Dosimetric Study to Estimate Deviations in Delivered Radiation Dose due to Occluded Air Spaces in Vaginal Vault Brachytherapy Applications.
Challapalli Srinivas, Sourjya Banerjee, Dilson Lobo, M S Athiyamaan, Ravichandran Ramamoorthy

Asian Pac J Cancer Prev· May 2023

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In-vivo Comparison of Planned and Measured Rectal Doses during Cobalt-60 HDR CT-based Intracavitary Brachytherapy Applications of Cervical Cancer Using the PTW 9112 Semiconductor Probe.
Sunny K Johan, Dilson Lobo, M S Athiyamaan, Challapalli Srinivas, Sourjya Banerjee

Asian Pac J Cancer Prev· March 2023

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Comparison of two high dose rate intracavitary brachytherapy regimens in treatment of cervical cancer: a preliminary report.
Abhishek Krishna, A G Hasib, Donald Fernandes, M S Athiyamaan, Sandesh Rao, Challapalli Srinivas

Discov Oncol· March 2023

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Estimation of Surface Dose in the Presence of Unwanted Air Gaps under the Bolus in Postmastectomy Radiation Therapy: A Phantom Dosimetric Study.
Lobo Dilson, Srinivas Challapalli, Banerjee Sourjya, M S Athiyamaan, Ravichandran Ramamoorthy

Asian Pac J Cancer Prev· September 2022

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Surface Dose Measurements in Chest Wall Postmastectomy Radiotherapy to Achieve Optimal Dose Delivery with 6 MV Photon Beam.
Dilson Lobo, Sourjya Banerjee, Challapalli Srinivas, M S Athiyamaan, Shreyas Reddy

J Med Phys· November 2021

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Fabrication and development of a thorax phantom to evaluate 3D CRT treatment planning techniques for post-mastectomy chest wall radiotherapy.
Dilson Lobo, Srinivas Challapalli, Sourjya Banerjee, Suman Kumar Putha, P U Prakash Saxena

Phys Eng Sci Med· June 2021

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Influence of Air Gap under Bolus in the Dosimetry of a Clinical 6 MV Photon Beam.
Dilson Lobo, Sourjya Banerjee, Challapalli Srinivas, Ramamoorthy Ravichandran, Suman Kumar Putha

J Med Phys· October 2020

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Clinical implementation of brass mesh bolus for chest wall postmastectomy radiotherapy and film dosimetry for surface dose estimates.
Dilson Lobo, Sourjya Banerjee, P U Saxena, Ramamoorthy Ravichandran, Challapalli Srinivas

J Cancer Res Ther· July 2020

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Simultaneous Measurement of and Transit Mid-Plane Doses with Ionization Chambers in Gynecological Malignancy Patients Undergoing Three-Dimensional Conformal Radiotherapy.
Putha Suman Kumar, Challapalli Srinivas, B M Vadhiraja, Sourjya Banerjee, R Shreyas

J Med Phys· July 2020

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dose estimations through transit signal measured with thimble chamber positioned along the central axis at electronic portal imaging device level in medical linear accelerator in carcinoma of the middle-third esophagus patients undergoing three-dimensional conformal radiotherapy.
Putha Suman Kumar, S Banerjee, E S Arun Kumar, Challapalli Srinivas, B M Vadhiraja

J Cancer Res Ther· August 2018

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Genetic Instability in Lymphocytes is Associated With Blood Plasma Antioxidant Levels in Health Care Workers Occupationally Exposed to Ionizing Radiation.
Dayanidhi Kumar, Sandhya Kumari, Sujith Raj Salian, Shubhashree Uppangala, Guruprasad Kalthur, Srinivas Challapalli

Int J Toxicol· May 2016

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On-line estimations of delivered radiation doses in three-dimensional conformal radiotherapy treatments of carcinoma uterine cervix patients in linear accelerator.
Suman Kumar Putha, P U Saxena, S Banerjee, Challapalli Srinivas, B M Vadhiraja

J Med Phys· January 2016

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Dose verification in carcinoma of uterine cervix patients undergoing 3D conformal radiotherapy with Farmer type ion chamber.
Challapalli Srinivas, P Suman Kumar, Ramamoorthy Ravichandran, S Banerjee, P U Saxena

J Med Phys· October 2014

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Association between sperm DNA integrity and seminal plasma antioxidant levels in health workers occupationally exposed to ionizing radiation.
Dayanidhi Kumar, Sujith Raj Salian, Guruprasad Kalthur, Shubhashree Uppangala, Sandhya Kumari, Srinivas Challapalli

Environ Res· July 2014

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Semen abnormalities, sperm DNA damage and global hypermethylation in health workers occupationally exposed to ionizing radiation.
Dayanidhi Kumar, Sujith Raj Salian, Guruprasad Kalthur, Shubhashree Uppangala, Sandhya Kumari, Srinivas Challapalli

PLoS One· March 2014

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