Divya Rao

Ms. Divya Rao


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 March 2022 in Biomedical Engineering Letters
Verified
Journal Article
Open access
PDF file
DRDivya Rao
Divya Rao
PKPrakashini K
Prakashini K
RSRohit Singh
Rohit Singh
VJVijayananda J
Vijayananda J
The larynx, or the voice-box, is a common site of occurrence of Head and Neck cancers. Yet, automated segmentation of the larynx has been receiving very little attention. Segmentation of organs is an essential step in cancer treatment-planning. Computed Tomography scans are routinely used to assess the extent of tumor spread in the Head and Neck as they are fast to acquire and tolerant to some movement.This paper reviews various automated detection and segmentation methods used for the larynx on Computed Tomography images. Image registration and deep learning approaches to segmenting the laryngeal anatomy are compared, highlighting their strengths and shortcomings. A list of available annotated laryngeal computed tomography datasets is compiled for encouraging further research. Commercial software currently available for larynx contouring are briefed in our work.We conclude that the lack of standardisation on larynx boundaries and the complexity of the relatively small structure makes automated segmentation of the larynx on computed tomography images a challenge. Reliable computer aided intervention in the contouring and segmentation process will help clinicians easily verify their findings and look for oversight in diagnosis. This review is useful for research that works with artificial intelligence in Head and Neck cancer, specifically that deals with the segmentation of laryngeal anatomy.

3 July 2024 in IEEE Access
Verified
Journal Article
Open access
SKSudiksha Kottachery Kamath
Sudiksha Kottachery Kamath
SPSanjeev Kushal Pendekanti
Sanjeev Kushal Pendekanti
DRDivya Rao
Divya Rao
Liver cirrhosis, a progressive and irreversible condition characterized by the replacement of healthy liver tissue with scar tissue, presents a persistent challenge in healthcare. Leveraging a comprehensive dataset of 424 patients, including controlled trial data from 312 patients and real-world follow-up information from an additional 112 patients sourced from the Mayo Clinic trial on primary biliary cirrhosis, this study refines patient demographics and integrates biomarkers for a detailed analysis. Our paper introduces LivMarX, a novel model that utilises advanced machine learning algorithms within an interdisciplinary framework and strives to stage Liver Cirrhosis using biomarkers instead of images. Our study employs meticulous feature engineering techniques, the creation of synthetic variables and categorizations to unveil critical relationships between patient characteristics and disease stages. To further refine performance, hyperparameter optimization is implemented, combining Genetic Algorithm, Optuna, and GridSearchCV. The Random Forest Classifier in LivMarX outperformed other models with an accuracy of 84.33%, and post-optimization, an accuracy improvement of 86%. LivMarX demonstrates an AUC of 0.95, showing that it provides reliable staging of liver cirrhosis. By relying on common blood tests instead of expensive imaging, this offers a cost-effective and comfortable approach to Liver Cirrhosis diagnosis. This study positions LivMarX as a potential model for accurately classifying Liver Cirrhosis stages, particularly in areas with limited access to complex imaging equipment.

1 June 2024 in APL Bioengineering
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Journal Article
Open access
PDF file
SPSameena Begum Pathan
Sameena Begum Pathan
Tanweer AliTanweer Ali
Tanweer Ali
SGSudheesh P G
Sudheesh P G
VPVasanth Kumar P
Vasanth Kumar P
DRDivya Rao
Divya Rao
Lung cancer, the treacherous malignancy affecting the respiratory system of a human body, has a devastating impact on the health and well-being of an individual. Due to the lack of automated and noninvasive diagnostic tools, healthcare professionals look forward toward biopsy as a gold standard for diagnosis. However, biopsy could be traumatizing and expensive process. Additionally, the limited availability of dataset and inaccuracy in diagnosis is a major drawback experienced by researchers. The objective of the proposed research is to develop an automated diagnostic tool for screening of lung cancer using optimized hyperparameters such that convolutional neural network (CNN) model generalizes well for universally obtained computerized tomography (CT) slices of lung pathologies. The aforementioned objective is achieved in the following ways: (i) Initially, a preprocessing methodology specific to lung CT scans is formulated to avoid the loss of information due to random image smoothing, and (ii) a sine cosine algorithm optimization algorithm (SCA) is integrated in the CNN model, to optimally select the tuning parameters of CNN. The error rate is used as an objective function, and the SCA algorithm tries to minimize. The proposed method successfully achieved an average classification accuracy of 99% in classification of lung scans in normal, benign, and malignant classes. Further, the generalization ability of the proposed model is tested on unseen dataset, thereby achieving promising results. The quantitative results prove the efficacy of the system to be used by radiologists in a clinical scenario.

26 April 2023 in Indian Journal of Otolaryngology and Head & Neck Surgery
Verified
Journal Article
Closed access
PDF file
DRDivya Rao
Divya Rao

9 January 2024 in IEEE Access
Verified
Journal Article
Open access
DRDivya Rao
Divya Rao
RSRohit Singh
Rohit Singh
SKSudiksha Kottachery Kamath
Sudiksha Kottachery Kamath
SPSanjeev Kushal Pendekanti
Sanjeev Kushal Pendekanti
DPDivya Pai
Divya Pai
SPSameena Begum Pathan
Sameena Begum Pathan
Otoscopy is a diagnostic procedure to visualize the external ear canal and eardrum, facilitating the detection of various ear pathologies and conditions. Timely otoscopy image classification offers significant advantages, including early detection, reduced patient anxiety, and personalized treatment plans. This paper introduces a novel OTONet framework specifically tailored for otoscopy image classification. It leverages octave 3D convolution and a combination of feature and region-focus modules to create an accurate and robust classification system capable of distinguishing between various otoscopic conditions. This architecture is designed to efficiently capture and process the spatial and feature information present in otoscopy images. Using a public otoscopy dataset, OTONet has reached a classification accuracy of 99.3% and an F1 score of 99.4% across 11 classes of ear conditions. A comparative analysis demonstrates that OTONet surpasses other established machine learning models, including ResNet50, ResNet50v2, VGG16, Dense-Net169, and ConvNeXtTiny, across various evaluation metrics. The research’s contribution to improved diagnostic accuracy reduced human error, expedited diagnostics, and its potential for telemedicine applications.