Publications by authors named "R Paydar"

Article Synopsis
  • This study explored how well machine learning models using mpMRI radiomic features can classify Gleason grade groups (GG) in prostate cancer.
  • It involved analyzing data from 203 patients who had pre-biopsy mpMRI scans, using various feature selection methods and machine learning classifiers to assess model performance.
  • The best-performing model achieved impressive accuracy and sensitivity (97.0% and 98.0% respectively) for classifying prostate cancer into five GG categories, demonstrating the effectiveness of this non-invasive approach.
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Background: Treatment of locally advanced rectal cancer (LARC) involves neoadjuvant chemoradiotherapy (nCRT), followed by total mesorectal excision. Examining the response to treatment is one of the most important factors in the follow-up of patients; therefore, in this study, radiomics patterns derived from pretreatment computed tomography images in rectal cancer and its relationship with treatment response measurement criteria have been investigated.

Methods: Fifty patients with rectal adenocarcinoma who were candidates for nCRT and surgery were included.

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Introduction: The lung is a moderately radio-sensitive organ. When cells are damaged due to accidental radiation exposure or treatment, they release molecules that lead to the recruitment of immune cells, accumulating inflammatory cytokines at the site of damage. Apigenin (Api) is a natural flavonoid known for its anti-inflammatory properties.

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Aim: The purpose of this study was to set four NTCP models on clinical data and develop a model that calculates the possibility of hearing damage due to irradiation of healthy and at-risk brainstem tissue.

Materials And Methods: ABR tests were performed on 50 head-and-neck cancer patients three years after radiotherapy for evaluation of lesions in a part of the auditory nerve or the auditory pathway in the brainstem.

Results: It indicated a significant difference in the latency of the waves assessed by the ABR test between the two groups.

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Purpose: To establish the early prediction models of radiation-induced oral mucositis (RIOM) based on baseline CT-based radiomic features (RFs), dosimetric data, and clinical features by machine learning models for head and neck cancer (HNC) patients.

Methods: In this single-center prospective study, 49 HNCs treated with curative intensity modulated radiotherapy (IMRT) were enrolled. Baseline CT images ( CT simulation), dosimetric, and clinical features were collected.

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