Although radiotherapy techniques are the primary treatment for head and neck cancer (HNC), they still associated with substantial toxicity, side effect. Machine learning (ML) based radiomics models predicting toxicity mostly rely on features extracted from pre-treatment imaging data. This study aims to compare different in radiation-induced xerostomia sticky saliva both early late stage of HNC patients using CT MRI image along demographics dosimetric information.

Materials Methods:...

Abstract Purpose Cardiotoxicity is one of the major concerns in breast cancer treatment, significantly affecting patient outcomes. To improve likelihood favorable outcomes for survivors, it essential to carefully balance potential advantages treatment methods with risks harm healthy tissues, including heart. There currently a lack comprehensive, data‐driven evidence on effective risk stratification strategies. The aim this study investigate prediction cardiotoxicity using machine learning...

Abstract Background Variations in medical images specific to individual scanners restrict the use of radiomics both clinical practice and research. To create reproducible generalizable radiomics‐based models for outcome prediction assessment, data harmonization is essential. Purpose This study aims investigate impact performance machine learning‐based model toward radiotherapy‐induced toxicity (early late sticky saliva xerostomia) head neck cancer (HNC) patients after radiation therapy using...

There are different side effects in radiotherapy of head and neck cancer (HNC) including xerostomia. The present study utilizes the addition [Formula: see text] text]-weighted Magnetic Resonance (MR) radiomic image features to typical Computed Tomography (CT)-based radiation dose-based characteristics incorporates evaluation validation individual ensemble classifiers for prediction early-onset xerostomia HNC. A total 80 patients diagnosed with HNC were evaluated prospectively. dataset was...

Multiple Sclerosis (MS) is the most common non-traumatic disabling disease in young people. The prediction active plaque has potential to offer new biomarkers for assessing activity of MS disease. Consequently it supports patient management clinical setting and trials. This study aims investigate predictive capability radiomics features identifying plaques these patients using T2 FLAIR (Fluid Attenuated Inversion Recovery) images. For this purpose, a dataset images from 82 with 122 lesions...

Abstract There are different side effects in radiotherapy of head and neck cancer (HNC) including xerostomia. The present study utilizes the addition Magnetic Resonance (MR) radiomic image features to typical Computed Tomography (CT)-based radiation dose-based characteristics incorporates evaluation validation individual ensemble classifiers for prediction early-onset xerostomia HNC. A total 80 patients diagnosed with HNC were evaluated prospectively. MR CT imaging, dosimetric, demographic...

X-irradiation of blood products is an alternative for gamma-ray to prevent post-transfusion GvHD. However, commercial X-irradiators are not widely available while little known about their safety and efficacy platelet products. This study introduces efficient, accessible cost-effective "X irradiation system" concentrates (PCs). By constructing a suitable radiation box (phantom) clinically linear accelerator, was designed specifically PCs. PCs were divided into three equal bags either exposed...

Undesired neutron contamination imposed to patients during treatment is among the main factors increasing risk of secondary cancer in radiotherapy. This additional undesirable dose due production high-energy accelerators. In this study, investigated presence wedge and block 15 MV photon fields Siemens Primus linear accelerator.Neutron by 30°, 45°, 60° wedges cerrobend was investigated. Measurements were conducted a 10 cm × field at source -surface distance 100 0.5, 2, 3, 4 depths 30 Perspex...

Interstitial rotating shield brachytherapy (I-RSBT) is a recently developed method for treatment of prostate cancer. In the present study TG-43 dosimetric parameters 153Gd source were obtained use in I-RSBT.A located inside needle including Pt and an aluminum window was simulated using MCNPX Monte Carlo code. Dosimetric this model, air kerma strength, dose rate constant, radial function 2D anisotropy function, with without shields calculated according to report.The strength found be 6.71 U...

Materials with high atomic numbers are part of the composition dental implant systems. In radiotherapy oral cavity cancers, an can cause dose perturbations that affect target definition, calculation, and distribution. consequence, this may result in poor tumor control higher complications. study, we evaluated homogeneity when a replaced normal tooth. We also aimed to evaluate concordance calculations measurements. 2 sets planning CT scans phantom tooth same by Z1 TBR system were used. The...

Abstract Objective: The main purpose of this study is to calculate the effective source surface distance (SSD eff ) small and large electron fields in 10, 15, 18 MeV energies, investigate effect SSD on cutout factor for beams a linear accelerator. accuracy different dosimeters also evaluated. Materials methods: In current study, Elekta Precise accelerator was used beam energies MeV. measurements were performed PTW water phantom (model MP3-M). A Semiflex Advanced Markus ionization chambers...

Abstract A homemade personalized penis holder can provide the reproducibility of during urethra carcinoma (UC) radiotherapy.

Abstract Background: Normalized glandular dose (DgN) is an important dosimetric quantity in mammography. Aim: In this study, the effect of presence breast cysts and their size, number location on DgN evaluated. Materials methods: The was examined using MCNPX code. This performed by taking homogeneous phantoms containing spheroid into account. radius cysts, numbers depth were variable. Various electron energies also considered. Finally, these results compared with a cyst-less phantom....