Results 21 to 30 of about 845 (126)
Dose Measurements of Parotid Glands and Spinal Cord in Conventional Treatment of Nasopharyngeal Carcinoma Using RANDO Phantom and Thermoluminescent Dosimeters [PDF]
Iranian Journal of Medical Physics, 2015 Introduction Radiotherapy is regarded as the first treatment of choice for nasopharyngeal carcinoma. Despite the advantages of radiotherapy, patients may suffer from a wide range of side-effects due to the presence of many sensitive normal tissues in ...
Mohammad Taghi Bahreyni Toossi +3 more
doaj +3 more sources
Scientific Reports, 2022 This study aimed to fabricate a heterogeneous phantom replicating the commercial Rando phantom by mixing plaster powder and polylactic acid (PLA) powder. Producing a heterogeneous phantom using Plaster and PLA is cheaper because it can be easily obtained
Sung Yeop Kim +4 more
doaj +1 more source
Marine Ecology, EarlyView., 2023 Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol +2 more
wiley +1 more source
Anatomical Information Quality Control of a Radiotherapy Treatment Planning System [PDF]
Iranian Journal of Medical Physics, 2023 Introduction: To determine radiotherapy accuracy and prevent treatment errors, quality assurance is crucial during the planning phase of radiation therapy.
Rehab Abd Elaziz +3 more
doaj +1 more source
A customized bolus produced using a 3-dimensional printer for radiotherapy. [PDF]
PLoS ONE, 2014 OBJECTIVE: Boluses are used in high-energy radiotherapy in order to overcome the skin sparing effect. In practice though, commonly used flat boluses fail to make a perfect contact with the irregular surface of the patient's skin, resulting in air gaps ...
Shin-Wook Kim +3 more
doaj +1 more source
Comparison of Radiotherapy Techniques in Breast Cancer with Inclusion of Internal Mammary Nodes through Thermoluminescent Dosimetry in a RANDO Phantom [PDF]
Iranian Journal of Medical Physics, 2021 Introduction: In various radiotherapy techniques for breast cancer, the inclusion of internal mammary nodes (IMNs) in the target volume is important for selecting the most appropriate technique.
Mohammad Taghi Bahreini Toosi +4 more
doaj +1 more source
Direct Effective Dose Calculations in Pediatric Fluoroscopy-Guided Abdominal Interventions with Rando-Alderson Phantoms - Optimization of Preset Parameter Settings. [PDF]
PLoS ONE, 2016 The aim of the study was to calculate the effective dose during fluoroscopy-guided pediatric interventional procedures of the liver in a phantom model before and after adjustment of preset parameters.Organ doses were measured in three anthropomorphic ...
Moritz Wildgruber +4 more
doaj +1 more source
An Assessment of Spinal Cord Dose Following Radiotherapy of Nasopharyngeal Cancer by TLD and Rando Phantom [PDF]
Iranian Journal of Medical Physics, 2009 Introduction: Nasopharyngeal carcinoma is one of the most common malignancies in the head and neck region and radiotherapy is its treatment of choice. In spite of the fact that it is widely used, due to the presence of many sensitive organs or tissues in
Mohammad Taghi Bahreyni Toossi +6 more
doaj +1 more source
Applied Sciences, 2020 We evaluate the combined usage of two systems, the Integral Quality Monitor (IQM) transmission detector and SoftDiso software, for in vivo dose monitoring by simultaneous detection of delivery and patient setup errors in whole breast irradiation.
Chiara Arilli +10 more
doaj +1 more source
Journal of Medical Physics, 2015 To accurately recompute dose distributions in chest-wall radiotherapy with 120 kVp kilovoltage X-rays, an MCNP4C Monte Carlo model is presented using a fast method that obviates the need to fully model the tube components.
B Zeinali-Rafsanjani +4 more
doaj +1 more source