مرور Volume 7, Issue 3 بر اساس عنوان
در حال نمایش موارد 1 - 10 از 10
-
An Analytical-empirical Calculation of Linear Attenuation Coefficient of Megavoltage Photon Beams
(Shiraz University of Medical Sciences, 2017-09-01)Background: In this study, a method for linear attenuation coefficient calculation was introduced.Methods: Linear attenuation coefficient was calculated with a new method that base on the physics of interaction of photon ...
-
Evaluation of Radiation Exposure Pattern and Radiation Absorbed Dose Resulting from Occupational Exposure of Anesthesiologists to Ionizing Radiation
(Shiraz University of Medical Sciences, 2017-09-01)Introduction: Little information is available concerning the radiation exposure of anesthesiologists, and no such data have previously been collected in Iran. This prospective study was performed to determine the amount ...
-
Impact of Prolonged Fraction Delivery Time Modelling Stereotactic Body Radiation Therapy with High Dose Hypofractionation on the Killing of Cultured ACHN Renal Cell Carcinoma Cell Line
(Shiraz University of Medical Sciences, 2017-09-01)Introduction: Stereotactic body radiotherapy delivers hypofractionated irradiation with high dose per fraction through complex treatment techniques. The increased complexity leads to longer dose delivery times for each ...
-
Modelling Tumor-induced Angiogenesis: Combination of Stochastic Sprout Spacing and Sprout Progression
(Shiraz University of Medical Sciences, 2017-09-01)Background: Angiogenesis initiated by cancerous cells is the process by which new blood vessels are formed to enhance oxygenation and growth of tumor. Objective: In this paper, we present a new multiscale mathematical model ...
-
Online Estimation of Elbow Joint Angle Using Upper Arm Acceleration: A Movement Partitioning Approach
(Shiraz University of Medical Sciences, 2017-09-01)Estimating the elbow angle using shoulder data is very important and valuable in Functional Electrical Stimulation (FES) systems which can be useful in assisting C5/C6 SCI patients. Much research has been conducted based ...
-
The Optimization of Magnetic Resonance Imaging Pulse Sequences in Order to Better Detection of Multiple Sclerosis Plaques
(Shiraz University of Medical Sciences, 2017-09-01)Background and objective: Magnetic resonance imaging (MRI) is the most sensitive technique to detect multiple sclerosis (MS) plaques in central nervous system. In some cases, the patients who were suspected to MS, Whereas ...
-
Reducing radiation doses in female breast and lung during CT examinations of thorax: A new technique in two scanners
(Shiraz University of Medical Sciences, 2017-09-01)Background: Chest CT is a commonly used examination for the diagnosis of lung diseases, but a breast within the scanned field is nearly never the organ of interest.Objective: The purpose of this study is to compare the ...
-
Synergistic Effects of NDRG2 Overexpression and Radiotherapy on Cell Death of Human Prostate LNCaP Cells
(Shiraz University of Medical Sciences, 2017-09-01)Background: Radiation therapy is among the most conventional cancer therapeutic modalities with effective local tumor control. However, due to the development of radio-resistance, tumor recurrence and metastasis often occur ...
-
Uncertainty Analysis in MRI-based Polymer Gel Dosimetry
(Shiraz University of Medical Sciences, 2017-09-01)Background: Polymer gel dosimeters combined with magnetic resonance imaging (MRI) can be used for dose verification of advanced radiation therapy techniques. However, the uncertainty of dose map measured by gel dosimeter ...
-
An Update of Couch Effect on the Attenuation of Megavoltage Radiotherapy Beam and the Variation of Absorbed Dose in the Build-up Region
(Shiraz University of Medical Sciences, 2017-09-01)Purpose: Fiber carbon is the most common material used in treating couch as it causes less beam attenuation than other materials. Beam attenuation replaces build-up region, reduces skin-sparing effect and causes target ...



