Isfahan University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Simultaneous Comparison of Image Quality and Radiation-Induced Cancer Risk in Brain Ct Scans Among Different Scanners Publisher



Gholami N1 ; Kiani M1 ; Chaparian A1
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Isfahan Medical School Published:2024


Abstract

Background: The parameters of image quality depend on the radiation dose and the CT scanner type. This study aimed to simultaneously compare the image quality and the risk of carcinogenesis caused by radiation in the CT scan of the brain in different scanners. Methods: The present descriptive-analytical cross-sectional study was conducted on 200 patients who had been referred to hospitals of Isfahan city including Kashani (Siemens (scanner 1) and Canon (scanner 2)), Al-Zahra (General Electric (scanner 3)), Isa bin Maryam (Neusoft (Scanner 4)) for brain CT scan. Organ doses and effective doses of patients were obtained with a calculating program, Impact dose, and risk of exposure-induced death (REID) values estimated by the PCXMC program. The image quality was evaluated by examining the parameters of image noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). To compare different scanners, the CNR to REID ratio was introduced as the C criterion. Findings: The average values of REID for scanners 1 to 4 were obtained at 2.98, 4.46, 5.07, and 4.65 per 100,000 men and 3.22, 6.16, 6.53, and 6.26 per 100,000 women, respectively. The average CNR values for scanners 1 to 4 were 1.24, 1.05, 1.66 and 2.08, respectively. Scanners 1 and 2 had the highest and lowest C criteria, respectively. Conclusion: The results of this study showed that the radiation dose and the risk caused by radiation in the brain CT scan test should always be evaluated considering the image quality parameters, and a scanner with a higher CNR to REID ratio is more suitable. © 2024 Isfahan University of Medical Sciences(IUMS). All rights reserved.
Related Docs
View other Related Docs
1. Evaluation of Image Quality, Organ Doses, Effective Dose, and Cancer Risk From Pediatric Brain Ct Scans, European Journal of Radiology (2023)
2. Evaluation of Image Quality, Organ Dose, Effective Dose and Cancer Risk in Pediatric Chest Ct Procedure, Journal of Isfahan Medical School (2023)
3. Organ Doses, Effective Dose, and Cancer Risk From Coronary Ct Angiography Examinations, American Journal of Roentgenology (2020)
4. Radiation Dose and Risk of Exposure-Induced Death Associated With Chest Ct Examination During Covid-19 Outbreak, Radioprotection (2023)
5. Investigating the Effects of the Kv Assist Technique on Image Quality and the Reduction of Effective Dose and Carcinogenic Risk of Coronary Computed Tomography Angiography, Journal of Isfahan Medical School (2021)
6. Estimating Risk of Exposure Induced Cancer Death in Patients Undergoing Computed Tomography Pulmonary Angiography, Radioprotection (2017)
7. Assessment of Image Quality and Radiation Dose in Some Models of Digital Radiography Systems - a Pehamed Fluorad a + D Phantom Study, Radioprotection (2018)
8. Evaluation of Radiographers' and Ct Technologists' Knowledge Regarding Ct Exposure Parameters, Polish Journal of Medical Physics and Engineering (2019)
Experts (# of related papers)
View all Related Experts
Daryoush Shahbazi-Gahrouei (18)
Ali Chaparian (16)
Other Related Docs
9. Pragmatic Approaches to Reducing Radiation Dose in Brain Computed Tomography Scan Using Scan Parameter Modification, Journal of Medical Signals and Sensors (2022)
10. Influences of Adaptive Statistical Iterative Reconstruction on Image Quality and Dose Reduction in Coronary Computed Tomography Angiography, Journal of Isfahan Medical School (2017)
11. Practical Approach to Reducing Patients' Radiation Dose in Multidetector Computed Tomography-128 Using Modification of Scan Parameters, Journal of Isfahan Medical School (2020)
12. Assessment of Radiation-Induced Cancer Risk to Patients Undergoing Computed Tomography Angiography Scans, International Journal of Radiation Research (2018)
13. Evaluation of Radiation-Induced Cancer Risk to Patients Undergoing Intra-Oral and Panoramic Dental Radiographies Using Experimental Measurements and Monte Carlo Calculations, International Journal of Radiation Research (2017)
14. Evaluating the Justification of Computed Tomography (Ct) Scan Requests to Reduce the Risk of Radiation-Induced Cancers, Journal of Isfahan Medical School (2018)
15. Tradeoffs Between Radiation Exposure to the Lens of the Eyes and Diagnostic Image Quality in Pediatric Brain Computed Tomography, Journal of Medical Signals and Sensors (2023)
16. Coronary Ct Angiography by Modifying Tube Voltage and Contrast Medium Concentration: Evaluation of Image Quality and Radiation Dose, Echocardiography (2019)
17. Estimation of Absorbed Dose of the Thyroid Gland in Patients Undergoing 64-Slice Head Computed Tomography and Comparison the Results With Impact Software and Computed Tomography Scan Dose Index, Journal of Medical Signals and Sensors (2019)
18. Evaluation of the Relation Between Breast Glandular Absorbed Dose and Radiographic Quality in Mammography, Iranian Journal of Radiation Research (2008)
19. Children, Ct Scan and Radiation, International Journal of Preventive Medicine (2010)
20. Evaluation of Absorbed Dose From Common Radiology Examinations in Yasuj, Iran Using Experimental Measurement and Monte Carlo Calculations, Journal of Isfahan Medical School (2016)
21. Conventional and Spiral Ct Dose Indices in Yazd General Hospitals, Iran, Iranian Journal of Radiation Research (2006)
22. Patient Dose Resulting From Ct Examinations in Yazd, Iran, Iranian Journal of Radiation Research (2006)
23. Introduction of a New Parameter for Evaluation of Digital Radiography System Performance, Journal of Medical Signals and Sensors (2020)
24. Investigation and Comparison of Coplanar Versus Noncoplanar Intensity-Modulated Radiation Therapy (Imrt) Techniques in Glioblastoma Multiforme Tumors, Journal of Isfahan Medical School (2018)
25. Comparative Assessment of the Influences of Iterative Model Reconstruction (Imr) and Hybrid-Iterative Reconstruction (Hir) on Image Quality of 256-Slice Coronary Computed Tomography Angiography, Journal of Isfahan Medical School (2020)
26. Estimating Radiotherapy-Induced Secondary Cancer Risk Arising From Brain Irradiation at High Energy: A Monte Carlo Study, Frontiers in Biomedical Technologies (2022)
27. Determination of Uterus Absorbed Dose by Patients Following Myocardial Perfusion Scan Using Tld and Conjugate View Methods, Journal of Biomedical Physics and Engineering (2019)
28. Entrance Surface Dose Measurements for Routine X-Ray Examinations in Chaharmahal and Bakhtiari Hospitals, Iranian Journal of Radiation Research (2006)
29. Investigation of the Absorbed Dose and Estimation of the Risk of Secondary Thyroid Cancer in Whole-Brain Radiotherapy, Journal of Isfahan Medical School (2017)
30. Evaluation of Received Radiation Rate in Patients With Trauma Hospitalized in Isfahan City, Iran, Journal of Isfahan Medical School (2019)
31. Investigating the Effect of Different Metal Sheets on Reducing Radiation Behind Intraoral Digital Phosphor Plates During Intraoral Radiography Using Gray Value, Open Dentistry Journal (2020)
32. Estimating the Absorbed Doses From 99Mtc-Mdp in Patients Following Bone Scan, Journal of Isfahan Medical School (2015)
33. Diagnostic Reference Levels (Drls) for Routine X-Ray Examinations in Lorestan Province, Iran, International Journal of Radiation Research (2015)
34. Optimization of Ct Slice Thickness in 3D-Crt and Imrt Planning of Low Grade Glioma, International Journal of Radiation Research (2021)
35. Quality Control Assessment of Radiology Devices in Kerman Province, Iran, Iranian Journal of Medical Physics (2016)
36. Myocardial Perfusion Single-Photon Emission Computed Tomography (Spect) Image Denoising: A Comparative Study, Diagnostics (2023)
37. Survey of Ct Radiation Doses and Iodinated Contrast Medium Administration: An International Multicentric Study, European Radiology (2024)
38. What Is the Impact of Clinical Guidelines on Imaging Costs?, Journal of Education and Health Promotion (2021)
39. Comparison of Dosimetry of Organs at Risk for the Treatment of Nasopharyngeal Cancer Using Two Methods of Helical Tomotherapy and Three Dimensional Conformal Radiation Therapy, Journal of Isfahan Medical School (2023)
40. Generating Synthetic Computed Tomography and Synthetic Magnetic Resonance (Smr: St1w/St2w) Images of the Brain Using Atlas-Based Method, Iranian Journal of Medical Physics (2019)
41. Imaging Role in Diagnosis, Prognosis, and Treatment Response Prediction Associated With High-Grade Glioma, Journal of Medical Signals and Sensors (2024)
42. Evaluation of Various Energy Windows at Different Radionuclides for Scatter and Attenuation Correction in Nuclear Medicine, Annals of Nuclear Medicine (2015)
43. Determination of the Neutron Contamination During Brain Radiotherapy Using a Moderated-Boron Trifluoride Detector and the Mcnp Monte Carlo Code, Radiation Protection Dosimetry (2022)
44. Post-Chemo-Radiotherapy Response and Pseudo-Progression Evaluation on Glioma Cell Types by Multi-Parametric Magnetic Resonance Imaging: A Prospective Study, BMC Medical Imaging (2023)
45. Comparison of 3D Conformal and Intensity Modulated Radiotherapy in Early Stage Oral Tongue Cancer: Dosimetric and Radiobiological Evaluation, International Journal of Radiation Research (2020)
46. The Apparent Diffusion Coefficient Changes After Radiation Therapy in Patients With Astrocytoma Cancer and Its Relationship With Tumor Volume-Dose, Journal of Isfahan Medical School (2022)
47. Comparison of Dose-Area Product in Panoramic and Cone-Beam Computed Tomography Radiographies at Adult and Pediatric Age Groups in Yazd Province, Iran, Journal of Isfahan Medical School (2020)
48. Deep-Neural Network Approaches for Predicting 3D Dose Distribution in Intensity-Modulated Radiotherapy of the Brain Tumors, Journal of Applied Clinical Medical Physics (2024)
49. Comparison of Accuracy in Calculation of Absorbed Dose to Patients Following Bone Scan With 99Mtc-Marked Diphosphonates by Two Different Background Correction Methods, Journal of Medical Signals and Sensors (2016)
50. Dose Response Evaluation of a Low Density Anoxic Polymer Gel Dosimeter Using Mri, International Journal of Radiation Research (2015)