Results 11 to 20 of about 6,218,792 (246)

A survey of computed tomography dose index and dose length product level in usual computed tomography protocol [PDF]

Journal of Cancer Research and Therapeutics, 2018
Background: Nowadays, the use of computed tomography (CT) as a diagnostic tool has been considerably increased. Therefore, implementation of the program to conform the protection regulations on the CT scan is necessary to reduce the detrimental effects of radiation.
Akbar, Aliasgharzadeh, Ehsan, Mihandoost, Mehran, Mohseni   +2 more
openaire   +3 more sources

Radiation dose associated with common computed tomography examination

The Egyptian Journal of Radiology and Nuclear Medicine, 2017
Objective: To survey computed tomography (CT) radiation dose associated with non-contrast spiral Multislice CT examination in our institute. Methods: Detailed parameters for 362 consecutive examinations, including the patient weight, height, volume CT ...
Ayman Mokhtar, Mohamed Elawdy, Maysa Abd El-Hamid, Huda Refaie, Tarek A. El-Diasty, Sabry El Mogy   +5 more
doaj   +2 more sources

Dose Assessment in Computed Tomography Examination and Establishment of Local Diagnostic Reference Levels in Mazandaran, Iran

Journal of Biomedical Physics and Engineering, 2015
Background: Medical X-rays are the largest man-made source of public exposure to ionizing radiation. While the benefits of Computed Tomography (CT) are well known in accurate diagnosis, those benefits are not risk-free.
Janbabanezhad Toori A., Shabestani-Monfared A., Deevband M.R., Abdi R., Nabahati M.   +4 more
doaj   +1 more source

Impact of body mass index on the reliability of the CT0–4 grading system: a comparison of computed tomography protocols [PDF]

Digital Diagnostics, 2022
BACKGROUND: The increased frequency of chest computed tomography utilization in the fight against COVID-19 has made usage of low-dose computed tomography necessary to reduce the radiation dose while preserving diagnostic quality.
Ivan A. Blokhin, Anna P. Gonchar, Maria R. Kodenko, Alexander V. Solovev, Victor A. Gombolevskiy, Roman V. Reshetnikov   +5 more
doaj   +1 more source

Development, construction, and evaluation of an alternative dosimetry phantom for computed tomography

Journal of Medical Physics, 2023
This article aims to present the development, construction, and evaluation of an alternative computed tomography dose index (CTDI) phantom. Epoxy resin was mixed with an iodine-based contrast agent to produce radiological characteristics resembling ...
Lukmanda Evan Lubis, Windi Dliya Najmah, Yuni Muliyanti, Ika Hariyati, Dea Ryangga, Terry Mart, Hilde Bosmans, Djarwani Soeharso Soejoko   +7 more
doaj   +1 more source

Assessment of Organ Dose and Effective Dose from Head Computed Tomography in Northwestern Nigeria

UMYU Scientifica Journal, 2022
The amount of radiation dose received by patient undergoing Head computed tomography examination in General Amadi rimi orthopedics and specialist hospital, Katsina has been estimated.
Jamaladdeen Kabir, Gide Muhammad Bashir, Rufa’i Usman Ahmed   +2 more
doaj   +1 more source

Establishment of Diagnostic Reference Levels for Computed Tomography Scanning in Hamadan [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: New advancements have increased the capabilities of computed tomography as a sectional medical imaging modality. An important note is assessing absorbed dose to patients and minimizing it when performing computed tomography examinations.
S Jafari, K Ghazikhanlu Sani, M Karimi, H Khosravi, R Goodarzi, M Pourkaveh   +5 more
doaj   +1 more source

Image quality and radiation dose assessment for the clinically applied 16-slice CT scanner using PMMA phantom and quality assurance phantom

The Egyptian Journal of Radiology and Nuclear Medicine, 2023
The goal of this study was to assess the radiation dose delivered accuracy and the acceptable image quality parameter from the 16-slice Philips CT scanner in order to evaluate the current methodology for quality controls of computed tomography systems ...
Tadelech Sisay Mekonin, Tilahun Tesfaye Deressu   +1 more
doaj   +1 more source

Development of In-House Head Computed Tomography Dose Index Phantoms Based on Polyester-Resin Materials [PDF]

Iranian Journal of Medical Physics, 2021
Introduction: Computed tomography dose index (CTDI) phantoms are used to optimize CT examinations in terms of image quality and the received dose. In this study, we aimed to develop cost-effective head CTDI phantoms from polyester-resin (PESR) materials ...
Rin Asiah, Heri Sutanto, Choirul Anam, Zaenal Arifin, Bahrudin Bahrudin, Rumaisya Hilmawati   +5 more
doaj   +1 more source

Diagnostic reference levels for head and abdominal computed tomography of adult patients in selected states in South-South Nigeria

Journal of Radiation and Cancer Research, 2021
Context: Diagnostic reference level (DRL) is the first step in the optimization process to manage patient dose corresponding with the medical purpose. Aim: The objective of this study was to develop local DRL for computed tomography (CT) of the head and ...
Anwuli Christiana Tobi, Chukwuka Emmanuel Mokobia, Joyce Ekeme Ikubor, Akintayo Daniel Omojola, Maryann Etim Ekpo, Anita Franklin Akpolile   +5 more
doaj   +1 more source