Results 31 to 40 of about 13,337,459 (299)

Determination of Diagnostic Reference Level (DRL) in Common Computed Tomography Examinations with the Modified Quality Control-Based Dose Survey Method in Four University Centers: A Comparison of Methods [PDF]

Journal of Biomedical Physics and Engineering, 2021
Background: The diagnostic reference level (DRL) is measured with different methods in the common Computed tomography (CT) exams, but it has not been measured through the size-specific dose estimate (SSDE) method in Iran, yet. Objective: This study aimed
Jalal Tabesh, Maziyar Mahdavi, Gholamhasan Hadadi, Rezvan Ravanfar Haghighi, Reza Jalli   +4 more
doaj   +1 more source

Comparisons of Water-Equivalent Diameter Measured on Images of Abdominal Routine Computed Tomography with and without A Contrast Agent

Atom Indonesia, 2021
The size-specific dose estimate (SSDE) is a metric for an estimation of patient dose in computed tomography (CT). The SSDE strongly depends on the water-equivalent diameter (DW).
A. Nitasari, C. Anam, W. S. Budi, A. L. Wati, S Syarifudin, G. Dougherty   +5 more
doaj   +1 more source

Radiation dose of head and abdomen-pelvis computed tomography examinations using size-specific dose estimate

International Journal of Radiation Research, 2022
Background : Concern about radiation risk of computed tomography (CT) scan as a diagnostic modality has increased in recent years. Diagnostic reference levels (DRLs) is one of the tools to optimizing radiation dose of patients.
M. Ahmadifard, M. Bakhshandeh, A. Mohammadbeigi, K. Khoshgard   +3 more
semanticscholar   +1 more source

Comparative Study of Image Quality and Radiation Dose between 120kVp Filtered Back Projection and 80kVp Iterative Reconstructed Computed Tomography Images

Journal of Karnali Academy of Health Sciences, 2023
Background: Iterative Reconstruction techniques have been shown to produce diagnostically acceptable images at low doses to the patient. This study aimed to compare the image quality and radiation dose between 120kVp Filtered Back Projection and 80kVp ...
Sweta Joshi, Sharma Paudel, Sundar Suwal, Shanta Lall Shrestha, Benu Lohani, Shashi Shekhar Shingh   +5 more
doaj   +1 more source

Size-specific Dose Estimates for Adult Patients at CT of the Torso [PDF]

Radiology, 2012
To determine relationships among patient size, scanner radiation output, and size-specific dose estimates (SSDEs) for adults who underwent computed tomography (CT) of the torso.Informed consent was waived for this institutional review board-approved study of existing data from 545 adult patients (322 men, 223 women) who underwent clinically indicated ...
Jodie A, Christner, Natalie N, Braun, Megan C, Jacobsen, Rickey E, Carter, James M, Kofler, Cynthia H, McCollough   +5 more
openaire   +2 more sources

Violin plot comparison of size-specific dose estimation.

, 2023
The blue graph represents the reduction protocol group, while the red graph represents the standard protocol group in the violin plot chart. The Y-axis represents the size-specific dose estimate of the portal phase.
In Jae Lee (10003351), Hong Il Ha (6260846), Hyun Kyung Lim (9547300), Min Su Park (744914), Jhii-Hyun Ahn (12565060)   +4 more
core   +1 more source

Investigation of Eye Lens Dose Estimate based on AAPM Report 293 in Head Computed Tomography [PDF]

Journal of Biomedical Physics and Engineering, 2021
Background: Estimation of eye lens dose is important in head computed tomography (CT) examination since the eye lens is a sensitive organ to ionizing radiation.
Choirul Anam, Winda Kusuma Dewi, Masdi Masdi, Freddy Haryanto, Toshioh Fujibuchi, Geoff Dougherty   +5 more
doaj   +1 more source

PATIENTS DOSE ESTIMATION IN CT EXAMINATIONS USING SIZE SPECIFIC DOSE ESTIMATES

Radiation Protection Dosimetry, 2018
Abstract The present work reports data of radiation exposure to the patients during head, chest, pelvis and abdomen CT examinations performed on a third-generation 16-slice CT machine. Radiation exposure was estimated using size specific dose estimates (SSDE) method, which takes into account patient’s physical dimensions in phantom ...
Neha Choudhary, Bhupendra Singh Rana, Arvind Shukla, Arun Singh Oinam, Narinder Paul Singh, Sanjeev Kumar   +5 more
openaire   +2 more sources

Children's estimates of food portion size: the development and evaluation of three portion size assessment tools for use with children [PDF]

, 2008
A number of methods have been developed to assist subjects in providing an estimate of portion size but their application in improving portion size estimation by children has not been investigated systematically.
Mathers, John, J. C. Mathers, Cornelissen, Piers, Foster, E, Cornelissen, P, Harris, Julie, Matthews, J N S, L. Marshall, Lloyd, J, Adamson, A J, Matthews, John, Adamson, Ashley, Wrieden, W, J. Harris, M. Nelson, Barton, K L, Foster, Emma, Marshall, L., Nelson, Michael, E. Foster, Marshall, L, Lloyd, John, Nelson, M, Matthews, J, W. L. Wrieden, Wrieden, W L, Barton, Karen L., Wrieden, Wendy, J. Lloyd, A. J. Adamson, Adamson, A, K. L. Barton, Harris, J, Mathers, J, Marshall, Lindsay, Mathers, J C, P. Cornelissen, J. N. S. Matthews   +37 more
core   +1 more source

Automatic Calculation Of Lateral Diameter For Size-Specific Dose Estimate Using A Matlab-Based Kinect Camera

, 2021
In this paper, we develop a Matlab-based program on a Kinect camera to automatically calculate lateral diameter (Dlat) for estimating size-specific dose estimate (SSDE). SSDE is a metric used to express the patient’s dose in a CT examination. This metric
Dougherty, Geoff, Widodo, Catur Edi, Anam, Choirul, Naufal, Ariij   +3 more
core   +2 more sources