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The impact of patient table on size-specific dose estimate (SSDE)

Australasian Physical & Engineering Sciences in Medicine, 2017
The use of parameters water equivalent diameter (D W ) and size-specific dose estimate (SSDE) are becoming increasingly established as a recognised method to relate patient dose from a CT examination to the dose indicator volume CT dose index (CTDIVOL).
C. Anam   +5 more
semanticscholar   +3 more sources

THE SIZE-SPECIFIC DOSE ESTIMATE (SSDE) FOR TRUNCATED COMPUTED TOMOGRAPHY IMAGES

Radiation Protection Dosimetry, 2017
The purpose of this study is to investigate truncated axial computed tomography (CT) images in the clinical environment and to produce correction factors for abdomen, thoracic and head regions based on clinical data, in order to accurately predict the water-equivalent diameter (DW) and size-specific dose estimate (SSDE). We investigated axial images of
C. Anam   +4 more
semanticscholar   +3 more sources

Simplifying Size-Specific Radiation Dose Estimates in Pediatric CT

American Journal of Roentgenology, 2015
Size-specific dose estimates (SSDEs) require manual measurement of torso diameters for individual patients--anteroposterior (hereafter, D(AP)), lateral (hereafter, D(LAT)), and effective (hereafter, D(E))--which can be tedious in clinical settings. We aimed to determine whether body weight can be used as a surrogate for measuring diameter in children.D(
Ranish Deedar Ali Khawaja   +2 more
exaly   +3 more sources

Evaluation of direct point dose estimation based on the distribution of the size-specific dose estimate

Physical and Engineering Sciences in Medicine
The aim of this study was to evaluate the point doses using a distribution of the size-specific dose estimate (SSDE) from axial CT images of in-house phantoms having diameters from 8 to 40 cm. In-house phantoms made of polyester-resin (PESR) mixed with methyl ethyl ketone peroxide (MEKP) were used.
Heri Sutanto   +2 more
exaly   +3 more sources

How to Appropriately Calculate Effective Dose for CT Using Either Size-Specific Dose Estimates or Dose-Length Product

American Journal of Roentgenology, 2015
The purpose of this study is to show how to calculate effective dose in CT using size-specific dose estimates and to correct the current method using dose-length product (DLP).Data were analyzed from 352 chest and 241 abdominopelvic CT images. Size-specific dose estimate was used as a surrogate for organ dose in the chest and abdominopelvic regions ...
Samuel Brady, Robert Kaufman
exaly   +3 more sources

Exploring the correlation between effective dose and BMI-based size-specific dose estimate in CT angiography

European Journal of Radiology
Computed tomography angiography (CTA) is a widely used diagnostic tool, but concerns about radiation exposure necessitate accurate dose estimation. This study investigates the correlation between Effective Dose (ED) and Size-Specific Dose Estimate (SSDE) estimated from the patient's body mass index (BMI) in CTA to evaluate the utility of SSDE-BMI as a ...
Dindar S Bari
exaly   +3 more sources

Size specific dose estimation in pediatric CT: preliminary study and conversion factors.

Radiation Protection Dosimetry
Abstract The objective of this paper is to compare the differences between volumetric CT dose index (CTDIVOL) and size-specific dose estimate (SSDEWED) based on water equivalent diameter (WED) in radiation dose measurement, and explore a new method for fast calculation of SSDEWED.
Jian Zhang, Xiao-Jun Zhang
semanticscholar   +3 more sources

The role of Size-Specific Dose Estimate (SSDE) in patient-specific organ dose and cancer risk estimation in paediatric chest and abdominopelvic CT examinations

open access: yesEuropean Radiology, 2016
To develop a clinically applicable method to estimate patient-specific organ and blood doses and lifetime attributable risks (LAR) from paediatric torso CT examinations.
C. Franck   +7 more
semanticscholar   +2 more sources

Dose reference level based on size-specific dose estimate (SSDE) and feasibility of deriving effective body diameter using tube current and time product (mAs) for adult chest and abdomen computed tomography (CT) procedures

Journal of Radiological Protection, 2023
This study aimed to establish dose reference level (NDRL SSDE ) based on size-specific dose estimate (SSDE) derived using effective diameter ( Deff ) for adult chest and abdomen computed tomography (CT) procedures and to explore the feasibility of ...
T. Amalaraj   +3 more
semanticscholar   +1 more source

Evaluation of a new predictive equation for automated calculation of size-specific dose estimate (SSDE) in CT imaging.

Radiography, 2023
INTRODUCTION The adoption of size-specific dose estimate (SSDE) in clinical practice is still limited owing to the tedious and complex manual measurement of individual patient size for the clinical calculation of SSDE.
N. D. Osman   +3 more
semanticscholar   +1 more source

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