Results 1 to 10 of about 237,859 (246)

Patient-specific Effective Dose Estimation from Dose–Length Product in Lung Computed Tomography Using Monte Carlo Simulation [PDF]

Journal of Medical Signals and Sensors
Background: Computed tomography (CT) imaging has a large portion in the dose of patients from radiological procedures; therefore, accurate calculation of radiation risk estimation in this modality is inevitable.
Gholamreza Fallahmohammadi, Zeinab Kordzini Nodeh, Mohammad Mahdavi   +2 more
doaj   +4 more sources

A method for calculating the dose length product from CT DICOM images. [PDF]

Br J Radiol, 2011
The dosimetric calculations in CT examinations are currently based on two quantities: the volume weighted CT dose index (CTDI(vol)) and the dose-length product (DLP). The first quantity is dependent on the exposure factors, scan field of view, collimation and pitch factor selections, whereas the second is additionally dependent on the scan length.In ...
Tsalafoutas IA, Metallidis SI.
europepmc   +5 more sources

Dose length product to effective dose coefficients in children. [PDF]

Pediatr Radiol, 2023
Abstract Background The most accurate method for estimating effective dose (the most widely understood metric for tracking patient radiation exposure) from computed tomography (CT) requires time-intensive Monte Carlo simulation.
Chu PW, Kofler C, Mahendra M, Wang Y, Chu CA, Stewart C, Delman BN, Haas B, Lee C, Bolch WE, Smith-Bindman R.   +10 more
europepmc   +5 more sources

Dose length product to effective dose coefficients in adults. [PDF]

Eur Radiol, 2023
The most accurate method for estimating patient effective dose (a principal metric for tracking patient radiation exposure) from computed tomography (CT) requires time-intensive Monte Carlo simulation. A simpler method multiplies a scalar coefficient by the widely available scanner-reported dose length product (DLP) to estimate effective dose.
Chu PW, Kofler C, Haas B, Lee C, Wang Y, Chu CA, Stewart C, Mahendra M, Delman BN, Bolch WE, Smith-Bindman R.   +10 more
europepmc   +3 more sources

Converting dose-length product to effective dose at CT. [PDF]

Radiology, 2008
To determine effective dose (ED) per unit dose-length product (DLP) conversion factors for computed tomographic (CT) dosimetry.A CT dosimetry spreadsheet was used to compute patient ED values and corresponding DLP values. The ratio of ED to DLP was determined with 16-section CT scanners from four vendors, as well as with five models from one ...
Huda W, Ogden KM, Khorasani MR.
europepmc   +4 more sources

Computed Tomography Dose in Paediatric Care: Simple Dose Estimation Using Dose Length Product Conversion Coefficients. [PDF]

Malays J Med Sci, 2018
The use of multislice computed tomography (MSCT) is increasing worldwide; at the same time, there is a growing awareness of the future risk of cancer associated with greater exposure to radiation. Therefore, there is a need for an accessible method of effective dose estimation.
Tap NHM, Sidek MAJ, Ridzwan SFM, Selvarajah SE, Zaki FM, Hamid HA.   +5 more
europepmc   +3 more sources

Cardiac-Specific Conversion Factors to Estimate Radiation Effective Dose From Dose-Length Product in Computed Tomography. [PDF]

JACC Cardiovasc Imaging, 2018
This study sought to determine updated conversion factors (k-factors) that would enable accurate estimation of radiation effective dose (ED) for coronary computed tomography angiography (CTA) and calcium scoring performed on 12 contemporary scanner models and current clinical cardiac protocols and to compare these methods to the standard chest k-factor
Trattner S, Halliburton S, Thompson CM, Xu Y, Chelliah A, Jambawalikar SR, Peng B, Peters MR, Jacobs JE, Ghesani M, Jang JJ, Al-Khalidi H, Einstein AJ.   +12 more
europepmc   +3 more sources

Estimation of effective dose from CT scanning using dose length product in a Nepalese hospital

Radiography Open, 2020
Keywords: Effective dose, Dose Length Product, Computed Tomography Dose Index volume, Dose Reference Level Abstract Aim: The aim of this study was to estimate the effective doses from CT scans using Dose Length Product (DLP) in a Nepalese hospital ...
Pooja Shah
doaj   +3 more sources

Correlation of Anteroposterior Diameter of Abdomen with CT Dose Index and Dose Length Product in Abdomen CT ScanA Retrospective Study [PDF]

International Journal of Anatomy Radiology and Surgery, 2021
Introduction: Computed Tomography (CT) remains an important tool in diagnostic imaging. Establishment of Diagnostic Reference Levels (DRL) is highly recommended in order to have a check on the radiation exposure. Aim: To study the correlation between
Ramesh Parthasarathy, Anand Rajamani, Ealai Athmarao Parthasarathy, Gurubharath Ilangovan, VS Akhil Sudhan   +4 more
doaj   +2 more sources

Correction to: Dose length product to effective dose coefficients in children. [PDF]

Pediatr Radiol, 2023
Chu PW, Kofler C, Mahendra M, Wang Y, Chu CA, Stewart C, Delman BN, Haas B, Lee C, Bolch WE, Smith-Bindman R.   +10 more
europepmc   +2 more sources