Topics

Development of size-specific institutional diagnostic reference levels for computed tomography protocols in neck imaging.

08:00 EDT 11th October 2019 | BioPortfolio

Summary of "Development of size-specific institutional diagnostic reference levels for computed tomography protocols in neck imaging."

Purpose To develop size-specific institutional diagnostic reference levels (DRLs) for computed tomography (CT) protocols used in neck CT imaging (cervical spine CT, cervical CT angiography (CTA) and cervical staging CT) and to compare institutional to national DRLs. Materials and Methods Cervical CT examinations (spine, n=609; CTA, n=505 and staging CT, n=184) performed between 01/2016 and 06/2017 were included in this retrospective study. For each region and examination, CTDIvol and DLP were determined and binned into size bins according to patient water-equivalent diameter (dw). Linear regression analysis was performed to calculate size-specific institutional DRLs for CTDIvol and DLP, applying the 75th percentile as upper limit for institutional DRLs. Mean institutional CTDIvol and DLP were compared to national DRLs (CTDIvol 20 mGy for cervical spine CT (DLP 300 mGycm) and cervical CTA (DLP 600 mGycm), and CTDIvol 15 mGy for cervical staging CT (DLP 330 mGycm)). Results Mean CTDIvol and DLP (± standard deviation) were 15.2±4.1 mGy and 181.5±88.3 mGycm for cervical spine CT; 8.1±4.3 mGy and 280.2±164.3 mGycm for cervical CTA; 8.6±1.9 mGy and 162.8±85.0 mGycm for cervical staging CT. For all CT protocols, there was a linear increase of CTDIvol and DLP with increasing dw. For the CTDIvol, size-specific institutional DRLs increased with dw from 14 to 29 mGy for cervical spine CT, from 5 to 17 mGy for cervical CTA and from 8 to 13 mGy for cervical staging CT. For the DLP, size-specific institutional DRLs increased with dw from 130 to 510 mGycm for cervical spine CT, from 140 to 640 mGycm for cervical CTA and from 140 to 320 mGycm for cervical staging CT. Institutional DRLs were lower than national DRLs by 81% and 67% for cervical spine CT (dw=17.8 cm), 43% and 51% for cervical CTA (dw=19.5 cm) and 59% and 53% for cervical staging CT (dw=18.8 cm) for CTDIvol and DLP, respectively. Conclusion Size-specific institutional DRLs were generated for neck CT examinations. Mean institutional CTDIvol and DLP values were well below national DRLs.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of radiological protection : official journal of the Society for Radiological Protection
ISSN: 1361-6498
Pages:

Links

DeepDyve research library

PubMed Articles [34904 Associated PubMed Articles listed on BioPortfolio]

Expanding the Concept of Diagnostic Reference Levels to Noise and Dose Reference Levels in CT.

Diagnostic reference levels were developed as guidance for radiation dose in medical imaging and, by inference, diagnostic quality. The objective of this work was to expand the concept of diagnostic r...

Optimization of Whole-Body CT Examinations of Polytrauma Patients in Comparison with the Current Diagnostic Reference Levels.

 Evaluation of the dose values of a polytrauma whole-body CT examination used in clinical practice with regard to the 2016 updated diagnostic reference levels and reduction of the mean exposure leve...

Trimester-specific reference intervals of thyroid function tests in Turkish pregnants.

Physiological changes in hormone levels occur in thyroid gland during pregnancy. Screening of the thyroid hormone levels and determining trimester-specific reference intervals in pregnancy are importa...

Multicentre survey on patient dose in paediatric imaging and proposal for updated diagnostic reference levels for France. Part 1: computed tomography.

To report on a dose survey conducted by the French societies of radiology and paediatric imaging (SFR and SFIPP) and the French public service expert in nuclear and radiological risks (IRSN), and to s...

LOCAL DRLS FOR PAEDIATRIC CT EXAMINATIONS BASED ON SIZE-SPECIFIC DOSE ESTIMATES IN KERMANSHAH, IRAN.

Due to the radiosensitivity of paediatric patients to X-ray, it is necessary to survey the paediatric DRLs using size-specific dose estimates (SSDE). In the present study, we determined the local diag...

Clinical Trials [14553 Associated Clinical Trials listed on BioPortfolio]

Cone Beam Computed Tomography for Breast Imaging

The primary aim of this study is to investigate the use of cone beam computed tomography (CBCT) for breast imaging in the diagnostic setting by providing a compelling body of evidence inco...

Cone Beam Computed Tomography for Breast Imaging

The primary aim of this study is to continue the investigation of cone beam computed tomography (CBCT) for breast imaging already underway in the diagnostic setting by providing a compelli...

Iodine Content for Diagnostic AccuRacy and Patient Comfort For Individuals Undergoing Cardiac Computed Tomography (CT) Scanning

The purpose of the study is to evaluate diagnostic performance of high iodine (iopamidol 370 mg/dl) content versus low iodine (iodixanol 300 mg/dl) content for diagnostic accuracy by contr...

Interest of Trimodality PET-CT Choline MRI Before Radiotherapy in High Risk Prostate Cancer

The initial staging of locally advanced prostate cancer is made with Computed Tomography scan (CT), Magnetic Resonance Imaging (MRI), and bone scan (BS). For this type of cancer, referenc...

Evaluation Study of RDTs Detecting Antibodies Against HCV

The study aims to evaluate 13 different HCV RDTs (10 on-market, 3 under development) for their diagnostic performance and operational characteristics in archived EDTA plasma samples, origi...

Medical and Biotech [MESH] Definitions

An imaging technique using a device which combines TOMOGRAPHY, EMISSION-COMPUTED, SINGLE-PHOTON and TOMOGRAPHY, X-RAY COMPUTED in the same session.

The amount of a particular food one chooses to eat at a single meal. It is different from SERVING SIZE, which is a reference amount of food as defined by an authoritative source, such as the Food Guide Pyramid devised by the UNITED STATES DEPARTMENT OF AGRICULTURE.

The development of systems to prevent accidents, injuries, and other adverse occurrences in an institutional setting. The concept includes prevention or reduction of adverse events or incidents involving employees, patients, or facilities. Examples include plans to reduce injuries from falls or plans for fire safety to promote a safe institutional environment.

A reference measure of food used to identify the calorie and nutrient content in a particular amount of that food. It is defined by an authoritative source, such as the Food Guide Pyramid devised by the UNITED STATES DEPARTMENT OF AGRICULTURE. It is different from PORTION SIZE, which is the amount of food one chooses to eat at a single meal.

Combinations of diagnostic or therapeutic substances linked with specific immune substances such as IMMUNOGLOBULINS; MONOCLONAL ANTIBODIES; or ANTIGENS. Often the diagnostic or therapeutic substance is a radionuclide. These conjugates are useful tools for specific targeting of DRUGS and RADIOISOTOPES in the CHEMOTHERAPY and RADIOIMMUNOTHERAPY of certain cancers.

Quick Search


DeepDyve research library

Relevant Topic

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...


Searches Linking to this Article