Evidence map›Paper›PMID 31949446›Full record

ArticleARYA atherosclerosis2019

Evaluation of image quality and radiation dose in low tube voltage coronary computed tomography angiography.

Seyedeh Shokoofeh Mousavi-Gazafroudi, Amirreza Sajjadieh-Khajouei, Maryam Moradi, Seyedeh Shabnam Mousavi-Gazafroudi, Ghasem Yadegarfar, Mohammad Bagher Tavakoli

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Article in ARYA atherosclerosis, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Seyedeh Shokoofeh Mousavi-GazafroudiDepartment of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Amirreza Sajjadieh-KhajoueiAssistant Professor, Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
Maryam MoradiAssociate Professor, Department of Radiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Seyedeh Shabnam Mousavi-GazafroudiDepartment of Medical Physics, School of Medicine, Tarbiat Modares University, Tehran, Iran.
Ghasem YadegarfarAssociate Professor, Heart Failure Research Center, Cardiovascular Research Institute AND Department of Epidemiology and Biostat, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad Bagher TavakoliProfessor, Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCoronary computed tomography angiography (CCTA) is an important modality in diagnosis of coronary artery disease (CAD). Owing to the fact that computed tomography (CT) examinations are performed using ionizing radiation; applying radiation dose-reduction strategies seems to be necessary. Lowering tube voltage (in kV) according to the patient's body mass index (BMI) or weight is an approach that is investigated by many researchers. The goal of this study was to evaluate the impact of low tube voltage CCTA on radiation dose and image quality in order to decrease radiation dose in selected patients who meet inclusion criteria of the introduced protocol.

methodsPatients with clinical indications of CCTA who met inclusion criteria were classified in two groups randomly. Imaging of two groups was performed using 120 kV and 100 kV, respectively. Subjective and objective parameters of image quality and radiation dose of two groups were measured. Afterward, data were analyzed by appropriate statistical tests using SPSS software.

resultsWhile differences in image quality between two groups were not significant, radiation dose of patients who underwent 100 kV CCTA was significantly lower than the other group. Effective doses (EDs) of first and second groups were 22.30 ± 5.48 mSv and 13.82 ± 2.00 mSv, respectively (P < 0.001).

conclusionLowering tube voltage in non-obese patients is an effective and practical approach to radiation dose reduction without missing image quality that should be considered especially for female patients.

Indexed as

Computed Tomography AngiographyContrast AgentCoronary AngiographyImage EnhancementRadiation DosageX-Rays

Identifiers

PMID31949446
PMCPMC6954360

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