Evidence map›Paper›PMID 29789908›Full record

Trial reportEuropean radiology2018

Triple-rule-out CT angiography using two axial scans with 16 cm wide-detector for radiation dose reduction.

Yuhuan Chen, Qi Wang, Jianying Li, Yongjun Jia, Qi Yang, Taiping He

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Trial
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Yuhuan ChenShaanxi University of Traditional Chinese Medicine, Xianyang, 712000, Shaanxi, China.
Qi WangDepartment of Radiology, Chang'an Hospital, Xi'an, 710018, Shaanxi, China.
Jianying LiCT Research Center, GE Healthcare China, Wuxi, China.
Yongjun JiaDepartment of Radiology, Affiliated Hospital of Shaanxi Chinese Medicine University, Xianyang, 712000, China.
Qi YangDepartment of Radiology, Affiliated Hospital of Shaanxi Chinese Medicine University, Xianyang, 712000, China.
Taiping HeShaanxi University of Traditional Chinese Medicine, Xianyang, 712000, Shaanxi, China. htpkeyan@163.com.ORCID http://orcid.org/0000-0002-3100-8086

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo explore the use of two consecutive axial scans in triple-rule-out (TRO) examination on a 16 cm wide-detector CT for radiation dose reduction. MATERIALS AND

methodsSixty TRO patients were assigned to either study group (Group A, n = 30) or control group (Group B, n = 30). Group A used a two-phasic contrast injection: 25mgI/kg/s for 12 s in 1st and at 3.0 ml/s injection rate for 7 s in 2nd phase. The pulmonary artery, coronary artery and aorta were scanned in succession with two axial scans using smart-coverage technique. Group B used the conventional protocol of scanning pulmonary arteries first in helical, followed by coronary arteries in axial and aorta in helical mode with contrast injection of 25mgI/kg/s for 14 s. All images were reconstructed with 80% ASIR-V. The qualitative and quantitative image assessment and effective dose of the two groups were statistically compared.

resultsThe demographic data and quantitative measurements and qualitative image scores between the two groups were statistically the same (p > 0.05). However, Group A reduced radiation dose by 52% (2.67 ± 0.98 mSv vs. 5.65 ± 1.37 mSv) (p < 0.001).

conclusionUsing two consecutive axial scans in triple-rule-out on a 16 cm wide-detector CT reduces radiation dose while maintaining image quality compared with the conventional TRO protocol. KEY POINTS: • Triple-rule-out can be performed with two-axial scans on a wide-detector CT system. • TRO with two-axial scans maintain image quality compared with conventional protocol. • TRO with two-axial scans reduces 52% radiation dose over conventional protocol.

Indexed as

AdultAgedAged, 80 and overComputed Tomography AngiographyContrast MediaFemaleFollow-Up StudiesHumansInjections, IntravenousMaleMiddle AgedMultidetector Computed TomographyProspective StudiesRadiation DosageRadiation InjuriesReproducibility of ResultsContrast MediaChest painComputed tomography angiographyDiagnostic imagingRadiation dosageTomography, X-ray computed

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.