Evidence map›Paper›PMID 25032805›Full record

ArticleJournal of computer assisted tomography

Diagnostic quality of dual-source coronary CT examinations performed without heart rate control: importance of obesity and heart rate on image quality.

Stefan L Zimmerman, Brian G Kral, Elliot K Fishman

Abstract read
In one paragraph

Article in Journal of computer assisted tomography. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Diagnostic Value of Dual-Source Computerized Tomography Combined with Perfusion Imaging for Peripheral Pulmonary Embolism.Iranian journal of radiology : a quarterly journal published by the Iranian Radiological Society · 2016
    Article
  9. Review
  10. Article
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

3 authors.

Stefan L ZimmermanFrom the *Department of Radiology, and †Johns Hopkins GeneSTAR Research Program, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD.
Brian G Kral
Elliot K Fishman

Funding

Novel Technologies to Identify Preclinical Coronary Disease in High Risk FamiliesRC1HL099747 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI BECKER, LEWIS C · 2009 to 2010
$1.0M
Genetic Determinants of Coronary Artery Calcification in High-Risk FamiliesK23HL094747 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI KRAL, BRIAN G · 2009 to 2013
$696k
NHLBI NIH HHS K23 HL094747NHLBI NIH HHS K23HL094747NHLBI NIH HHS RC1 HL099747NHLBI NIH HHS RC1HL099747
6 · The paper itself

Abstract

objectivesFor dual-source cardiac computed tomography (CT) scans without heart rate (HR) control, the influence of body habitus on quality is uncertain. We evaluated study quality across a range of HRs and body size.

methodsOne hundred sixty subjects were randomly selected for 4 HR groups (<70, 70-79, 80-89, ≥90 beats per minute) from 703 subjects who underwent cardiac CT without premedication. Coronary visualization quality was scored on a 3-point scale (1, nondiagnostic; 2, diagnostic; 3, excellent).

resultsNinety-nine percent of coronaries were diagnostic quality. Six vessels were nondiagnostic, mostly due to motion. Nondiagnostic or diagnostic scores (<3) were greatest in the group with HR of more than or equal to 90 beats per minute. All normal weight subjects had excellent quality, but 6% of vessels in overweight and 17% in obese subjects had diagnostic scores less than 3. The mean effective dose was 11.4 mSv and correlated with body size.

conclusionsDiagnostic quality cardiac CT examinations can be obtained without premedication regardless of body size.

Indexed as

Heart RateTomography, X-Ray ComputedCoronary AngiographyFemaleHumansMaleMiddle AgedObesityProspective Studies

Identifiers

PMID25032805
PMCPMC4237719

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Registered trials

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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.