Evidence map›Paper›PMID 16344230›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Clinical validation of SPECT attenuation correction using x-ray computed tomography-derived attenuation maps: multicenter clinical trial with angiographic correlation.

Yasmin Masood, Yi-Hwa Liu, Gordon Depuey, Raymond Taillefer, Luis I Araujo, Steven Allen, Dominique Delbeke, Frank Anstett, Aharon Peretz, Mary-Jo Zito and 2 more

Abstract readControlled Clinical TrialMulticenter StudyValidation Study
PubMed Publisher
In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 2 pooled it
9.1field-weighted citation impact, top 2% of its field
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

63 citing papers in PubMed, 2 syntheses or guidelines pooled it, 179 citations in OpenAlex.

  1. Pooled it
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  9. Improved diagnostic accuracy of thallium-201 myocardial perfusion single-photon emission computed tomography with CT attenuation correction.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2019
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  12. Diagnostic implications of CZT SPECT and impact of CT attenuation correction.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2019
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  17. Impact of respiratory motion correction on SPECT myocardial perfusion imaging using a mechanically moving phantom assembly with variable cardiac defects.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2017
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  18. Myocardial perfusion imaging in women for the evaluation of stable ischemic heart disease-state-of-the-evidence and clinical recommendations.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2017
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3 more citing papers are in PubMed but not listed here.

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

12 authors at 7 institutions in 3 countries.

Yasmin MasoodCardiovascular Nuclear Imaging Laboratory, Yale University School of Medicine, New Haven, Connecticut 06520, USA.
Yi-Hwa Liu
Gordon Depuey
Raymond Taillefer
Luis I Araujo
Steven Allen
Dominique Delbeke
Frank Anstett
Aharon Peretz
Mary-Jo Zito
Vera Tsatkin
Frans J Th Wackers
Yale University · USGeneral Electric (Spain) · ESHôtel-Dieu de Montréal · CAMercy Medical Center · USSt. Luke's-Roosevelt Hospital Center · USUniversity of Pennsylvania · USVanderbilt University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNonuniform attenuation artifacts cause suboptimal specificity of stress single photon emission computed tomography (SPECT) myocardial perfusion images. In phantoms, normal subjects, and patients suspected of having coronary artery disease (CAD), we evaluated a new hybrid attenuation correction (AC) system that combines x-ray computed tomography (CT) with conventional stress SPECT imaging. METHODS AND

resultsThe effect of CT-based AC was evaluated in phantoms by assessing homogeneity of normal cardiac inserts. AC improved homogeneity of normal cardiac phantoms from 11% +/- 2% to 5% +/- 1% (P < .001). Attenuation-corrected normal patient files were created from 37 normal subjects with a low likelihood (<3%) of CAD. The diagnostic performance of AC for detection of CAD was evaluated in 118 patients who had stress technetium 99m sestamibi or tetrofosmin stress SPECT imaging and coronary angiography. SPECT images with and without AC were interpreted by 4 blinded readers with different interpretative attitudes. Overall, AC improved the diagnostic performance of all readers, particularly the normalcy rate. The degree of improvement depended on interpretative attitude. Readers prone to high sensitivity or with less experience had the greatest gain in the normalcy rate, whereas a reader prone to higher specificity had improvements in sensitivity and specificity but not the normalcy rate. Importantly, improvement of one diagnostic variable was not associated with worsening of other variables.

conclusionCT-based AC of SPECT images consistently improved overall diagnostic performance of readers with different interpretive attitudes and experience. CT-based AC is well suited for routine use in clinical practice.

Indexed as

ArtifactsAngiographyCoronary Artery DiseaseFemaleHumansImage EnhancementMaleMiddle AgedPhantoms, ImagingPrognosisReproducibility of ResultsSensitivity and SpecificitySubtraction TechniqueTomography, Emission-Computed, Single-PhotonTomography, X-Ray ComputedUnited States

Identifiers

PMID16344230
OpenAlexW1976583963

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.