Evidence map›Paper›PMID 26850031›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2017

Visual identification of coronary calcifications on attenuation correction CT improves diagnostic accuracy of SPECT/CT myocardial perfusion imaging.

Nicholas D Patchett, Sumeet Pawar, Edward J Miller

Abstract read
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In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.4field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. The impact of coronary calcium score as an addition to myocardial perfusion imaging in altering clinical management (ICCAMPA trial).Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2023
    Article
  6. Deep Learning Coronary Artery Calcium Scores from SPECT/CT Attenuation Maps Improve Prediction of Major Adverse Cardiac Events.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2023
    Article
  7. Article
  8. Performance of visual, manual, and automatic coronary calcium scoring of cardiacJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2023
    Article
  9. Review
  10. Visually estimated coronary artery calcium score improves SPECT-MPI risk stratification.International journal of cardiology. Heart & vasculature · 2021
    Article
  11. Do we need dedicated cardiac SPECT systems?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  12. Is SPECT LVEF assessment more accurate than CT at higher heart rates? More evidence for complementary information in multimodality imaging.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  13. Staged testing as a solution to the challenges of testing lower risk patients.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2020
    Article
  14. Leveraging latest computer science tools to advance nuclear cardiology.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2019
    Article
  15. 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
    Article
  16. CT attenuation correction for thallium SPECT MPI and other benefits of multimodality imaging.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2019
    Article
  17. Review
  18. Article
  19. Simple multimodality imaging: An easy, rapid, and inexpensive approach to improve non-invasive test accuracy.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2017
    Article
  20. Novel SPECT Technologies and Approaches in Cardiac Imaging.Cardiovascular innovations and applications · 2016
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

Nicholas D PatchettDepartment of Internal Medicine, Boston Medical Center and Boston University School of Medicine, Boston, MA, USA.
Sumeet PawarDepartment of Internal Medicine, Boston Medical Center and Boston University School of Medicine, Boston, MA, USA.
Edward J MillerSection of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06520, USA. edward.miller@yale.edu.
Boston Medical Center · USBoston University · USYale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCoronary artery calcium (CAC) is a powerful CAD risk marker when assessed by dedicated calcium scoring CT scan. We assessed diagnostic implications of CAC visible on attenuation correction CT scans (CTAC) from SPECT/CT myocardial perfusion imaging (MPI).

methodsVisual presence or absence of CAC was assessed on CTAC in 1047 consecutive patients undergoing SPECT/CT MPI. Accuracy of MPI was assessed in patients undergoing invasive coronary angiography (ICA) within 1 year (n = 109). Outcomes were identified by retrospective chart review.

resultsPrevalence of true positive SPECT/CT MPI studies was greater among patients with CAC on CTAC (70% vs 16%; p < .001); prevalence of false positive studies was greater among those without (68% vs 15%; p < .001). PPV of MPI was 0.82 in patients with CAC, but only 0.19 in those without. Within median follow-up of 27.7 months, patients with CAC had higher all-cause mortality (6% vs 0.4%; p < .001), more late revascularizations (8% vs 0.4%; p < .001), and more MI (5% vs 0.2%; p < .001). Hazard ratio for all-cause mortality, MI, or late revascularization was 22.7 (p < .001) for patients with CAC vs those without.

conclusionsVisual assessment of CAC on CTAC should be performed during SPECT/CT MPI because it affects diagnostic certainty and may improve risk stratification.

Indexed as

ArtifactsComputed Tomography AngiographyCoronary Artery DiseaseFemaleHumansImage EnhancementMaleMiddle AgedMyocardial Perfusion ImagingObserver VariationReproducibility of ResultsSensitivity and SpecificitySingle Photon Emission Computed Tomography Computed TomographyUser-Computer InterfaceVascular Calcificationcomputed tomography (CT)coronary artery diseasediagnostic and prognostic applicationMyocardial perfusion imaging: SPECT

Identifiers

PMID26850031
OpenAlexW2261245824

What OpenQuestion holds

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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.