Evidence map›Paper›PMID 31222529›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2021

Quantification of myocardial flow reserve using a gamma camera with solid-state cadmium-zinc-telluride detectors: Relation to angiographic coronary artery disease.

Ana Carolina do A H de Souza, Bernardo K D Gonçalves, Angelo L Tedeschi, Ronaldo S L Lima

Abstract read
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In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Recent Progress in Myocardial Perfusion Imaging Techniques.Nuclear medicine and molecular imaging · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Diagnostic value of quantitative myocardial blood flow assessment by NaI(Tl) SPECT in detecting significant stenosis: a prospective, multi-center study.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2023
    Article
  10. Article
  11. Myocardial blood flow quantitation with the SPECT technique: Where do we stand?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Quantification of myocardial perfusion reserve by CZT-SPECT: A head to head comparison withJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  16. Article
  17. Impact of attenuation correction for CZT-SPECT measurement of myocardial blood flow.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  18. Review
  19. A big step towards clinical implementation of myocardial blood flow quantification with CZT SPECT.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  20. Cardiac PET imaging: Lost in quantification. It's time to find the way.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    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

4 authors at 2 institutions in 1 country.

Ana Carolina do A H de SouzaDepartment of Cardiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. ana_carolina_amaral@hotmail.com.
Bernardo K D GonçalvesDepartment of Cardiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Angelo L TedeschiDepartment of Cardiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Ronaldo S L LimaDepartment of Cardiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Universidade Federal do Rio de Janeiro · BRCentrus Diagnósticos por Imagem · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have suggested using gamma cameras with cadmium-zinc-telluride (CZT) detectors to quantify myocardial blood flow (MBF) and flow reserve (MFR). In this study, we aimed to evaluate the feasibility and accuracy of MFR quantification using a CZT camera compared to coronary angiography.

methodsForty-one participants referred for coronary angiography underwent a rest/stress one-day myocardial perfusion imaging protocol using a CZT gamma camera. Rest and stress dynamic phases were followed by acquisition of traditional perfusion images and time-activity curves were generated. Angiographic and perfusion results were compared to MFR.

resultsPatients with abnormal perfusion presented reduced MFR (2.01 [1.48-2.77] vs. 2.94 [2.38-3.64], P = 0.002), and reduced stress MBF. Patients with high-risk CAD had lower global MFR compared to patients without obstructive disease (1.99 [1.22-2.84] vs. 2.89 [2.22-3.58], P = 0.026). Obstructed vessels showed lower regional MFR when compared to non-obstructed (1.81 [1.19-2.67] vs. 2.75 [2.13-3.42], P < 0.001). A regional MFR of 2.2 provided a sensitivity of 63.2% and specificity of 74.1% to identify an obstructive lesion in the corresponding artery.

conclusionIn patients undergoing invasive coronary angiography for the evaluation of CAD, quantifying MBF and MFR in a CZT gamma camera is feasible and reflects underlying disease. In these patients, reduced regional MFR suggests the presence of obstructive lesion(s).

Indexed as

Fractional Flow Reserve, MyocardialAgedAlgorithmsAngiographyAnimalsCadmiumCoronary AngiographyCoronary Artery DiseaseFemaleGamma CamerasHumansImage Processing, Computer-AssistedMaleMiddle AgedMyocardial Perfusion ImagingPerfusionCadmiumCdZnTeTelluriumZincCADMPImyocardial blood flowSPECT

Identifiers

PMID31222529
OpenAlexW2952261346

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.