Evidence map›Paper›PMID 32715416›Full record

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

Quantification of myocardial blood flow (MBF) and reserve (MFR) incorporated with a novel segmentation approach: Assessments of quantitative precision and the lower limit of normal MBF and MFR in patients.

Hui Liu, Stephanie Thorn, Jing Wu, Ramesh Fazzone-Chettiar, Veronica Sandoval, Edward J Miller, Albert J Sinusas, Yi-Hwa Liu

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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 2 papers.

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0cells of the map it votes in
2citing papers in PubMed
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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

2 citing papers in PubMed.

  1. Article
  2. 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

8 authors.

Hui LiuDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
Stephanie ThornDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
Jing WuDepartment of Radiology and Biomedical Imaging, Yale University, New Haven, CT, USA. j.wu@yale.edu.
Ramesh Fazzone-ChettiarDepartment of Nuclear Cardiology, Heart and Vascular Center, Yale New Haven Hospital, New Haven, CT, USA.
Veronica SandovalDepartment of Nuclear Cardiology, Heart and Vascular Center, Yale New Haven Hospital, New Haven, CT, USA.
Edward J MillerDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
Albert J SinusasDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
Yi-Hwa LiuDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA. yi-hwa.liu@yale.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundQuantification of myocardial blood flow (MBF) and myocardial flow reserve (MFR) has shown diagnostic and prognostic values for the assessment of coronary artery disease (CAD). This study aimed to evaluate in patients a highly automatic Yale-MQ (myocardial blood flow quantification) software incorporated with a novel image segmentation approach for quantification of global and regional MBF and MFR from dynamic

methodsGlobal and regional MBFs and MFRs were quantified in 80 patients (18 normal and 62 CAD subjects) by two different observers using the Yale-MQ software. Lower limits of normal (LLN) values and intra- and inter-observer variabilities of MBFs and MFRs were calculated for the assessment of quantitative precision. The Yale-MQ was compared with a commercially available software (Corridor 4DM) being used as a reference.

resultsThe Yale-MQ method provided precise assessments of LLNs of MBF and MFR. The global and regional MBFs and MFR quantified via Yale-MQ were correlated strongly with those via Corridor4DM (R ≥ 0.867). The intra- and inter-observer variabilities of MBFs and MFRs quantified via Yale-MQ were small (≤ 7.7% for MBFs and ≤ 10.0% for MFRs) with excellent correlations (R ≥ 0.980 for MBFs and R ≥ 0.976 for MFRs).

conclusionsThe new Yale-MQ software associated with the automatic processing scheme provides a highly reproducible clinical tool for precise quantification of MBF and MFR in patients with reliable LLN values.

Indexed as

Image Processing, Computer-AssistedMyocardial Perfusion ImagingPositron-Emission TomographyAdultAgedCohort StudiesCoronary Artery DiseaseFemaleFractional Flow Reserve, MyocardialHumansMaleMiddle AgedObserver VariationReproducibility of ResultsSoftwareDynamic 82Rb PETLower limit of normalMyocardial blood flowObserver variability

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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.