Evidence map›Paper›PMID 25777780›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2015

Feasibility and diagnostic accuracy of exercise treadmill nitrogen-13 ammonia PET myocardial perfusion imaging of obese patients.

Niti R Aggarwal, Adela Drozdova, J Wells Askew, Bradley J Kemp, Panithaya Chareonthaitawee

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2015. 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
1.9field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Review
  3. Review of cardiovascular imaging in the Journal of Nuclear Cardiology 2022: positron emission tomography, computed tomography, and magnetic resonance.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2023
    Review
  4. A Review of the Roles and Limitations of Noninvasive Imaging Methods for Investigating Cardiovascular Disease in Individuals with Obesity.Medical science monitor : international medical journal of experimental and clinical research · 2022
    Review
  5. The imperative to assess physical function among all patients undergoing stress myocardial perfusion imaging.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
  6. Feasibility of exercise treadmillJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
  7. Article
  8. Article
  9. Review
  10. Exercise PET: More insight or more complex?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2015
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Niti R AggarwalDivision of Cardiovascular Diseases, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
Adela DrozdovaInternational Clinical Research Center - Center of Molecular Imaging, St. Anne's University Hospital Brno, Brno, Czech Republic.
J Wells AskewDivision of Cardiovascular Diseases, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
Bradley J KempDepartment of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
Panithaya ChareonthaitaweeDivision of Cardiovascular Diseases, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA. chareonthaitawee.panithaya@mayo.edu.
Mayo Clinic · USWinnMed · USSt. Anne's University Hospital Brno · CZ

Funding

Mayo Clinic Center for Translational Science ActivitiesUL1TR000135 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$41.2M
NCATS NIH HHS UL1 TR000135
6 · The paper itself

Abstract

backgroundTreadmill exercise nitrogen-13 ((13)N)-ammonia positron emission tomography (PET) has logistical challenges and limited literature. We aimed to assess its feasibility, image quality, and diagnostic accuracy in obese and nonobese patients. METHODS AND

resultsBetween 2009 and 2012, 10,804 patients were referred for myocardial perfusion imaging, including 300 for treadmill PET, of whom 265 were included in this study. Treadmill testing and PET were performed using standard procedures. Image quality, perfusion, and summed stress score (SSS) were assessed. Invasive coronary angiography was performed within 90 days of PET in 43 patients. Mean ± SD body mass index (BMI) was 35.7 ± 7.7 kg/m(2) (range 19.5-63.5 kg/m(2)). Feasibility of treadmill (13)N-ammonia PET was 100%. Exercise duration was less for obese patients than nonobese patients (P < .001). Image quality was rated good for 96.9% of obese and 100% of nonobese patients. For all patients, sensitivity was 86.4% and specificity was 74.4%. Diagnostic accuracy did not change significantly with increasing BMI. SSS remained significant in predicting angiographic coronary artery disease after adjustment for age, sex, and Duke treadmill score.

conclusionsTreadmill (13)N-ammonia PET is highly feasible, yields good image quality, and has moderately high diagnostic accuracy in a small subset of obese and nonobese patients who are deemed able to perform treadmill exercise.

Indexed as

Nitrogen RadioisotopesAgedAmmoniaCoronary Artery DiseaseExercise TestFeasibility StudiesFemaleHumansMaleMiddle AgedMyocardial Perfusion ImagingObesityPositron-Emission TomographyRadiopharmaceuticalsReproducibility of ResultsSensitivity and SpecificityAmmoniaNitrogen RadioisotopesRadiopharmaceuticalsCoronary artery diseaseexercise stress testingmyocardial perfusion imagingobesitypositron emission tomography

Identifiers

PMID25777780
OpenAlexW2060131907

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.