Evidence map›Paper›PMID 19774376›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2010

Coronary calcium score scans for attenuation correction of quantitative PET/CT 13N-ammonia myocardial perfusion imaging.

Nina Burkhard, Bernhard A Herzog, Lars Husmann, Aju P Pazhenkottil, Irene A Burger, Ronny R Buechel, Ines Valenta, Christophe A Wyss, Philipp A Kaufmann

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In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 29 citations in OpenAlex.

  1. The power of zero calcium in 82-Rubidium PET irrespective of sex and age.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2023
    Article
  2. Value of 12-lead electrocardiogram to predict myocardial scar on FDG PET in heart failure patients.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  3. Review
  4. Interpolated average CT for cardiac PET/CT attenuation correction.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2016
    Article
  5. Article
  6. Article
  7. Single low-dose CT scan optimized for rest-stress PET attenuation correction and quantification of coronary artery calcium.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2015
    Article
  8. Article
  9. Article
  10. Article
  11. Hypodense regions in unenhanced CT identify nonviable myocardium: validation versus 18F-FDG PET.European journal of nuclear medicine and molecular imaging · 2012
    Article
  12. PET: Is myocardial flow quantification a clinical reality?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2012
    Review
  13. Article
  14. Review
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

9 authors at 2 institutions in 1 country.

Nina BurkhardCardiac Imaging, University Hospital Zurich, NUK C42, Ramistrasse 100, 8091, Zurich, Switzerland.
Bernhard A Herzog
Lars Husmann
Aju P Pazhenkottil
Irene A Burger
Ronny R Buechel
Ines Valenta
Christophe A Wyss
Philipp A Kaufmann
University Hospital of Zurich · CHUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to evaluate whether ECG-triggered coronary calcium scoring (CCS) scans can be used for attenuation correction (AC) to quantify myocardial blood flow (MBF) and coronary flow reserve (CFR) assessed by PET/CT with (13)N-ammonia.

methodsThirty-five consecutive patients underwent a (13)N-ammonia PET/CT scan at rest and during standard adenosine stress. MBF values were calculated using AC maps obtained from the ECG-triggered CCS scan during inspiration and validated against MBF values calculated using standard non-gated transmission scans for AC. CFR was calculated as the ratio of hyperaemic over resting MBF. In all 35 consecutive patients intraobserver variability was assessed by blinded repeat analysis for both AC methods.

resultsThere was an excellent correlation between CT AC and CCS for global MBF values at rest (n = 35, r = 0.94, p < 0.001) and during stress (n = 35, r = 0.97, p < 0.001) with narrow Bland-Altman (BA) limits of agreement (-0.21 to 0.10 ml/min per g and -0.41 to 0.30 ml/min per g) as well as for global CFR (n = 35, r = 0.96, p < 0.001, BA -0.27 to 0.34). The excellent correlation was preserved on the segmental MBF analysis for both rest and stress (n = 1190, r = 0.93, p < 0.001, BA -0.60 to 0.50) and for CFR (n = 595, r = 0.87, p < 0.001, BA -0.71 to 0.74). In addition, reproducibility proved excellent for global CFR by CT AC (n = 35, r = 0.91, p < 0.001, BA -0.42-0.58) and CCS scans (n = 35, r = 0.94, p < 0.001, BA -0.34-0.45).

conclusionUse of attenuation maps from CCS scans allows accurate quantitative MBF and CFR assessment with (13)N-ammonia PET/CT.

Indexed as

AmmoniaMyocardial Perfusion ImagingPositron-Emission TomographyTomography, X-Ray ComputedAgedAged, 80 and overCalciumCoronary CirculationCoronary VesselsElectrocardiographyFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedNitrogen RadioisotopesAmmoniaCalciumNitrogen Radioisotopes

Identifiers

PMID19774376
OpenAlexW1981625228

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.