Evidence map›Paper›PMID 28812126›Full record

ArticleEuropean radiology2018

Myocardial iodine concentration measurement using dual-energy computed tomography for the diagnosis of cardiac amyloidosis: a pilot study.

Virgile Chevance, Thibaud Damy, Vania Tacher, François Legou, Fourat Ridouani, Alain Luciani, Hicham Kobeiter, Alain Rahmouni, Jean-François Deux

Abstract read
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In one paragraph

Article in European radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

12 citing papers in PubMed, 29 citations in OpenAlex.

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  9. Dual Energy Differential Phase Contrast CT (DE-DPC-CT) Imaging.IEEE transactions on medical imaging · 2020
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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.

Virgile ChevanceService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France. virgile.chevance@gmail.com.ORCID http://orcid.org/0000-0001-7102-5238
Thibaud DamyService de Cardiologie, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Vania TacherService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
François LegouService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Fourat RidouaniService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Alain LucianiService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Hicham KobeiterService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Alain RahmouniService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Jean-François DeuxService d'Imagerie Médicale, AP-HP (Assistance Publique-Hôpitaux de Paris, Créteil), Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, F-94000, France.
Université Paris-Est Créteil · FRAssistance Publique – Hôpitaux de Paris · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo measure myocardium iodine concentration (MIC) in patients with cardiac amyloidosis (CA) using dual-energy computed tomography (DECT).

methodsTwenty-two patients with CA, 13 with non-amyloid hypertrophic cardiomyopathies (CH) and 10 control patients were explored with pre-contrast, arterial and 5-minute DECT acquisition (Iomeprol; 1.5 mL/kg). Inter-ventricular septum (IVS) thickness, blood pool iodine concentration (BPIC), MIC (mg/mL), iodine ratio and extra-cellular volume (ECV) were calculated.

resultsIVS thickness was significantly (p < 0.001) higher in CA (17 ± 4 mm) and CH (15 ± 3 mm) patients than in control patients (10 ± 1 mm). CA patients exhibited significantly (p < 0.001) higher 5-minute MIC [2.6 (2.3-3.1) mg/mL], 5-minute iodine ratio (0.88 ± 0.12) and ECV (0.56 ± 0.07) than CH [1.7 (1.4-2.2) mg/mL, 0.57 ± 0.07 and 0.36 ± 0.05, respectively] and control patients [1.9 (1.7-2.4) mg/mL, 0.58 ± 0.07 and 0.35 ± 0.04, respectively). CH and control patients exhibited similar values (p = 0.9). The area under the curve of 5-minute iodine ratio for the differential diagnosis of CA from CH patients was 0.99 (0.73-1.0; p = 0.001). With a threshold of 0.65, the sensitivity and specificity of 5-minute iodine ratio were 100% and 92%, respectively.

conclusionFive-minute MIC and iodine ratio were increased in CA patients and exhibited best diagnosis performance to diagnose CA in comparison to other parameters. KEY POINT: • Dual-energy computed tomography can be used to detect cardiac amyloidosis • Five-minute myocardial iodine concentration and iodine ratio increase in cardiac amyloidosis • Among iodine parameters, 5-minute iodine ratio has the best diagnosis performance.

Indexed as

AgedAmyloidosisCardiomyopathiesCardiomyopathy, HypertrophicFemaleHumansIodineMaleMyocardiumPilot ProjectsRadiographic Image Interpretation, Computer-AssistedTomography, X-Ray ComputedIodineAmyloidosis/complicationAmyloidosis/diagnosisCardiac imaging techniquesDual-energy computed tomographyIodine map

Identifiers

PMID28812126
OpenAlexW2744407984

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.