Evidence map›Paper›PMID 22993221›Full record

ArticleRadiology2012

Short-term mortality in acute pulmonary embolism: clot burden and signs of right heart dysfunction at CT pulmonary angiography.

Alessandro Furlan, Ayaz Aghayev, Chung-Chou H Chang, Amol Patil, Kyung Nyeo Jeon, Bumwoo Park, David T Fetzer, Melissa Saul, Mark S Roberts, Kyongtae T Bae

Abstract read
In one paragraph

Article in Radiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

85 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. A Promptable 3D-CT Foundation Model-Based Approach for Pulmonary Embolism.Cardiovascular and interventional radiology · 2026
    Article
  4. Article
  5. Influence of patients' sex on radiomics-based predictions of lung artery thrombus.International journal of computer assisted radiology and surgery · 2026
    Article
  6. Article
  7. Article
  8. Deep learning-based segmentation of acute pulmonary embolism in cardiac CT images.International journal of computer assisted radiology and surgery · 2026
    Article
  9. Prognostic potential of radiomics evaluation of lung artery thrombus for pulmonary embolism patients.International journal of computer assisted radiology and surgery · 2026
    Article
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  14. Observational
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25 more citing papers are in PubMed but not listed here.

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

10 authors.

Alessandro FurlanDepartment of Radiology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA 15213, USA.
Ayaz Aghayev
Chung-Chou H Chang
Amol Patil
Kyung Nyeo Jeon
Bumwoo Park
David T Fetzer
Melissa Saul
Mark S Roberts
Kyongtae T Bae

Funding

Identifying CT Imaging Biomarkers Associated with Prognosis of Pulmonary EmbolismR01HL095115 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BAE, KYONGTAE T · 2008 to 2012
$3.6M
NHLBI NIH HHS R01 HL095115
6 · The paper itself

Abstract

purposeTo assess the correlation between volumetric measurements of clot, semiquantitative clot burden indexes, and signs of right heart dysfunction at computed tomographic (CT) pulmonary angiography in patients with acute pulmonary embolism (PE) and to determine whether clot burden and signs of right heart dysfunction are associated with short-term mortality. MATERIALS AND

methodsThis retrospective study was institutional review board approved and HIPAA compliant. CT pulmonary angiographic studies (January 2007 through December 2007) with findings positive for PE were retrieved. Two readers evaluated signs of right heart dysfunction at CT pulmonary angiography, measured clot volume using a dedicated software program, and assessed clot burden using semiquantitative scores (Qanadli and Mastora). Spearman rank coefficient was used to investigate correlation between clot burden measures and signs of right heart dysfunction. Uni- and multivariate analyses were used to test association between CT pulmonary angiographic findings and short-term mortality.

resultsA total of 635 CT pulmonary angiographic studies from 635 patients (304 men, 331 women; mean age, 59 years) were included; 39 (6%) patients died within 30 days. Clot volume was strongly correlated with Qanadli score (ρ=0.841, P<.01) and Mastora score (ρ=0.863, P<.01) and moderately correlated (ρ=0.378, P<.01) with the ratio of right ventricle diameter to left ventricle diameter (RV/LV ratio). Among the pulmonary angiographic signs, only increase in RV/LV ratio (cut-off value, 1.0) was independently associated with short-term mortality in multivariate analysis.

conclusionClot volume strongly correlated with semiquantitative CT scores of clot burden, and greater clot volume was associated with higher incidence of right heart dilatation. Increase in RV/LV ratio was associated with short-term mortality; however, measures of clot burden were not.

Indexed as

AngiographyContrast MediaFemaleHumansLogistic ModelsMaleMiddle AgedPulmonary EmbolismRadiographic Image Interpretation, Computer-AssistedRetrospective StudiesSoftwareTomography, X-Ray ComputedTriiodobenzoic AcidsVentricular Dysfunction, RightContrast MediaioversolTriiodobenzoic Acids

Identifiers

PMID22993221
PMCPMC3447174

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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.