ArticleRadiology. Cardiothoracic imaging2020
CT Pulmonary Angiography for Risk Stratification of Patients with Nonmassive Acute Pulmonary Embolism.
Article in Radiology. Cardiothoracic imaging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- D-Dimer/Fibrinogen Ratio and Radiological Severity Scores in Acute Pulmonary Embolism: Is There Room for a New Thrombus-Burden Marker?Diagnostics (Basel, Switzerland) · 2025Article
- Diagnostic Performance of Salusins in Acute Pulmonary Embolism: A Prospective Observational Study.Diagnostics (Basel, Switzerland) · 2025Article
- Article
- The Role of the Pulmonary Artery Obstruction Index Ratio in Predicting the Clinical Course of Pulmonary Embolism.Journal of clinical medicine · 2025Article
- Does Adding the Pulmonary Infarction and Right Ventricle to Left Ventricle Diameter Ratio to the Qanadli Index (A Combined Qanadli Index) More Accurately, Predict Short-Term Mortality in Patients with Pulmonary Embolism?The Indian journal of radiology & imaging · 2023Article
- Acute Pulmonary Embolism in COVID-19: A Potential Connection between Venous Congestion and Thrombus Distribution.Biomedicines · 2022Article
- Role of CT and MRI in Cardiac Emergencies.Tomography (Ann Arbor, Mich.) · 2022Review
- Acute Pulmonary Embolism: Prognostic Role of Computed Tomography Pulmonary Angiography (CTPA).Tomography (Ann Arbor, Mich.) · 2022Review
- Lobar pulmonary perfusion quantification with dual-energy CT angiography: Interlobar variability and relationship with regional clot burden in pulmonary embolism.European journal of radiology open · 2022Article
- Vascular Abnormalities Detected with Chest CT in COVID-19: Spectrum, Association with Parenchymal Lesions, Cardiac Changes, and Correlation with Clinical Severity (COVID-CAVA Study).Diagnostics (Basel, Switzerland) · 2021Article
- Refining Risk Stratification in Nonmassive Acute Pulmonary Embolism.Radiology. Cardiothoracic imaging · 2020Article
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5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
purposeTo investigate the prognostic value of an integrative approach combining clinical variables and the Qanadli CT obstruction index (CTOI) in patients with nonmassive acute pulmonary embolism (PE). MATERIALS AND
methodsThis retrospective study included 705 consecutive patients (mean age, 63 years; range, 18-95 years) with proven PE. Clot burden was quantified using the CTOI, which reflects the ratio of fully or partially obstructed pulmonary arteries to normal arteries. Patients were subdivided into two groups according to the presence (group A) or absence (group B) of preexisting cardiopulmonary disease. Thirty-day and 3-month mortality was evaluated. CTOI thresholds of 20% and 40% were used to stratify patients regarding outcome (low, intermediate, and high risk). The predictive value of CTOI was assessed through logistic regression analysis.
resultsAnalysis included 690 patients (mean age, 63.3 years ± 18 [standard deviation]) with complete follow-up data: 247 (36%) in group A and 443 (64%) in group B. The mean CTOI was 23% ± 19, 30-day mortality was 9.7%, and 3-month mortality was 11.6%. Three-month mortality was higher in group A than in group B (17.8% and 8.1%, respectively;
conclusionCTOI predicted outcome in this cohort of patients with PE and no cardiopulmonary disease, and it may provide a simple single-examination-based approach for risk stratification in this subset of patients.© RSNA, 2020See also the commentary by Kay and Abbara in this issue.
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