ArticlePloS one2017
Accuracy and reproducibility of CT right-to-left ventricular diameter measurement in patients with acute pulmonary embolism.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 41 citations in OpenAlex.
- Short-term outcomes of ultrasound-assisted catheter-directed thrombolysis and mechanical thrombectomy in management of intermediate-risk pulmonary embolism.Journal of vascular surgery. Venous and lymphatic disorders · 2026Article
- Prognostic Value of Right Ventricular Echocardiography on Mortality in Intermediate-Risk Hispanic Patients with Acute Pulmonary Embolism.The International journal of angiology : official publication of the International College of Angiology, Inc · 2025Article
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- Development and validation of a predictive model combining radiomics and deep learning features for spread through air spaces in stage T1 non-small cell lung cancer: a multicenter study.Frontiers in oncology · 2025Article
- Computed tomography-based radiomics model to predict adverse clinical outcomes in acute pulmonary embolism.Journal of thrombosis and thrombolysis · 2024Article
- Intervention Versus Medical Management of Pulmonary Embolism.Methodist DeBakey cardiovascular journal · 2024Review
- Impact of obstructive sleep apnea on outcomes of pulmonary embolism: A systematic review and meta‑analysis.Experimental and therapeutic medicine · 2023Article
- Delayed mechanical thrombectomy after systemic thrombolysis in massive unilateral pulmonary thromboembolism.BMJ case reports · 2022Article
- Spontaneous Escherichia coli Empyema Thoracis: An Unusual Occurrence in a Non-cirrhotic, Immunocompetent Individual.Cureus · 2022Article
- Teaching Nonradiologists to Identify Right Heart Strain on Computed Tomography Scans of Acute Pulmonary Embolism.ATS scholar · 2022Article
- Article
- Loss of Pulmonary Vascular Volume as a Predictor of Right Ventricular Dysfunction and Mortality in Acute Pulmonary Embolism.Circulation. Cardiovascular imaging · 2021Article
- Automated calculation of the right ventricle to left ventricle ratio on CT for the risk stratification of patients with acute pulmonary embolism.European radiology · 2021Article
- Outcomes of catheter-directed interventions in high-risk pulmonary embolism-a retrospective analysis.Acta anaesthesiologica Scandinavica · 2021Article
- Assessing the severity of pulmonary embolism among patients in the emergency department: Utility of RV/LV diameter ratio.PloS one · 2020Article
- Article
- Right-to-left Ventricular Diameter Ratio At Computed Tomographic Pulmonary Angiography in Patients with Acute Pulmonary Embolism and Obstructive Sleep Apnea.Clinical medicine insights. Circulatory, respiratory and pulmonary medicine · 2020Article
- Correlating computed tomography pulmonary angiography signs of right ventricular strain in pulmonary embolisms to clinical outcomes.Annals of thoracic medicineArticle
- Accuracy of Medical Student Measurements of CT Right-to-Left Ventricular Diameter in Patients with Acute Pulmonary Embolism.Journal of medical education and curricular developmentArticle
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRight ventricular (RV) dysfunction caused by acute pulmonary embolism (PE) is associated with poor short- and long-term prognosis. RV dilatation as a proxy for RV dysfunction can be assessed by calculating the right-to-left ventricle diameter (RV/LV) ratio on standard computed tomography pulmonary angiography (CTPA) images. It is unknown whether dedicated training is required to accurately and reproducibly measure RV/LV ratio therefore we aimed to assess these parameters in residents in internal medicine without experience in CTPA reading.
methodsCTPA images of 100 patients with PE were assessed by three residents after single instruction, and one experienced thoracic radiologist. Maximum diameters were evaluated in the axial view by measuring the distance between the ventricular endocardium and the interventricular septum, perpendicular to the long axis of the heart. RV dilatation was defined as a ratio of ≥1.0. Interobserver accuracy and reproducibility was determined using Kappa statistics, Bland-Altman analysis and Spearman's rank correlation.
resultsThe kappa statistic for the presence of RV dilatation of the residents compared to the experienced radiologist ranged from 0.83-0.94. The average interobserver difference in calculated RV/LV ratio's (±SD) between the three residents was: -0.01 (SD0.11), 0.07 (SD0.14) and 0.06 (SD0.18) with an overall mean RV/LV diameter ratio of 1.04. In line with this, Spearman's rank correlation coefficients were 0.92, 0.88 and 0.85 respectively indicating very good correlation (p<0.01 for all).
conclusionAfter simple instruction, RV/LV diameter ratio assessment on CTPA images by clinical residents is accurate and reproducible, which is of help in identifying PE patients at risk.
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