Nonmassive acute pulmonary embolism: evaluation of the impact of pulmonary arterial wall distensibility on the assessment of the CT obstruction score
| Autor: | Martine Remy-Jardin, Alain Duhamel, Andrei-Bogdan Gorgos, Jacques Remy, Jean-Baptiste Faivre, Julien Bigot |
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| Rok vydání: | 2010 |
| Předmět: |
Pulmonary and Respiratory Medicine
Adult Male medicine.medical_specialty Iohexol Contrast Media Pulmonary Artery Severity of Illness Index Electrocardiography Internal medicine Severity of illness Pulmonary arterial wall medicine Humans Radiology Nuclear Medicine and imaging In patient Pulmonary wedge pressure Central pulmonary arteries Aged Retrospective Studies Aged 80 and over Analysis of Variance medicine.diagnostic_test business.industry Reproducibility of Results Middle Aged medicine.disease Pulmonary embolism Radiographic Image Enhancement Acute Disease Cardiology Female business Pulmonary Embolism Tomography X-Ray Computed medicine.drug |
| Zdroj: | Journal of thoracic imaging. 25(1) |
| ISSN: | 1536-0237 |
| Popis: | To evaluate the impact of pulmonary arterial wall distensibility on the assessment of a computed tomography (CT) score in patients with nonmassive pulmonary embolism (PE) (ie, Mastora score).The arterial wall distensibility of five central pulmonary arteries (pulmonary artery trunk, right and left main pulmonary arteries, right and left interlobar pulmonary arteries) was studied on ECG-gated CT angiographic studies of the chest in 15 patients with no pulmonary arterial hypertension (group 1; mean pulmonary artery pressure: 17.2 mm Hg) and 9 patients with nonmassive PE (group 2), using 2D reconstructions at every 10% of the R-R interval.The systolic and diastolic reconstruction time windows of the examined arteries were identical in the 2 groups, obtained at 20% and 80% of the R-R interval, respectively. No statistically significant difference was observed between the mean values of the pulmonary arterial wall distensibility between the 2 groups, varying between 20.5% and 24% in group 1 and between 23.3% and 25.9% in group 2. The coefficients of variation of the average arterial surfaces were found to vary between 4.30% and 6.50% in group 1 and 4.2% and 8.4% in group 2. Except the pulmonary artery trunk in group 2, all the intraclass correlation coefficients were around 0.8 or greater than 0.8, that is the cutoff for good homogeneity of measurements.The pulmonary arterial wall systolic-diastolic distensibility does not interfere with the assessment of a CT obstruction score in the setting of nonmassive PE. |
| Databáze: | OpenAIRE |
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