The assessment of acute pulmonary embolism severity using CT angiography features

International Journal of Emergency Medicine

article

Shayganfar, Azin¹  Hajiahmadi, Somayeh¹  Astaraki, Mohsen¹  Ebrahimian, Shadi¹ 

[1] Department of Radiology, Isfahan University of Medical Sciences;Al-Zahra Hospital

关键词: Pulmonary embolism;    Right heart;    Computed tomography;    Angiography;   

DOI  :  10.1186/s12245-020-00272-2

学科分类：工业工程学

来源: Springer

【 摘 要 】

This study was conducted to detect the association between radiologic features of CT pulmonary angiography (CTPA) and pulmonary embolism severity index (PESI). A total of 150 patients with a definite diagnosis of PE entered the study. The CTPA feature including obstruction index, pulmonary trunk size, presence of backwash contrast, septal morphology, right ventricular (RV) and left ventricular (LV) dimensions, and RV/LV ratio were examined. The severity of the PE was estimated using PESI. The association between CTPA indices and PESI was measured. Statistical analysis was conducted using the SPSS software. P value < 0.05 was considered as statistically significant. A positive correlation was detected between the obstruction index and PESI (r = 0.45, P < 0.05). Moreover, PESI was significantly higher in patients with a more dilated pulmonary trunk (r = 0.20, P < 0.05). The backwash contrast and abnormal septal morphology were significantly more common among patients with higher PESI (P < 0.05). However, no significant correlation was detected between RV, LV, RV/LV, and PESI. The most predictor of high-risk PE was dilated pulmonary trunk with an odds ratio of 4.4. Higher Obstruction index, dilated pulmonary trunk, presence of backwash contrast, and an abnormal septal morphology can be associated with a higher PESI.

【 授权许可】

CC BY|CC0