Zhang Hong, Ma Yanhe, Song Zhenchun, Lv Jun, Yang Yapeng
Radiological Department, Tianjin Chest Hospital, Tianjin, P.R. China.
Medicine (Baltimore). 2017 Sep;96(37):e7926. doi: 10.1097/MD.0000000000007926.
This study is to investigate the predictive value of insufficient contrast medium filling (ICMF) in patients with acute pulmonary embolism (PE).A total of 108 PE patients were enrolled and divided into group A and group B according to the presence of ICMF. PE index and ventricul araxial lengths were measured. Heart cavity volumes were examined and right ventricle (RV) to left ventricle (LV) diameter ratio (RV/LV(d)) and volume ratio (RV/LV(V)) and right atrium (RA) to left atrium (LA) volume ratio (RA/LA(V)) were calculated and compared. Group A was further divided into A1 and A2 based upon the pulmonary vein filling degree and each index was compared.There were no significant differences between group A and B in general condition. PE index of group A was higher than that of group B. LA and LV in group A were smaller than that of group B, whereas RA in group A was larger than that of group B. RV/LV(d), RV/LV(V), and RA/LA(V) in group A were significantly larger than that of group B. Embolism index of group A2 was higher than that of groupA1, but without statistical significant difference. LA in group A2 was smaller than that of group A1, whereas RA, RV/LV(d), and RV/LV(V) were larger than that of group A1, all with significant differences.PE increased with serious ICMF in pulmonary veins could be used as an indicator for risk stratification in patients with acute PE.
本研究旨在探讨急性肺栓塞（PE）患者中对比剂充盈不足（ICMF）的预测价值。共纳入108例PE患者，根据是否存在ICMF分为A组和B组。测量PE指数和心室轴长度。检查心腔容积，并计算和比较右心室（RV）与左心室（LV）直径比（RV/LV(d)）、容积比（RV/LV(V)）以及右心房（RA）与左心房（LA）容积比（RA/LA(V)）。根据肺静脉充盈程度，A组进一步分为A1和A2组，并比较各项指标。A组和B组在一般情况方面无显著差异。A组的PE指数高于B组。A组中LA和LV小于B组，而RA大于B组。A组的RV/LV(d)、RV/LV(V)和RA/LA(V)显著大于B组。A2组的栓塞指数高于A1组，但无统计学显著差异。A2组的LA小于A1组，而RA、RV/LV(d)和RV/LV(V)大于A1组，均有显著差异。肺静脉中严重ICMF时PE增加可作为急性PE患者风险分层的指标。
