【摘要】：目的:探討CT雙能量肺動(dòng)脈成像(CTPA)和肺灌注成像(DEPI)在評(píng)價(jià)肺栓塞(PE)嚴(yán)重程度及其所致右心功能不全中的價(jià)值。方法:對(duì)31例臨床擬診PE患者行CT雙能量掃描,采用dual-energy軟件獲得CTPA、DEPI圖像,記錄肺動(dòng)脈內(nèi)栓子的位置、數(shù)目、栓塞類型及肺內(nèi)灌注異常的程度、位置、數(shù)目,并計(jì)算肺栓塞指數(shù)和灌注缺損率。利用CTPA獲得右心功能相關(guān)指標(biāo)。分析Qanadli栓塞指數(shù)、灌注缺損率、右心室與左心室的最大橫徑比(RVd/LVd)及最大面積比(RVa/LVa)之間的相關(guān)性以及肺栓塞組和非栓塞組右心功能指標(biāo)間的差異性。結(jié)果:31例患者中20例顯示肺栓塞,8例無肺栓塞,2例因肺葉不張、1例因左側(cè)胸腔大量積液而剔除該組研究。Qanadli栓塞指數(shù)與肺灌注缺損率具有正相關(guān)性(r=0.826,P0.01)。Qanadli栓塞指數(shù)、灌注缺損率與RVd/LVd間具有較好的正相關(guān)性(r分別為0.610、0.600,P均為0.01);Qanadli栓塞指數(shù)、灌注缺損率與RVa/LVa間亦具有較好的正相關(guān)性(r分別為0.684、0.655,P均0.01)。栓塞組的RVd/LVd、RVa/LVa較非栓塞組增大(P0.05)。結(jié)論:CTPA和DEPI在一定程度上能提示肺栓塞的嚴(yán)重程度及右心功能的受損程度。
[Abstract]:Objective: to evaluate the value of CT dual energy pulmonary angiography (CTPA) and pulmonary perfusion imaging (DEPI) in evaluating the severity of pulmonary embolism (PE) and right ventricular insufficiency. Methods: Ct dual energy scanning was performed in 31 patients with clinically suspected PE. CTPA-DEPI images were obtained by dual-energy software. The location, number, type of embolism, degree, location and number of pulmonary perfusion abnormalities were recorded. Pulmonary embolism index and perfusion defect rate were calculated. The relevant indexes of right ventricular function were obtained by CTPA. The correlation of Qanadli embolization index, perfusion defect rate, right ventricular to left ventricular maximum transverse diameter ratio (RVD / LVd) and maximum area ratio (RVaR / LVa) and the difference of right ventricular function between pulmonary embolism group and non-embolism group were analyzed. Results among 31 patients, 20 cases showed pulmonary embolism, 8 cases without pulmonary embolism, 2 cases without pulmonary embolism, 1 case with left pleural effusion and 1 case with massive pleural effusion. Qanadli embolism index was positively correlated with pulmonary perfusion defect rate (rr 0.826 P 0.01) .Qanadli embolism index. There was a good positive correlation between the perfusion defect rate and Rvd / LVd (r = 0.610 ~ 0.600, P = 0.01), and there was also a good positive correlation between the perfusion defect rate and RVa- / LVa (r = 0.684 ~ 0.655g, P = 0.01). The RVD / LVdN RVaR / LVa in the embolization group was higher than that in the non-embolization group (P 0.05). Conclusion to some extent, the degree of pulmonary embolism and the damage of right heart function can be indicated by the ratio of% CTPA and DEPI.
【作者單位】： 徐州醫(yī)學(xué)院附屬醫(yī)院影像科;
【分類號(hào)】：R563.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 張燕,金征宇,張竹花,趙文敏,王l，

本文編號(hào)：2127042