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目的探讨无创性影像学诊断方法在非青紫型先天性心脏病(CHD)外周肺血管形态学上的诊断价值。方法对200例合并外周肺血管狭窄的非青紫型CHD患儿(其中164例合并外周肺血管狭窄,36例合并术后残存外周肺血管狭窄),在手术前或心导管造影(ACG)前行CT血管造影(CTA)和(或)磁共振成像血管造影(MRA)检查,分别测量外周肺血管狭窄处内径,并与手术或ACG实测值进行配对样本T检验。结果 ACG、CTA和MRA均能清晰显示外周肺血管及其分支形态学发育情况,CTA和MRA对外周肺血管内径的测量值与手术或ACG实测值相似。结论 CTA、MRA是无创性评估外周肺血管形态学发育情况的良好影像学诊断方法,可以取代有创性ACG检查。
Objective To investigate the diagnostic value of noninvasive imaging diagnosis in peripheral pulmonary vascular morphology of non-cyanotic congenital heart disease (CHD). Methods A total of 200 children with non-cyanosis CHD with peripheral pulmonary vascular stenosis (164 cases with peripheral pulmonary vascular stenosis and 36 cases with residual peripheral pulmonary vascular stenosis after surgery) were performed preoperative or cardiac catheterization (ACG) CT angiography (CTA) and / or magnetic resonance angiography (MRA) were used to measure the diameter of the peripheral pulmonary vascular stenosis. T-test was performed on the paired samples with the surgical or ACG measurements. Results Both ACG, CTA and MRA could clearly show the morphological development of peripheral pulmonary vessels and their branches. The measurement of peripheral pulmonary vascular diameter by CTA and MRA was similar to the surgical or ACG measurements. Conclusion CTA and MRA are noninvasive imaging diagnostic methods to assess the development of peripheral pulmonary vascular morphology. They can replace invasive ACG.