16排螺旋CT肺动脉造影在肺动脉栓塞诊断中的应用

目的探讨16排螺旋CT肺动脉造影(16-sSCTPA)在诊断肺动脉栓塞(PE)中的价值。方法对临床拟诊PE的13例患者行CT平扫和增强扫描,并通过多平面薄层重建(MPP)、最大密度投影(MIP)等图像后处理技术进行肺动脉成像(CTPA)。结果全部13例中,16-sSCTPA共显示肺动脉栓塞58支,其中发生在肺动脉主干3支、叶动脉18支、段动脉22支、亚段及亚亚段肺动脉15支。11例有多支肺动脉栓塞,2例仅单支栓塞。58支中,中央型29支,偏心型17支,闭塞型12支。结论16-sSCTPA可清晰显示亚亚段以上的肺动脉及其腔内栓子的部位和形态,同时具有快速、无创、准确性高的特点,可作为诊断PE的首选方法。

The role of 16-slice spiral CT pulmonary angiography in diagnosing of pulmonary embolism

Objective To explore the diagnostic value of 16-slice Spiral CT pulmonary angiography(16-sSTPA) in diagnosing of pulmonary embolism(PE). Methods Patients with pulmonary embolism were examinated with 16-detector row spiral CT pulmonary angiography. The volume data of all patients were reconstructed with the 3D techniques including multiplanar reconstruction (MPR) and maximum intensity projection(MIP). Results PE were detected in 13 patients,and 58 branches could be displayed clearly,including 3 main pulmonary arteries,18 lobar arteries,22 segmental vessels,15 subsegmental or sub-subsegmental arteries. Conclusion 16-slice spiral CT pulmonary angiography is non-invasive,fast,and highly sensitive for PE,and it would be the modality choice for the diagnosis of PE.