16层CT血管造影对主动脉壁内血肿的诊断价值和技术优势

目的：探讨16层CT血管造影（16SCTA）对主动脉壁内血肿（AIH）的诊断价值和技术优势。方法对36例AIH患者行16SCTA检查,采用容积再现（VR）、多平面重组（MPR）、曲面重组（CPR）及最大密度投影（MIP）重组图像,明确血肿的部位和范围。结果36例AIH中Stanford A型3例,Stanford B型33例。合并穿透性动脉粥样硬化性溃疡（PAU）17例,占47.2%。合并胸腔积液12例,心包积液3例。结论16SCTA成像技术作为一种无创性的血管成像方法,具有安全、可靠和独特的优越性,能清晰显示病变特征和累及范围,是诊断AIH的首选检查方法。

The Value Diagnosis and Technical Advantages of 16-slice Computed Tomographic Angiography in Aortic Intramural Hematoma

Objective To investigate the 16-slice computed tomographic angiography （16SCTA） in the diagnosis value of aortic intramural hematoma （AIH） and technical advantage. Methods In 36 patients with aortic AIH were examined by 16SCTA.Images were reconstructed by volume rendering（VR）,multiplanar reconstruction （MPR）,curved planar reformation （CPR） and maximum intensity projection （MIP）.The location and extent of all cases were showed clearly. Results In 36 patients with AIH,3 patients was Stanford type A,33 patients were Stanford type B.Combined with penetrating atherosclerotic ulcer （PAU） 17 cases, accounting for 47.2%. In 12 cases with pleural effusion, 3 cases of pericardial effusion. Conclusion 16SCTA imaging as a noninvasive vascular imaging method, has the advantages of safety, reliability and unique, which can clearly display the lesion characteristics and extent, and it is the first choice for diagnosis of AIH.