Value of three-dimensional contrast-enhanced ultrasound in diagnosing hepatic artery complications after liver transplantation
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摘要:
目的 探讨肝动脉三维灰阶超声造影(3D-CEUS)用于诊断肝移植术后肝动脉并发症的价值。 方法 对26例肝移植供体或怀疑肝动脉并发症的肝移植受体进行常规彩超、二维灰阶超声造影(2D-CEUS)和3D-CEUS检查。评价3D-CEUS的图像重建成功率及重建的肝动脉三维图像质量。 结果 26例患者3D-CEUS可显示21条肝动脉, 图像重建成功率81%。用3D-CEUS重建的肝动脉三维图血管连续性好, 可显示冠状面Z轴上的、细小或迂曲的分支或属支, 能帮助判定肝动脉段分支起源, 能明确地显示血管的空间关系。 结论 3D-CEUS检查具有三维图像直观、立体、清晰的特点, 在诊断肝移植术后肝动脉并发症中具有临床应用价值。 Abstract:Objective To investigate the value of three-dimensional contrast-enhanced ultrasound (3D-CEUS) in diagnosing the hepatic artery complications after liver transplantation. Methods A total of 26 liver transplant donors or recipients suspected with hepatic artery complications were examined by color Doppler ultrasound, two-dimensional contrast-enhanced ultrasound (2D-CEUS) and 3D-CEUS. The successful reconstruction rates of 3D-CEUS and the three-dimensional image quality of reconstructed hepatic arteries were evaluated. Results In the 26 patients, 21 hepatic arteries could be visualized with a successful reconstruction rate 81%. The three-dimensional images of hepatic arteries by 3D-CEUS were continuous. The coronal(Z-axle), fine or circuitous branches or tributaries could be visualized well. The segmental hepatic arteries origin could be determined and the spatial relationship of vessels could be visualized definitely. Conclusions The 3D-CEUS images are intuitive, three-dimensional and clear, and have clinical application value in diagnosing of hepatic artery complications after liver transplantation. -
图 1 1例供者的4种影像学检查的肝动脉表现
注: A图所示为正常肝固有动脉分支重建图,肝左动脉(left hepatic artery, LHA)、肝右动脉(right hepatic artery, RHA)及Ⅳ段(S4)动脉的连续性、位置关系清晰可见,可见Ⅳ段肝动脉由肝固有动脉起源,同一患者的二维图像(B图)难以准确判断各血管间的位置关系,未能显示Ⅳ段肝动脉起源,肝内分支仅呈节段显示。C图和D图分别为同一患者的CTA和DSA图,以DSA为对照,可以发现3D-CEUS重建图甚至比CTA显示的肝内分支更丰富、显示的血管段更长
Figure 1. Image findings of hepatic artery of a donor by 4 kinds of imageological examination
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