增强MR三维水选择软骨扫描评估先天性并指畸形患儿手部血管

目的 应用对比剂增强三维水选择软骨扫描（CE-3D-WATSc）观察先天性并指畸形（CSM）患儿手部血管。方法 对接受并指分离术治疗的12例CSM患儿术前均行CE-3D-WATSc，观察患侧指掌侧总动脉及其分叉位置、指掌侧固有动脉走行及其发育情况，并与术中所见进行对比。结果 CE-3D-WATSc于12例均显示患侧手部指掌侧总动脉，10例分叉位置正常，2例分叉位置轻度升高至近节指骨约1/3处，均与术中观察结果完全符合。CE-3D-WATSc显示10例患侧指掌侧固有动脉，发育正常9例、细小1例，2例未显示；术中观察结果示指掌侧固有动脉12例，其中2例CE-3D-WATSc未显示者发育极差，呈细丝状。结论 CE-3D-WATSc对术前评估CSM患儿手部血管情况具有一定应用价值。

Contrast-enhanced three-dimensional water selective cartilage scan assessment of hand vessels in children with congenital syndactyly malformation

Objective To observe vessels of hand for congenital syndactyly malformation (CSM) in children with contrast-enhanced three-dimensional water selective cartilage scan (CE-3D-WATSc). Methods Twelve children with CSM underwent CE-3D-WATSc before separation surgery of syndactyly were included. The bifurcated positions of common palmar digital arteries, the development and trend of proper palmar digital arteries were observed. The consequences of CE-3D-WATSc and intraoperative observation were compared and analyzed. Results The common palmar digital arteries of hands in 12 cases were shown with CE-3D-WATSc, of which the bifurcated positions were normal in 10 cases and were slightly elevated to about 1/3 of proximal phalanges in 2 cases, which were completely consistent with the intraoperative observation results.The proper palmar digital arteries were displayed with CE-3D-WATSc in 10 cases, among which 9 were normal development and 1 was small, while not shown in 2 cases. During surgical operation, the proper palmar digital arteries were found in 12 cases, while being filamentous in 2 cases that not shown with CE-3D-WATSc. Conclusion CE-3D-WATSc has some application values in evaluating vessels of hand for CSM in children before surgical operation.