Bakhach S, Grenier N, Berge J, Léauté-Labrèze C, Chateil J F, Douws C, Vergnes P, Taïeb A
Services de Radiologie, Groupe Hospitalier Pellegrin, 33076 Bordeaux.
J Radiol. 2001 Nov;82(11):1613-9.
Retrospective analysis of the morphologic and hemodynamic characteristics of hemangiomas in infants provided by color Doppler sonography.
94 hemangiomas were studied in 87 children separated into four classes of age (0-3 months, 3-6 months, 6-12 months, > 12 months). Eleven were followed with several examinations. Echogenicity, compared to normal subcutaneous tissues, and degree of vascularization were assessed qualitatively. Resistive index (RI) was measured in 78 cases.
All lesions presented as vascularized solid masses: 63% were hypoechoic, 16% hyperechoic and 21% mixed. All hypoechoic and mixed lesions showed higher vascularity than hyperechoic ones. Hyperechoic hemanigomas were more frequent in the fourth class of age. Mean resistive index was significantly higher in the first (0.61 +/- 0.14) and the fourth (0.6 +/- 0.14) classes of age than in the second (0.51 +/- 0.12) (p = 0.01 and < 0.03, respectively), and higher in the hyperechoic group (0.7 +/- 0.13) than in the hypoechoic group (0.53 +/- 0.11), (p < 0.01). Seven of 11 cases moved from hypoechoic to hyperechoic or mixed. Increase of resistive index with age was noted in 9/11 cases.
Superficial hemangiomas have typical but variable gray-scale, spectral and color flow sonographic patterns. These fluctuations are probably related to phases of evolution.
通过彩色多普勒超声对婴儿血管瘤的形态学和血流动力学特征进行回顾性分析。
对87例儿童的94个血管瘤进行研究，将其分为四个年龄组（0 - 3个月、3 - 6个月、6 - 12个月、> 12个月）。对其中11个血管瘤进行了多次检查。定性评估与正常皮下组织相比的回声性和血管化程度。对78例进行了阻力指数（RI）测量。
所有病变均表现为血管化实性肿块：63%为低回声，16%为高回声，21%为混合回声。所有低回声和混合回声病变的血管化程度均高于高回声病变。高回声血管瘤在第四年龄组更为常见。第一年龄组（0.61±0.14）和第四年龄组（0.6±0.14）的平均阻力指数显著高于第二年龄组（0.51±0.12）（p分别为0.01和<0.03），且高回声组（0.7±0.13）高于低回声组（0.53±0.11）（p<0.01）。11例中有7例从低回声转变为高回声或混合回声。11例中有9例出现阻力指数随年龄增加的情况。
浅表性血管瘤具有典型但可变的灰阶、频谱和彩色血流超声表现。这些波动可能与演变阶段有关。
