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经颅多谱勒超声监测小儿先心病脑血流的临床价值探讨 被引量:1
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作者 布月青 董胜英 +1 位作者 周阔 高宏伟 《中国妇幼保健》 CAS 北大核心 2007年第26期3738-3740,共3页
目的:探讨经颅多谱勒超声(TCD)监测小儿先天性心脏病脑血流的临床意义。方法:67例先心患儿分为三组:青紫组(12例),活动后青紫组(38例),无青紫组(17例);正常对照组1组(20例)。应用TCD仪,常规探查颅内双侧大脑前、中、后动脉和颈内动脉、... 目的:探讨经颅多谱勒超声(TCD)监测小儿先天性心脏病脑血流的临床意义。方法:67例先心患儿分为三组:青紫组(12例),活动后青紫组(38例),无青紫组(17例);正常对照组1组(20例)。应用TCD仪,常规探查颅内双侧大脑前、中、后动脉和颈内动脉、椎动脉及基底动脉共11条动脉;探测参数有:脑动脉平均峰流速(Vm)、左右大脑半球血流速度对称性、频谱形态、血流声频、血管波动指数(PI);对异常的其中28例做动态TCD观察。结果:TCD异常表现为Vm增高或下降、左右半球血流速度不对称、涡流频谱、粗糙血流声频、PI下降等。青紫组12例均异常;活动后青紫组异常34例,正常4例;无青紫组异常2例,正常15例;正常对照组异常0例,正常20例。青紫组、活动后青紫组TCD异常率高于无青紫组和正常对照组(χ2=30.13,P<0.01),而前两者间及后两者间差异无显著性。χ2检验显示青紫组和活动后青紫组PI下降,Vm增高或下降、双半球血流速度差、涡流频谱、粗糙血流声频异常率均比活动后无青紫组和正常对照组高,P均<0.01;青紫组和活动后青紫组各项参数差异均无显著性(P>0.05)。结论:TCD简便、无创,有助于长期随访观察小儿先天性心脏病患儿病情及监测及其脑血管早期功能性变化,以指导临床治疗,为小儿先心外科择期手术创造最佳时机。 展开更多
关键词 先天性心脏病 脑血流手术 儿童超声检查 多谱勒 经颅
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Ultrasonic manifestations and age distribution of internal abdominal hernia in children
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作者 KUANG Bin YANG Chunjiang TANG Yi 《中国医学影像技术》 CSCD 北大核心 2024年第8期1204-1207,共4页
Objective To observe the ultrasonic manifestations and age distribution of internal abdominal hernia in children.Methods Data of 53 children with internal abdominal hernia confirmed by operation were retrospectively a... Objective To observe the ultrasonic manifestations and age distribution of internal abdominal hernia in children.Methods Data of 53 children with internal abdominal hernia confirmed by operation were retrospectively analyzed.The ultrasonic findings were observed,and the age distribution of children was analyzed.Results Among 53 cases,"cross sign"was observed in 22 cases(22/53,41.51%),and"hernia ring beak sign"was detected in 26 cases(26/53,49.06%)by preoperative ultrasound,according to which 21 cases were diagnosed as internal abdominal hernia,with the accuracy of 39.62%(21/53).Meanwhile,manifestations of intestinal obstruction were noticed in 48 cases(48/53,90.57%),and intestinal necrosis was considered in 22 cases(22/53,41.51%).Four cases were misdiagnosed as intestinal perforation,appendicitis,intestinal atresia and volvulus,each in 1 case.The onset age of postoperative adhesive band internal hernia was larger than that of mesenteric hiatal hernia(P<0.05),while no significant difference of onset age was found among other types of internal abdominal hernias(all P>0.05).Intestinal ischemic necrosis was found in 25 cases,while the incidence of intestinal necrosis in children aged≤1 year,>1 and≤3 years,>3 and≤7 years and those>7 years was 66.67%(12/18),33.33%(4/12),36.36%(4/11)and 41.67%(5/12),respectively.Conclusion The characteristic ultrasonic findings of internal abdominal hernia in children included"cross sign"and"hernia ring beak sign".Internal abdominal hernia in children under 1 year had high risk of intestinal necrosis. 展开更多
关键词 hernia abdominal CHILDREN ULTRASONOGRAPHY
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