摘要
目的 :测定正常成人肝组织超声背向散射积分 (IBS)值 ,以期为临床诊断与鉴别诊断肝脏弥漫性病变提供参考。方法 :应用HP5 5 0 0彩色超声仪 ,将 75例受试者分为三个年龄组 :Ⅰ组 4 0岁以下 ,Ⅱ组 4 0～ 5 9岁 ,Ⅲ组 6 0岁以上 ;分别检测每位受检者肝脏的近场、中场、远场IBS值。结果 :正常成人不同年龄组不同部位肝组织IBS测值分别是 :Ⅰ组 :近场 ( 2 2 .0 7± 3.6 2 )dB、中场 ( 18.91± 5 .0 0 )dB、远场 ( 13.5 5± 3.2 0 )dB ;Ⅱ组 :近场 ( 2 3.98± 2 .78)dB、中场 ( 2 2 .35± 4 .32 )dB、远场 ( 15 .34± 2 .90 )dB ;Ⅲ组 :近场 ( 2 9.5 0± 2 .70 )dB、中场 ( 2 4 .4 9± 3.0 6 )dB、远场 ( 17.81± 3.30 )dB。不同年龄组肝脏相应部位IBS值比较 :Ⅰ组与Ⅱ组对比 ,Ⅱ组与Ⅲ组对比均存在差异 (P <0 .0 5 ) ;正常成人肝脏不同取样部位IBS值比较 :近场与中场对比、中场与远场对比均存在显著差异 (P <0 .0 1) (正常成人IBS测值近场 2 5 .0± 4 .6 1dB ,中场 2 1.4 9± 4 .98dB ,远场 14 .0 5± 3.2 9dB)。结论 :正常成人肝组织IBS值随年龄的增加而增大 ,且从近场→中场→远场 ,IBS值逐渐减小。
Objective: To evaluate the ultrasonic integrated backscatter (IBS) of adult liver and provide reference for diagnosing and identifying hepatic diffuse diseases.Methods: 75 normal adults were divided into three groups: group I (<40 years old), group II (40-59 years old) and group III (>60 years old). Their IBS values were measured in the near field, middle field and far field respectively by HP Sonos 5500. Results:The IBS values in group I were 22.07±3.62 dB in near field, 18.91±5.0 dB in middle field and 13.55±3.2 dB in far field. In group II, they were 23.98±2.78 dB, 22.35±4.32 dB and 15.34±2.90 dB respectively.The values in group III were 29.50±2.70 dB, 24.49±3.06 and 17.81±3.30 dB respectively. The significant difference were found between group I and group II, and groupII and group III. The significant difference were also found between the near field and middle field, and between the middle field and far field( P <0.05).Conclusion: The IBS values of normal liver increases with age and decreases gradually from the near to far field.
出处
《西北国防医学杂志》
CAS
2004年第2期109-111,共3页
Medical Journal of National Defending Forces in Northwest China
关键词
超声背向散射积分
组织定征
肝组织
Ultrasonic integrated backscatter (IBS)
Tisssue characterization
Liver tissue
