高频和低频超声显像联合应用对急性阑尾炎的诊断评价

Clinical Diagnosis of High and Low Frequency Ultrasound in Acute Appendicitis

目的探讨应用高频超声和低频超声显像诊断急性阑尾炎的价值和其测量准确性。方法急性阑尾炎患者60人,超声显像检查阑尾的大小、形态、阑尾壁的厚度、阑尾腔有无扩张、有无粪石、周围有无积液等;彩色多普勒血流显像(CDFI)观察阑尾壁的血流分布情况,高频超声显像测量阑尾的直径,低频超声显像测量阑尾的长度,与手术结果相对照,并作相关分析。结果与术中测值比较,高频超声显像能较准确地显示和测量阑尾直径(P>0.05),低频超声显像测量阑尾长度与术中测值误差较大(P<0.01),但相关性较好。结论高频和低频超声联合应用观察测量阑尾的大小,测值较准确,诊断价值较高。

Objective To study the value of high and low frequency ultrasound in patients with acute appendicitis. Methods 60 cases suspected acute appendicitis were examined and diagnosed by high frequency associated with low frequency ultrasound. All the cases were testified by surgery and pathology. The diameter and the length of appendixes were measured by high and low frequency ultrasound respectively. The value was compared with the measurement of surgery. Results The high frequency ultrasound could distinctly display and accurately measure the diameter of affected appendix. There was no significant difference on diameter measured by high frequency ultrasound and surgery（P 〉 0.05）. The length measured by low frequency ultrasound was lower than the measurement of surgery （P〈 0.01）. Conclusion High frequency associated with low frequency ultrasound can accurately measure the size of affected appendix and has high value in diagnosis of acute appendicitis.