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目的应用彩色多普勒超声观测肾结石的闪烁征与声影情况,探讨闪烁征对肾结石的诊断价值。方法以CT为金标准,将肾结石按大小分为3组,直径≤5mm组、5～10mm组和直径>10mm组,分别观察其闪烁征及声影显示情况。根据体质量指数(BMI)将患者分为正常组、超重组和肥胖组,观察肾结石闪烁征与患者BMI的关系。结果不同组中肾结石闪烁征的显示率均比声影显示率高,其中直径≤5mm和5～10mm组差异具有统计学意义(P<0.01),直径>10mm组差异无统计学意义(P>0.05)。肾结石闪烁征显示率与患者BMI无关(P>0.05)。结论肾结石闪烁征与结石大小及患者BMI无关。利用闪烁征这一指标,有利于肾小结石、隐匿性结石的检出与诊断。
Objective To observe the scintigraphy and sound shadow of renal calculi by color Doppler ultrasound and to explore the diagnostic value of scintigraphy on kidney stones. Methods CT was taken as the gold standard, and the renal stones were divided into 3 groups according to the size, the diameter ≤ 5mm group, the 5 ~ 10mm group and the diameter> 10mm group. The scintigraphy and the acoustic shadow were observed respectively. Patients were divided into normal group, overweight group and obesity group according to body mass index (BMI) to observe the relationship between scintigraphy and BMI in patients with kidney stones. Results The rates of scintigraphy of renal calculi in different groups were higher than those of acoustic images. The differences of diameter ≤5mm and 5 ~ 10mm were statistically significant (P <0.01), while those of diameter> 10mm were not statistically significant (P > 0.05). Nephrolithiasis scintigraphy showed no correlation with patient BMI (P> 0.05). Conclusion Scintigraphy of kidney stones has nothing to do with the size of stone and BMI in patients. The use of scintigraphy this indicator is conducive to the detection of kidney stones, occult stones and diagnosis.