基于CT横断位测量的髂静脉受压率与腹壁脂肪厚度相关性的临床研究

Clinical Study of the Correlation Between the Compression Rate of Iliac Vein and Subcutaneous Abdominal Fat Thickness: Based on Axial CT Scanning

目的探讨左侧髂总静脉受压程度稳定性及其与腹壁脂肪厚度之间的相关性。方法收集116例2年内进行两次腹、盆腔CT增强检查的无下肢静脉疾病症状者,分别测量、比较分析两次检查中左髂总静脉受压率的变化程度及腹壁脂肪厚度,并进行Pearson相关分析判断左髂总静脉受压率与腹壁脂肪厚度的相关性。结果同一患者的两次检查中,左髂总静脉受压率平均值分别为41.35%±15.79%、41.56%±17.36%,两者无明显统计学差异(t=-0.178,P=0.859)。两次CT检查测得患者腹壁脂肪层厚度平均值分别为(7.58±0.70) mm、(8.18±0.76) mm,差异无统计学意义(t=1.196,P=0.234)。腹壁脂肪厚度与LCIV受压率的Person相关分析结果显示两者无明显相关性。结论左髂总静脉受压程度与腹壁脂肪厚度没有明显相关性,减肥可能无助于减轻左髂总静脉受压。

Objective To investigate the stability of left common iliac vein compression and its correlation with the thickness of subcutaneous abdominal fat. Methods This retrospective study included 116 patients without signs of lower extremity venous diseases who underwent contrast-enhanced CT of the abdominal and pelvic cavity twice within two year. The degree of venous compression and the subcutaneous abdominal fat thickness were calculated and compared in two examinations. Moreover, the relationship between the compression rate of the LCIV and the subcutaneous abdominal fat thickness was analyzed by Pearson correlation analysis. Results In the two examinations of the same patient, the mean compression rate of the LCIV were 41.35%±15.79% and 41.56%±17.36% respectively, and there was no significant difference(t=-0.178,P=0.859). The mean thickness of subcutaneous abdominal fat were(7.58±0.70) mm and(8.18±0.76) mm, and there was no significant difference(t=1.196, P=0.234). Person correlation analysis showed that there was no significant correlation between the compression rate of the LCIV and the thickness of subcutaneous abdominal fat. Conclusion The degree of compression of the left common iliac vein has no significant correlation with the thickness of subcutaneous abdominal fat, so losing weight may not help to reduce the compression rate of the LCIV.