Study The Diagnostic Value Of Contrast-Enhanced Ultrasoundto Renal Allograft Rejection

ObjectiveTo observe contrast-enhanced ultrasound characteristics of renal allograft rejection and analyse ultrasonic imaging and seek for the quantitative index of the diagnosis of renal allograft rejectionMethodChoose30cases with renal allograft in uropoiesis from September2010to July2011in shandong province main hospital, male25cases, female5cases, aged25-60years old, with an average age of35.4years, renal transplantation for6months. All cases will be divided into two groups according to the organization pathology, the clinical symptoms, the regular follow-up results, creatinine level whether increase10%in patients with renal transplantation than usual stable value. There are20cases of renal transplant patients with abnormal in group A and10cases in group B with normal, A group and B group are conducted normal routine ultrasound examination and contrast-enhanced ultr as-ound examination, survey imaging of microcirculation, and then utilize perfusion application analysis software to the interested region to analyse quantitative index, and then proceed statistical analysis.Results1、The cortex under capsule of renal transplantation gradually enhance with uniformity during contrast-enhanced ultrasound process in A group, the entire kidney is filled evenly by.ultrasound contrast agents2、Compared B group to A group,the area of multiple scattered、different sizes、boundary which is not clear and non-uniform can be seen in renal allograft cortex and medulla during contrast-enhanced ultrasound process. 3、Analysis indicator (ACU) of group A and B group is statistically significant differences improve (less than0.05p),so this index has important clinical significance in the diagnosis of graft rejection.ConclusionUltrasound imaging can dynamically detect the changes of the graft microcirculation perfusion; Quantitative index (ACU) for diagnosis renal allograft rejection provides a more reliable and objective imaging basis.