Contrast-enhanced Ultrasound in Detecting Endoleaks with Failed Computed Tomography Angiography Diagnosis after XXXX Repair.

@entity1 @entity1070 @entity2996 @entity439 @entity86 @entity1028
BACKGROUND: @entity439 repair (EVAR) is one of the first-line therapies of @entity1028 . @entity86 is the most common complication of EVAR. Computed tomography angiography (CTA), which is routine for follow-up, has side effects (e.g., radiation) and also has a certain percentage of missed diagnosis. Preliminary studies on contrast-enhanced ultrasound (CEUS) have shown that the sensitivity of CEUS for detecting @entity1070 is no lower than that of CTA. To investigate the advantages of CEUS, we conducted CEUS examinations of post-EVAR cases in which CTA failed to detect @entity1070 or could not verify the type of @entity1070 . METHODS: Post-EVAR @entity1 , who were clinically considered to have @entity1070 and met the inclusion criteria were enrolled between March 2013 and November 2014. All of the @entity1 underwent @entity2996 ( @entity2996 ) and a CEUS examination. Size, location, microbubble dispersion, and hemodynamic characteristics of leaks were recorded. Comparison between the diagnosis of CEUS and @entity2996 was conducted using Fisher's exact test and clinical outcomes of all @entity1 were followed up. RESULTS: Sixteen @entity1 were enrolled, and 12 (75%) had endoleaks with verified types by CEUS. Among 12 cases of endoleaks were positive by CEUS, 10 were @entity2996 -positive, and the four CEUS-negative cases were all negative by @entity2996 . The diagnostic values of CEUS and @entity2996 were statistically different (P = 0.008). Six @entity1 with high-pressure endoleaks received endovascular re-intervention guided by CEUS results. One @entity1 with @entity1070 had open surgery when endovascular repair failed. CONCLUSIONS: CEUS is a new, safe, and effective means for detection of endoleaks post-EVAR. This technique can be used as a supplement for routine CTA follow-up to provide more detailed information on @entity1070 and its category.
