Author + information
To compare the different features of contrast enhanced ultrasound(CEUS) and CT angiography (CTA) in abdominal aortic remodeling after thoracic endovascular aortic repair (TEVAR) of DeBakey type III aortic dissection(AD), to investigate the application value of CEUS in the follow-up of DeBakey type III AD after TEVAR.
CEUS was performed in 28 patients with DeBakey type III AD after TEVAR, which 8 cases type IIIa (simple type) was not involved of abdominal aorta,20 cases IIIb(complex type) is involved in the abdominal aorta, all patients were performed CTA examination of aorta. The functional and morphological changes of abdominal aortic remodeling were observed by two methods in DeBakey type III AD after TEVAR.
There were no new ruptures of the abdominal aorta in 8 cases type IIIa AD, 20 cases of type IIIb AD showed the situation of ruptures, thrombosis, trues and false lumen after 3 months of follow-up. CEUS was less than CTA in detect the number of ruptures (P<0.05), CEUS and CTA results were similar in the measurement of true and false lumen diameter (P>0.05), but CEUS clearly showed the hemodynamic characteristics of abdominal aortic intimal tear, the size and position of rupture, moving blood flow of rupture, and true or false lumen, which provided more accurate data for the long term abdominal aortic remodeling of DeBakey type III AD after TEVAR.
CEUS and aortic CTA can play a complementary role in DeBakey type III AD after TEVAR of long-term follow-up, it is worth promoting.