[Roentgenosurgery for aortic coarctation and open arterial duct with intravascular ultrasonic examination]

Forty-five patients (32 with open arterial duct and 13 with aortic coarctation) were examined. Forty-nine intravascular ultrasonic examinations were performed, qualitative and quantitative analysis of 139 vascular segments was carried out. Despite the fact that mean morphometric indices of open arterial duct and aorta in angiography and intravascular ultrasonic examination had no significant difference, real confidence of the o data was seen only in 13.3% cases for open arterial duct an in 16.7% cases--for aortic coarctation. In 37.5 and 50% patients, respectively, difference in the dimensions was so significant that dictated choice of instruments with difference size. Roentgenoendovascular surgeries were performed in 23 patients with open arterial duct and in 12--with aortic coarctation. Choice of instruments parameters based on data of intravascular ultrasonic examination provided safer and more efficient procedures.