Application value of color Doppler flow imaging before and after intervention treatment of carotid ;stenosis

LI Ming-liang; YANG Rui-hai

doi:10.3969/j.1674-4055.2015.03.22

Abstract：Objective To discuss the application value of color Doppler flow imaging (CDFI) before and after intervention treatment of carotid stenosis. Methods The patients with ischemic cerebrovascular diseases (n=120, male 68, female 52, aged from 43 to 76 and average age=59.41±6.15) were chosen as observe group from Feb. 2009 to Aug. 2013, and other 120 healthy controls were chosen as control group. All groups were given routine CDFI for detecting pulse index (PI), resistance index (RI), peak systolic velocity (PSV), end-diastolic volume (EDV) and carotid artery intima-media thickness (CA-IMT). At the same time the observation group was given intervention treatment and prognosis and blood flow parameters were observed. Results CA-IMT increased [(1.06±0.32) mm vs. (0.75±0.15) mm] and incidence of plaque increased (59.2% vs. 12.5%) in observation group compared with control group (all P<0.05). Compared with control group, EDV decreased and PSV and RI increased [(11.68± 1.00) cm/s vs. (6.35±0.85) cm/s], [(34.56±4.52) cm/s vs. (58.44±5.12) cm/s] and [(0.68±0.20) vs. (0.89±0.22)] in observation group (all P<0.05). The imaging analysis showed thinner blood flow at vessel stenosis point with bright color and hourglass sign. The flow images at artery segments was dimmer than those in other segments in patients with severer stenosis. All patients in observation group were all undergone intervention treatment smoothly and cured and discharged from hospital, and their hemodynamic parameters were recovered to normal. Conclusion CDFI can effectively display hemodynamic changes and reflect curative effect in patients with carotid stenosis, which has important value in clinical use.