Color Doppler Ultrasound Of Superior Mesenteric Arterial Occlusive Disease Clinical Research

Objective:To study the Doppler parameters of superior mesenteric artery (SMA) and to provide useful information for developing appropriate diagnostic criteria for SMA occlusive diseases.Materials and Methods:Twenty-six cases of SMA stenosis group and 50 healthy controls were enrolled the study.5 Doppler parameters were measured under Doppler, including SMA diameter, peak systolic velocity (PSV), end diastolic velocity (EDV), resistance index (RI) and acceleration time (AT).The difference between the two groups were compared. Fasting and postprandial changes of the parameters were also compared among the same group.Results:SMA diameter in stenosis group (fasting 0.24±0.061cm; postprandial 0.26±0.058cm) was less than that of the control (fasting 0.59±0.078cm; postprandial 0.62±0.084cm P< 0.001); PSV in stenosis group (fasting 307.58±82.34cm/s; postprandial 365.12±74.56cm/s) was higher than that of the control (fasting 219.46±77.72cm/s; postprandial 294.66±88.56cm/s, P< 0.01); EDV in stenosis group (fasting 58.31±23.46cm/s; postprandial 100.63±15.24cm/s) was higher than that of the control(fasting 29.68±12.82cm/s; postprandial 58.23±22.98cm/s, P< 0.001). No significance was found in RI and AT between two groups (P>0.05).Postprandial PSV (365.12±74.56cm/s) in stenosis group was higher than fasting(307.58±82.34cm/s,P< 0.05); Postprandial EDV (100.63±15.24cm/s)was higher than fasting EDV (58.31±23.46cm/s P< 0.001) in stenosis group.Conclusion:Color Doppler ultrasonography can be used as the main screening method for SMA occlusive diseases. And the results provide useful information for developing appropriate diagnostic criteria for SMA occlusive diseases.