Objective
To evaluate peripheral hemodynamics using the doppler ultrasound in the diabetic patients.

Method
We measured mean blood flow velocity (MBFV), resistance index (RI), pulsatility index(PI) in the dorsalis pedis artery (DPA), posterior tibial artery (PTA), and radial artery (RA) from 18 normal controls (n=36), 17 diabetes patients without neuropathy (n=34), and 21 diabetes patients with neuropathy (n=42) by use of Angiodine 2 Doppler system operating at 8 MHz frequency.

Results
MBFV of all the examined arteries increased significantly in the diabetes with neuropathy in comparison to controls and the diabetes without neuropathy (p＜0.05). RI and PI of DPA and PTA decreased significantly in the diabetes with neuropathy in comparison to controls and diabetes without neuropathy (p＜0.05). The blood flow velocity profile was changed from triphasic to monophasic pattern in the diabetes with neuropathy in DPA and PTA.

Conclusion
The Doppler ultrasound is considered as a useful tool for screening change of peripheral blood flow in the diabetic patients with neuropathy.