Evaluation of the Effects of Acupuncture on Blood Flow in Humans
with Ultrasound Color Doppler Imaging
(a) Ultrasound measurement of retrobulbar arteries. 13 MHz linier transducer is attached on the eyelid. Horizontal scans by CDI through the ocular globe showing the (b) ophthalmic artery (OA), (c) central retinal artery (CRA), and (d) temporal short posterior ciliary artery (SPCA). Left: image of the vessel and the position of the artery tracking. Right: Doppler flow and flow velocity (b, c, and d).