Aly, S Peak systolic velocity ratio of 1.8 was found to be able to identify significant arterial stenosis in lower limb. [electronic resource] - Clinical radiology Nov 1998 - 860 p. digital Publication Type: Comment; Letter ISSN: 0009-9260 Standard No.: 10.1016/s0009-9260(98)80207-9 doi Subjects--Topical Terms: Arterial Occlusive Diseases--diagnosisBlood Flow VelocityHumansLeg--blood supply