The authors practiced carotis duplex scanning examinations on 60 patients having lower limb artery disease. The patients were grouped according to, having cervical bruit or not. In the first group 100% had stenosis while in the second group had only 13.3%. Furthermore the stenosis--plack were analysed according to the severity of the lower limb artery disease. The severity of stenosis can be found in group "A" (bruit exists) and group "B" (no bruit) accordingly to the Fontaine stages. Stenosis higher then 50% was found in group "A" 3 in Fontaine stage II, and 10 in Fontaine stage III. While in group "B" there were no stenosis in Fontaine stage II, and 4 in Fontaine stage III. Out of thet not exceeded 3, 50%, and 1 was subtotal. Likewise, difference can be found of the presence of placks partly in the two groups, partly in the point of view of the stages of Fontaine. There are in group "A" 23 cases with 48 placks, in group "B" 14 cases with 23 placks. Among the patients of group "A" in 10 cases with were in Fontaine II, and 13 in Fontaine III stage. In group "B" 5 were in Fontaine II, and 9 in Fontaine III stage. Authors are calling the attention, that according to their own data, and the sensitivity of duplex scanning this is the most proper examination for recognising the carotid artery sclerosis which is associated with lower limb artery disease.