Abstract: The purpose of this study was to investigate the diagnostic value of multislice spiral CT (MSCT) in diabetic foot of patients with diabetes mellitus type 2 (T2DM). 130 patients with T2DM were selected, including 35 patients with diabetic foot (22 patients with Wagner grade 0~2, 13 patients with grade 3~4, no grade 5), and 95 patients with simple T2DM, the MSCT was performed. In patients with diabetic foot, the posterior tibial artery, popliteal artery and femoral artery cross-sectional area were significantly smaller than those in patients with T2DM alone (P<0.05). The posterior tibial artery, popliteal artery and femoral artery cross-sectional area of Wagner class 3 to 4 diabetic foot patients were significantly smaller than Wagner class 0 to 2 diabetic foot patients (P<0.05). The area under ROC curve of posterior tibial artery, popliteal artery and femoral artery cross-sectional area in diagnosing Wagner's grade 3 to 4 diabetic feet were 0.685, 0.927 and 0.822, respectively. These results confirm that MSCT has certain application value in the diagnosis of diabetic foot severity in T2DM patients and is worthy of clinical use.

Key words: multislice spiral CT, diabetes mellitus type 2, diabetic foot, diagnostic value