Aim To compare the dilation resistance during stents implantation between different types of non-clacified coronary plaques by retrospectively investigating patients who received 64-slice spiral computed tomography angiography before coronary stents implantation.Methods 116 patients who received 64-slice spiral computed tomography angiography before coronary stents implantation from 2007 to 2012 were selected. Non-calcified coronary plaques were divided into positive remodeling group and non-positive remodeling group based on remodeling index. Clinical features, lipid cores, pre-dilatation balloon size and filling pressure, and stent size and pressure were compared.Results High-sensitivity C-reactive protein (hs-CRP) levels were higher in positive remodeling group. The lipid cores were more commonly observed in positive remodeling group. In patients who have typical symptom, unstable angina was more common in positive remodeling group, and stable angina was more common in non-positive remodeling group. The proportion of administration of pre-dilatation was similar in two groups. The size and filling pressure of pre-dilation ballons were similar in two groups. The size of stents was similar in two groups. Stent release pressure in positive remodeling group was significantly lower than that observed in non-positive remodeling group (1 121.64±213.68 kPa vs 1 232.56±201.95 kPa, P<0.01).Conclusions Compared with non-positive remodeling group, the lipid cores were more common in positive remodeling group, therefore the dilation resistance was lower in positive remodeling group during stents expansion. Preoperative identification of lesion remodeling index was helpful for choosing direct stent implantation rightly.