Table 1.
Dimensions | ||
strut dimension | a | 140 µm (Bailey 2009) |
strut coating thickness | δ | 50 µm (Mongrain, et al. 2007) |
strut embedment | Lp | no embedment ~ total embedment |
coronary artery wall thickness | Lx | 200 µm (Lovick and Edelman 1996) |
inter-strut distance | Ly | 1000 µm* |
Model parameters | ||
initial drug concentration in the coating | C0 | 10−5 M (Sakharov, et al. 2002) |
coating drug diffusivity | D1 | 0.01~1 µm2/s(Mongrain, et al. 2007) |
isotropic vascular drug diffusivity | D2 | 0.1~10 µm2/s (Levin, et al. 2004) |
transmural vascular drug diffusivity | D2x | 0.1~10 µm2/s |
circumferential vascular drug diffusivity | D2y | 1~100 D2x (Hwang and Edelman 2002) |
association rate constant (binding) | ka | 104 M−1s−1 (Zhang, et al. 2002) |
dissociation rate constant (unbinding) | kd | 0.01 s−1 |
resistance at perivascular boundary | Rwp | 5~100 s/µm (Hwang, et al. 2001) |
initial binding site concentration | S0 | 10−5 M (Levin, et al. 2004) |
partition coefficient at the perivascular boundary | κwp | 1 (Creel, et al. 2000) |
partition coefficient at the coating-arterial wall interface | κcw | 1 (Balakrishnan, et al. 2007) |
estimated for an eight-strut stent in a 3-mm wide coronary artery