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Table 1 Transverse Propagation Velocity (antegrade (A) and retrograde(R)) of Simulated Cardiac Action Potentials in 2-D Sheets at a Rol2 of 500 KΩ.

From: Boundary effects influence velocity of transverse propagation of simulated cardiac action potentials

Model Size

 

Stimulations

No. of Chains Responding

TPT ms

Transv. Velocity cm/sec

7 × 7

A

Entire A Chain

7

1.2

8.0

  

Cell A1 Only

7

1.5

6.4

 

R

Entire G Chain

7

1.2

8.0

  

Cell G1 Only

6 (A failed)

1.5

5.4

5 × 5

A

Entire A Chain

5

1.6

4.0

  

Cell A1 Only

5

1.7

3.8

 

R

Entire E Chain

5

1.7

3.8

  

Cell E1 Only

5

1.8

3.6

3 × 4

A

Entire A Chain

3

1.0

3.2

  

Cell A1 Only

3

1.1

2.9

 

R

Entire C Chain

3

1.2

2.7

  

Cell C1 Only

3

1.2

2.7

2 × 3

A

Entire A Chain

2

0.7

2.3

  

Cell A1 Only

2

0.8

2.0

 

R

Entire B Chain

2

0.9

1.8

  

Cell B1 Only

2

0.9

1.8

  1. A = antegrade R = retrograde
  2. Circuit Parameters: RBT = 10 KΩ Rjc = 25 MΩ (50 MΩ/2); Cj = 16 pF; Cs = 0.2 pF
  3. To improve the performance of the 7 × 7 model (for Rol2 of 500 KΩ), Rjc was decreased slightly to 24.5 MΩ (49.0 MΩ/2).