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Table 4 Area of prostate (mm2) observed with MRI and US at the same level

From: Comparison of ablation defect on MR imaging with computer simulation estimated treatment zone following irreversible electroporation of patient prostate

Patient

Axial cross-sectional area of prostate (mm2)

Axial cross-sectional area of ablation zone (mm2)

MRI

US

MRI

Simulation

1

2055

1916

590

585

2

1966

1877

849

735

3

1420

1633

210

340

4

888

895

322

449

5

1309

1377

701

624

6

1741

1682

569

461

Mean (SD)

1563.16 (±441.98)

1563.33 (±380.28)

540.16 (±237.13)

532.33 (±142.32)

p

Not significant: (0.49)

Not significant: (0.43)

  1. Size of the prostate ablation observed with MRI and based on simulation (with a threshold level of sensitivity of 700 V/m2)
  2. Axial cross sectional area of the prostate of the post-treatment MRI and US were compared to validate the accuracy of registration. The US and simulation image are at 1:1 scaling