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Table 4 The results, mean (standard deviation), of the connected-component analysis on the absolute acoustic pressure distributions for the four focusing approaches for the different target categories

From: Full-wave acoustic and thermal modeling of transcranial ultrasound propagation and investigation of skull-induced aberration correction techniques: a feasibility study

Quantity Approach ST above FP ST below FP CT All targets
D[mm] DPC 2.2 (0.6) 2.5 (1.0) 5.9 (6.4) 3.7 (4.3)
  RTPC 0.8 (0.1) 2.6 (1.7) 6.5 (8.3) 3.7 (5.6)
  SPC 0.5 (0.1) 0.7 (0.2) 0.7 (0.2) 0.6 (0.2)
  SPAC 0.6 (0.0) 0.6 (0.2) 0.6 (0.2) 0.6 (0.2)
p[MPa] DPC 2.6 (0.5) 1.6 (0.5) 0.9 (0.3) 1.5 (0.7)
  RTPC 3.2 (0.3) 1.6 (0.6) 1.0 (0.3) 1.7 (0.9)
  SPC 4.6 (0.2) 3.2 (0.6) 2.5 (0.3) 3.2 (0.9)
  SPAC 5.1 (0.2) 3.8 (0.7) 3.2 (0.3) 3.8 (0.8)
F shape DPC 1.8 (0.6) 1.7 (0.5) 4.2 (2.9) 2.6 (2.2)
  RTPC 2.1 (0.2) 1.9 (0.6) 1.0 (0.3) 1.7 (0.9)
  SPC 1.6 (0.2) 1.4 (0.3) 1.3 (0.1) 1.4 (0.2)
  SPAC 1.5 (0.1) 1.5 (0.4) 1.4 (0.1) 1.5 (0.3)
V[mm 3] DPC 185.7 (52.4) 303.4 (386.4) 225.1 (256.6) 253.5 (310.3)
  RTPC 78.5 (2.8) 250.3 (543.8) 196.3 (238.1) 244.9 (407.4)
  SPC 51.6 (3.5) 50.3 (11.8) 38.3 (1.3) 46.2 (10.1)
  SPAC 50.8 (3.5) 51.2 (19.8) 48.1 (7.7) 50.0 (14.3)
  1. D is the distance between the intended target and the nearest focal region, p is the peak absolute pressure in that region, F shape is the shape-factor, i.e., the ratio of the maximum to minimum dimensions of the focal region, and V is the volume of that region. ST structure targets, CT cortex targets, FP focal plane