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. Author manuscript; available in PMC: 2021 May 12.
Published in final edited form as: Phys Med Biol. 2020 Apr 14;65(7):075006. doi: 10.1088/1361-6560/ab7632

Table 2.

Shifts between measured and extrapolated detector locations summarized in each cardinal direction (Δx, Δy, and Δz) and total distance (d) for (a) each patient and (b) averaged across all patient cases for each site. Shifts are described in units of cm.

(a)
Detector Δx (cm) Δy (cm) Δz (cm) d (cm)
Case 008
Diaph 1.28 2.83 1.87 3.63
PS 0.77 1.12 2.18 2.57
AS 1.28 1.03 −1.47 2.21
PM 1.53 −0.29 −0.83 1.76
PCW 1.07 1.29 −1.51 2.25
ACW −1.86 1.77 1.11 2.80
Peri −1.12 −0.87 1.28 1.91
Apex 1.06 0.46 2.12 2.41
Average 0.2 ± 1.4 0.9 ± 1.2 0.1 ± 1.7 2.4 ± 0.6
Case 012
Diaph −2.87 2.20 −2.77 4.56
PS −0.91 1.98 −2.11 3.03
AS 2.10 1.90 −3.19 4.26
PM 0.92 1.12 −1.84 2.34
PCW 1.98 2.09 −1.40 3.20
ACW 2.17 −1.93 −0.98 3.07
Peri −2.86 −2.47 2.18 4.36
Apex 0.97 0.06 3.69 3.82
Average 0.2 ± 2.1 0.6 ± 1.9 −0.8 ± 2.4 3.6 ± 0.8
Case 014
Diaph 1.97 −1.28 −4.62 5.18
PS 1.54 2.11 −3.19 4.12
AS 1.77 1.65 3.21 4.02
PM 1.10 0.99 1.28 1.95
PCW − 1.07 2.89 −2.32 3.86
ACW − 0.98 −0.67 −1.97 2.30
Peri − 2.50 −2.01 −1.69 3.62
Apex − 1.11 −1.48 3.88 4.30
Average 0.1 ± 1.7 0.3 ± 1.9 −0.7 ± 3.1 3.7 ± 1.1
Case 016
Diaph 3.86 − 1.18 −4.17 5.81
PS 1.39 2.11 3.27 4.13
AS 1.86 2.11 −3.19 4.26
PM − 1.58 1.09 −4.10 4.53
PCW − 1.57 2.17 −1.01 2.87
ACW 0.98 − 0.99 3.86 4.10
Peri 0.89 − 0.90 −2.79 3.06
Apex 1.39 − 1.07 2.83 3.33
Average 0.9 ± 1.8 0.4 ± 1.6 −0.7 ± 3.5 4.0 ± 1.0
Case 017
Diaph 1.39 −4.20 −1.87 4.80
PS 1.29 1.40 −3.20 3.72
AS 1.13 1.18 −1.78 2.42
PM 2.11 −1.73 −1.98 3.37
PCW 1.09 −0.98 2.09 2.56
ACW 1.33 2.32 −1.20 2.93
Peri 1.72 1.38 −1.78 2.84
Apex 0.91 1.11 2.43 2.83
Average 1.4 ± 0.4 0.1 ± 2.2 −0.9 ± 2.0 3.2 ± 0.8
Case 018
Diaph 0.99 −1.19 −2.11 2.61
PS 1.19 −0.92 −1.30 1.98
AS − 1.11 4.18 −4.76 6.43
PM 0.91 1.18 −1.41 2.06
PCW − 1.88 1.30 −0.92 2.46
ACW 2.76 − 3.20 1.92 4.64
Peri − 2.40 1.20 −1.29 2.97
Apex 1.08 − 4.53 2.42 5.24
Average 0.2 ± 1.8 0.2 ± 2.8 0.4 ± 2.4 3.6 ± 1.7
Case 020
Diaph 0.01 −0.27 −1.17 1.20
PS 0.37 0.07 −2.21 2.20
AS 0.90 −0.93 −1.52 1.99
PM 0.01 1.28 −0.92 1.57
PCW −0.32 0.90 −0.74 1.20
ACW 0.05 −0.28 −0.43 0.52
Peri −1.02 −1.50 −0.29 1.84
Apex 0.09 −0.52 1.75 1.82
Average 0.0 ± 0.6 −0.2 ± 0.9 0.4 ± 1.3 1.5 ± 0.6
(b)
Δx¯ Δy¯ Δz¯ d¯
Diaph 0.6 ± 2.2 −0.4 ± 2.4 −2.7 ± 1.3 4.0 ± 1.6
PS 0.8 ± 0.9 1.1 ± 1.2 −0.9 ± 2.6 3.1 ± 0.9
AS 1.1 ± 1.1 1.6 ± 1.5 −1.8 ± 2.5 3.7 ± 1.6
PM 0.7 ± 1.2 0.5 ± 1.1 −1.4 ± 1.6 2.5 ± 1.1
PCW −0.1 ± 1.5 1.4 ± 1.2 −0.8 ± 1.4 2.6 ± 0.8
ACW 0.6 ± 1.7 −0.4 ± 2.0 0.3 ± 2.1 2.9 ± 1.3
Peri −1.0 ± 1.8 −0.7 ± 1.5 −0.6 ± 1.8 2.9 ± 0.9
Apex 0.5 ± 0.9 −0.8 ± 2.0 2.7 ± 0.9 3.4 ± 1.3