Skip to main content

Table 4 Mean and standard deviation of the co-registration error (shift) for the parameter set obtained before and after calibration

From: Multimodality calibration for simultaneous fluoroscopic and nuclear imaging

 

Pinhole distance (cm)

1

2

3

4

5

Mean shift ± σ shiftbefore calibration (cm)

52.4

1.108 ± 0.004

1.416 ± 0.003

0.701 ± 0.003

1.055 ± 0.002

1.644 ± 0.005

58.4

1.127 ± 0.005

1.365 ± 0.005

0.748 ± 0.002

1.103 ± 0.005

1.620 ± 0.004

64.4

1.131 ± 0.002

1.310 ± 0.005

0.778 ± 0.004

1.117 ± 0.002

1.578 ± 0.004

70.4

1.103 ± 0.002

1.233 ± 0.003

0.784 ± 0.005

1.120 ± 0.004

1.499 ± 0.004

76.4

1.083 ± 0.003

1.197 ± 0.005

0.789 ± 0.005

1.096 ± 0.002

1.467 ± 0.005

Mean shift ± σ shiftafter calibration (cm)

52.4

0.160 ± 0.006

0.153 ± 0.006

0.184 ± 0.005

0.150 ± 0.006

0.123 ± 0.005

58.4

0.092 ± 0.005

0.073 ± 0.006

0.082 ± 0.011

0.134 ± 0.005

0.067 ± 0.008

64.4

0.092 ± 0.004

0.098 ± 0.005

0.027 ± 0.007

0.143 ± 0.004

0.093 ± 0.006

70.4

0.171 ± 0.002

0.184 ± 0.006

0.066 ± 0.006

0.175 ± 0.007

0.167 ± 0.005

76.4

0.225 ± 0.006

0.23 ± 0.005

0.136 ± 0.003

0.212 ± 0.008

0.216 ± 0.007

\( \begin{array}{l}\left|{\mathrm{shift}}_{\mathrm{before}}\right.\\ {}\left.-\kern0.5em {\mathrm{shift}}_{\mathrm{after}}\right|\\ {}\kern3em >\\ {}\sqrt[2]{\sigma_{\mathrm{before}}^2+{\sigma}_{\mathrm{after}}^2}\end{array} \)

52.4

Yes

Yes

Yes

Yes

Yes

58.4

Yes

Yes

Yes

Yes

Yes

64.4

Yes

Yes

Yes

Yes

Yes

70.4

Yes

Yes

Yes

Yes

Yes

76.4

Yes

Yes

Yes

Yes

Yes