. Author manuscript; available in PMC: 2014 Jun 21.

Published in final edited form as: Phys Med Biol. 2013 May 17;58(12):4099–4118. doi: 10.1088/0031-9155/58/12/4099

Table 6.

Correlation (Spearman rho) between locations for posterior tissue available for imaging with prone and upright breast CT

	Anterior axillary line at the axilla	Medial and inferior attachment	Medial attachment	Lateral attachment	Superior attachment	Inferior attachment
Prone positioning of study participants
Anterior axillary line at the axilla	1	0.177	0.077	0.496^*	0.759^*	0.371^*
Medial and inferior attachment	0.177	1	0.755^*	0.230	0.335^*	0.710^*
Medial attachment	0.077	0.755^*	1	−0.002	0.271	0.564^*
Lateral attachment	0.496^*	0.231	−0.002	1	0.365^*	0.382^*
Superior attachment	0.759^*	0.335^*	0.271	0.365^*	1	0.386^*
Inferior attachment	0.371^*	0.710^*	0.564^*	0.382^*	0.386^*	1
Upright positioning of study participants
Anterior axillary line at the axilla	1	0.029	−0.011	0.218	0.664^*	0.115
Medial and inferior attachment	0.029	1	0.167	−0.030	0.072	0.396^*
Medial attachment	−0.011	0.167	1	−0.197	0.160	−0.079
Lateral attachment	0.218	−0.030	−0.197	1	0.080	−0.095
Superior attachment	0.664^*	0.072	0.160	0.080	1	0.020
Inferior attachment	0.115	0.396^*	−0.079	−0.095	0.020	1

indicates statistically significant correlation at the 0.05 level (2-tailed test)