1. Clinical reliability and utility of skin perfusion pressure measurement in ischemic limbs— Comparison with other noninvasive diagnostic methods 
Tetsuya Yamada, MD, Takashi Ohta, MD, Hiroyuki Ishibashi, MD, Ikuo Sugimoto, MD, Hirohide Iwata, MD, Masayuki Takahashi, MD, Jun Kawanishi, MD 
Journal of Vascular Surgery 
Volume 47, Issue 2, Pages (February 2008)
DOI: /j.jvs
Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

2. Fig 1
Relationship between skin perfusion pressure (SPP) and ankle blood pressure (ABP) (A; n = 351), SPP and toe blood pressure (TBP) (B; n = 367), and SPP and transcutaneous oxygen pressure (tcPO2) (C; n = 380). There was a linear correlations between SPP and ABP (P < .0001, r = 0.748), SPP and TBP (P < .0001, r = 0.853), and SPP and tcPO2 (P < .0001, r = ).
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

3. Fig 2
ROC curve for the threshold of each examination. Cut-off values: ankle blood pressure (ABP), 80 mm Hg; toe blood pressure (TBP), 30 mm Hg; SPP, 40 mm Hg; and transcutaneous oxygen pressure (tcPO2), 30 mm Hg. The measurement of SPP was more reliable than the measurements of ABP, TBP, and tcPO2.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

4. Fig 3
Relationship between skin perfusion pressure (SPP) and ankle blood pressure (ABP) (A; n = 73), SPP and toe blood pressure (TBP) (B; n = 64), and SPP and transcutaneous oxygen pressure (tcPO2) (C; n = 93) in healed and unhealed lesions. ○ healed, ● unhealed There was a significant correlation between SPP and ABP (P <.001, r = 0.646), SPP and TBP (P < .001, r = 0.690), SPP and tcPO2 (P < .001, r = 0.455).
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2008 The Society for Vascular Surgery Terms and Conditions