Skip to main content
. Author manuscript; available in PMC: 2023 Jun 1.
Published in final edited form as: Ultrasound Med Biol. 2022 Mar 11;48(6):1058–1069. doi: 10.1016/j.ultrasmedbio.2022.02.002

Fig 4. LDPI measurements in the feet and calves are in agreement with each other, and in disagreement with CEUS.

Fig 4.

A) Perfusion recovery ratio of the ischemic:control limb measured by LDPI in the feet and calves before surgery and days 1, 4, 7, and 14 post-surgery. The calf has a slightly higher perfusion ratio before surgery, 1.09±0.03 vs 1.01±0.03 in the feet. Day one post-surgery, perfusion in the ischemic calf was greater than in the foot, 0.85±0.05 vs 0.72±0.03. Corresponding to this lesser initial reduction in perfusion, perfusion recovery was faster in the calves than the feet. (n=10) B) Perfusion recovery in the calf measured by LDPI and CEUS before surgery and days 1, 4, 7, and 14 post-surgery. By LDPI, perfusion returns to normal within 4 days post-surgery. By CEUS, perfusion is more severely reduced at day 1, then improves modestly before achieving a plateau at ~50% of the control limb. (n=10)