Open AccessNon‐invasive longitudinal monitoring of angiogenesis in a murine full‐thickness cutaneous wound healing model using high‐resolution three‐dimensional ultrasound imaging
Author(s) -
Mukai K.,
Zhu W.,
Nakajima Y.,
Kobayashi M.,
Nakatani T.
Publication year - 2017
Publication title -
skin research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.521
H-Index - 69
eISSN - 1600-0846
pISSN - 0909-752X
DOI - 10.1111/srt.12374
Subject(s) - vascularity , ultrasound , wound healing , medicine , angiogenesis , laser doppler velocimetry , biomedical engineering , pathology , neovascularization , radiology , surgery , blood flow
Background/Purpose The aim of this study was to evaluate the longitudinal monitoring of angiogenesis in a murine full‐thickness cutaneous wound healing model using high‐resolution three‐dimensional (3D) ultrasound imaging. Methods Two C57 BL /6 mice were used. Two‐dimensional (2D) ultrasound images with the Color Doppler mode were acquired at regular spatial intervals on day 9, 11, and 14 after wounding. 3D ultrasound images were processed by reconstructing the 2D ultrasound image sequences. The wounds were harvested on day 14 and serial sections were immunohistologically stained with an anti‐ CD 31 antibody. Results 3D ultrasound imaging with the Color Doppler mode showed the distribution of microvascular growth on days 9, 11, and 14 after wounding (44.6%, 51.5%, and 27.3% in wound 1, 55.8%, 38.1%, and 35.1% in wound 2, 60.6%, 62.6%, and 63.1% in wound 3, and 15.8%, 42.0%, and 31.9% in wound 4, respectively). A correlation was observed between % vascularity measured by paired 2D ultrasound imaging with the Color Doppler mode and sections immunohistologically stained for the anti‐ CD 31 antibody (r=0.927, 0.871, 0.717, and 0.913 for wounds 1, 2, 3, and 4, respectively. P <.01). Conclusion These results indicate that high‐resolution 3D ultrasound imaging is useful for longitudinally evaluating the distribution of microvascular growth over the course of healing.