Laser speckle contrast imaging compared with indocyanine green in renal perfusion of a porcine model.

ABSTRACT:

Background

When viewed under near-infrared light, indocyanine green (ICG) signal for kidney perfusion can be utilized in partial nephrectomy. Laser speckle contrast imaging (LSCI) uses coherent light to detect perfusion during real-time laparoscopic surgery.

Materials and methods

Laser speckle contrast imaging or ActivSight, an imaging sensor adapter, was used during laparoscopy of an anesthetized porcine kidney model. ActivSight's "perfusion mode" and "quantification mode" displayed the blood flow as a heatmap and numerical signal intensity, respectively.

Results

After the upper segmental renal artery was clamped, ICG was seen in the lower pole, and LSCI showed low unit (dark color) quantification and perfusion in the upper pole. Indocyanine green was retained in the

SUBMITTER: Noel J 

PROVIDER: S-EPMC10489255 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature