Journal
ANNALS OF PLASTIC SURGERY
Volume 70, Issue 5, Pages 595-598Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/SAP.0b013e3182650b4e
Keywords
breast; breast reconstruction; ICG; ICG angiography; SPY
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Funding
- LifeCell, Corp.
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Background: Previously, we and other investigators have reported the benefits of using SPY Intraoperative Perfusion Assessment System to assist in the prediction of mastectomy flap necrosis. To date, analysis of the SPY images has been subjective. However, the new SPY-Q postprocessing software allows for objective quantification of SPY images through the application of absolute and relative values of fluorescence intensity. This study seeks to determine the use of these objective, numerical data and their role in potentially predicting mastectomy flap necrosis. Methods: In a retrospective fashion, 20 SPY images from immediate breast reconstructions were randomly selected from a database of more than 100 images: 10 from breasts that developed flap necrosis and 10 from breasts that demonstrated adequate healing. Groups were matched for age, body mass index, and comorbidities. The points of necrosis and points of adequate healing were evaluated using the postprocessing software, and the groups were compared. Results: The mean relative'' fluorescence of the necrosis and the adequate healing groups was 25.2% and 43.3%, respectively (P < 0.001). The mean absolute fluorescence of the 2 groups was 18.5 and 25.0, respectively (P = 0.07). Conclusions: These findings suggest that quantitative relative'' perfusion values as generated by the postprocessing software may augment clinical judgment of flap viability in an objective and reproducible fashion.
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