The aim of this study was to investigate the overall sensitivity and specificity of indocyanine green (ICG)-near-infrared (NIR) fluorescence imaging in the detection of sentinel lymph node metastasis (SLNM) in penile cancer.
We searched PubMed, Embase, Web of Science, Scopus, and the Cochrane Library databases to identify manuscripts where ICG was intravenously administered prior to or during penile cancer surgery, with no restriction on language or publication status. The results extracted are presented as forest plots.
Seven studies were included in the analysis. The median sensitivity and specificity of ICG-NIR imaging for SLNM detection were 100 and 4%, respectively; the pooled sensitivity was 100.0% (95% confidence interval [CI] 97.0-100.0) and specificity was 2.0% (95% CI 1.0-3.0). There was no significant difference in the diagnostic results between different injection sites and doses in each experimental group.
To our knowledge, this meta-analysis is the first to summarize the diagnostic performance of ICG-NIR imaging for SLNM detection in penile cancer. ICG is sensitive in the imaging of SLN tissue, which can consequently improve the accuracy of lymph node detection. However, the specificity is very low.
World journal of urology. 2023 Jul 07 [Epub ahead of print]
Rui Zhang, Yaqin Zhang, Sihan Dong, Kai Pang, Xiaofeng Yang, Xunbin Wei
Institute of Medical Technology, Peking University Health Science Center, Beijing, 100080, China., First Clinical Medical College, Nanjing Medical University, Nanjing, 210000, China., Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100192, China., Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, 030001, China., Institute of Medical Technology, Peking University Health Science Center, Beijing, 100080, China. .