Related Experiment Video
Updated: Aug 16, 2025

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
Published on: November 10, 2023
A comparative study of diagnostic accuracy in 3026 pleural biopsies and matched pleural effusion cytology with
Wen-Li Zhang1, Xiang Fang1, Jian-Qing Qiu2
1Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
Aim:
After reading the article by Ivan K. Poon et al. Certain issues regarding the methodology must be addressed.
Result:
First, it was not sufficient using only sensitivity and specificity. Second, we think the receiver operator characteristic curve (ROC) as well as the index of area under curve (AUC) could better be demonstrated in this, it was not sufficient using only sensitivity and specificity. Second, we think the receiver operator characteristic curve (ROC) as well as the index of area under curve (AUC) could better be demonstrated in this article for a more comprehensive understanding of this diagnostic test accuracy when comparing different tests.
Conclusion:
With using more comprehensive indexes including Youden's index, LR and AUC, the conclusions of Ivan K. Poon and his colleagues would be sodified.
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