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10 December 2021: Clinical Research

Development and Validation of a Random Forest Risk Prediction Pneumothorax Model in Percutaneous Transthoracic Needle Biopsy

Hong Lin Wu 1ABCDEF , Gao Wu Yan 2ADF , Li Cheng Lei 3BC , Yong Du 4AD , Xiang Ke Niu 1DF , Tao Peng 1FG*

DOI: 10.12659/MSM.932137

Med Sci Monit 2021; 27:e932137

Figure 2 Measurement methods. (A) Axial chest CT image in a 61-year-old male patient demonstrates a solid nodule in the right upper lobe. The lesion size is measured along the maximum short-axis diameter (white dotted line). The lesion depth is measured from the costal pleura to the nearest edge of the lesion (yellow double arrows). The length of the aerated lung traversed by the needle is measured from the pleural puncture point to the edge of lesion along the needle path (red double arrows). The angle of pleural puncture is the smallest angle between a line along the needle route and a tangential line to the pleura (white arc). (B) Axial chest CT image in a 78-year-old male patient demonstrates a cavitary lesion in the right upper lobe. The biopsy needle passed through the pleural indentation (white arrow). (C) Axial chest CT image demonstrates the pneumothorax measurement. The longest distance between parietal pleura and visceral pleura (white line).

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750