THE LUNG POINT: AN ULTRASOUND FINDING IN THE DIAGNOSIS AND SEMIQUANTIFICATION OF PNEUMOTHORAX

Mai Thị Ngọc1,, Đàm Thủy Trang2, Nguyễn Thị Thu Thảo3, Nguyễn Thị Khôi3, Nguyễn Thanh Thủy4, Nguyễn Phương Anh4, Bs Vũ Đăng Lưu4
1 Bệnh Viện Bạch Mai
2 Trung tâm Điện quang Bạch Mai
3 Trung tâm Điện Quang Bệnh viện Bạch Mai
4 Trung tâm điện quang- Bệnh viện Bạch Mai

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Tóm tắt

This study focused on evaluating the diagnostic performance of the lung point (LP)- a lung ultrasound (LUS) sign in detecting and semi-quantifying pneumothorax (PTX), using computed tomography (CT) as the reference standard. The study included 150 patients who underwent CT-guided transthoracic biopsy (TTB) for lung lesions. Two radiologists blinded to the participant’s prior information performed LUS post-biopsy. The results showed that PTX was present on CT in 49/150 (32.3%) cases. The LP was positive in 36/150 (24%) patients, with a substantial agreement between the two radiologists (Cohen κ statistics = 0.8). The sensitivity and specificity of the LP were 73.5% (95%CI 66.5% to 80.5) and 100% (95%CI 97.6% to 100%), respectively. Moreover, the positive and negative predictive values were 100% (95%CI 97.6% to 100%) and 67.3% (95%CI 59.8% to 78.4%), respectively. In the semi-quantification of PTX, the location of LP was described in 36/49 (73.5%) patients. The sensitivity and specificity of this sign were 87.5% (95%CI 82.2% to 92.8%) and 96.4% (95%CI 92.4% to 98.9%), respectively. The positive and negative predictive values were 87.5% (95%CI 82.2% to 92.8%) and 96.4% (95%CI 92.4% to 98.9%), respectively. In conclusion, LP is a susceptible and specific LUS sign for diagnosing and semi-quantifying PTX

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Tài liệu tham khảo

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