TY - JOUR AU - Ngoc, Mai Thi AU - Trang, Dam Thuy AU - Thao, Nguyen Thi Thu AU - Khoi, Nguyen Thi AU - Thuy, Nguyen Thanh AU - Anh, Nguyen Phuong AU - Luu, Vu Dang PY - 2022/12/28 Y2 - 2024/03/28 TI - 19. Diagnostic performance of lung ultrasound in detecting pneumothorax after CT- Guided transthoracic biopsy JF - Tạp chí Nghiên cứu Y học JA - TCNCYH VL - 161 IS - 12E11 SE - DO - 10.52852/tcncyh.v161i12E11.1228 UR - https://tapchinghiencuuyhoc.vn/index.php/tcncyh/article/view/1228 SP - 163-172 AB - <p class="p1"><em>This study aimed to describe the diagnostic performance of lung ultrasound (LUS) 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. Within 30 minutes, two radiologists blinded to the participant&rsquo;s prior information performed LUS in asymptomatic patients. The results showed that PTX was present on CT in 49/150 (32.3%) cases. LUS was positive in 40/150 (26.7%) patients, with a substantial agreement between the two radiologists (Cohen &kappa; statistics = 0.8). The sensitivity and specificity of LUS were 100% (95%CI 97.6% to 100%) and 91.8% (95%CI 87.4% to 96.2%), respectively. Moreover, 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 the semi-quantification of PTX by LUS, the location of lung point 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, LUS is a susceptible and specific diagnostic method for diagnosing and semi-quantifying PTX.</em></p> ER -