CAJ | 학술논문

目的探讨肺癌侵犯中央肺动脉继发肺动脉高压的发生率并评估CT诊断价值。方法对20例肺癌侵犯中央肺动脉（肺癌CICPA）患者行右心导管术及CT检查。右心导管术测量肺动脉压力。用盲法判断患者的CT表现并与右心导管检查结果对照，评价CT诊断价值。结果肺癌CICPA癌肿侵犯近端者中有3例（15％）出现轻度肺动脉高压。CT表现为主肺动脉扩张，主肺动脉与同层面降主动脉直径比值增大，CT诊断肺动脉高压准确性为90％（18／20）。结论肺癌CICPA继发肺动脉高压少见。CT在肺癌CICPA继发肺动脉高压诊断中具有重要价值。
목적 탐토폐암침범중앙폐동맥계발폐동맥고압적발생솔병평고CT진단개치。방법 대20례폐암침범중앙폐동맥（폐암CICPA）환자행우심도관술급CT검사。우심도관술측량폐동맥압력。용맹법판단환자적CT표현병여우심도관검사결과대조，평개CT진단개치。결과 폐암CICPA암종침범근단자중유3례（15％）출현경도폐동맥고압。CT표현위주폐동맥확장，주폐동맥여동층면강주동맥직경비치증대，CT진단폐동맥고압준학성위90％（18／20）。결론 폐암CICPA계발폐동맥고압소견。CT재폐암CICPA계발폐동맥고압진단중구유중요개치。
Objective To investigate the incidence of pulmonary arteryhypertension secondary to cancerous invasion of central pulmonary artery (CICPA) in lung cancer and the diagnostic value of CT on pulmonary artery hypertension.Methods Twenty cases of lung cancer combined with CICPA underwent pulmonary artery pressure measurement through right heart catheterization and CT scanning. CT findings were blindly assessed and were compared with the results of pulmonary artery pressure measurement. Results Three cases (3／20, 15％) showed mild pulmonary artery hypertension in arteries proximal to CICPA segments, in which CT findings were dilation of the main pulmonary artery and increase of the diameter ratio of the main pulmonary artery to the descending aorta at the same level. CT diagnostic accuracy for pulmonary artery hypertension was 90％(18／20). Conclusion Pulmonary artery hypertension occurs with low incidence in lung cancer with CICPA. CT is of great value in diagnosing pulmonary artery hypertension in lung cancer with CICPA.