CAJ | 학술논문

目的探讨数字化体层融合在肺结节探查中的应用价值.方法 30例疑有肺内结节的患者,均先后行胸部X线平片、体层融合和CT检查.将上述影像资料传至后处理工作站,由2名具有3年以上胸部影像诊断经验的医师分别进行双盲法阅片,观察每例患者肺部结节的数量,每个肺结节的部位、大小.然后,2名阅片者再共同阅片,使单独阅片不一致的结果得到统一.以CT结果作为标准,分别计算胸部X线平片和体层融合探查肺结节的敏感性.采用配对四格表资料的X~2检验比较两者的差异性.结果 30例患者,胸部X线平片检查9例阴性,21例阳性,共发现肺结节40个.体层融合检查4例阴性,26例阳性,共发现肺结节89个.CT检查3例阴性,27例阳性,共发现肺结节102个.以CT作为标准对照,胸部X线平片探查肺结节的敏感性为27.4%(28/102),体层融合的敏感性为87.2%(89/102),差异有统计学意义(X~2=4.35,P<0.05).结论数字化体层融合可显著提高肺结节探查的敏感性,可以作为胸部X线平片良好和必要的补充.
목적 탐토수자화체층융합재폐결절탐사중적응용개치.방법 30례의유폐내결절적환자,균선후행흉부X선평편、체층융합화CT검사.장상술영상자료전지후처리공작참,유2명구유3년이상흉부영상진단경험적의사분별진행쌍맹법열편,관찰매례환자폐부결절적수량,매개폐결절적부위、대소.연후,2명열편자재공동열편,사단독열편불일치적결과득도통일.이CT결과작위표준,분별계산흉부X선평편화체층융합탐사폐결절적민감성.채용배대사격표자료적X~2검험비교량자적차이성.결과 30례환자,흉부X선평편검사9례음성,21례양성,공발현폐결절40개.체층융합검사4례음성,26례양성,공발현폐결절89개.CT검사3례음성,27례양성,공발현폐결절102개.이CT작위표준대조,흉부X선평편탐사폐결절적민감성위27.4%(28/102),체층융합적민감성위87.2%(89/102),차이유통계학의의(X~2=4.35,P<0.05).결론 수자화체층융합가현저제고폐결절탐사적민감성,가이작위흉부X선평편량호화필요적보충.
Objective To discuss the value of digital tomosynthesis for detection of pulmonary nodules. Methods Thirty patients suspected of having pulmonary nodules underwent chest radiography, digital tomosynthesis and CT examination. Above image data were transferred to postprocessing work station and were reviewed by 2 radiologists with 3 years of chest-radiology diagnosis experience in a double-blind method. The number, location and size of nodules were recorded. Then, 2 radiologists reviewed the all images once more, and discuss in consensus. The sensitivities of chest radiography and digital tomosynthesis for detection of pulmonary nodules were respectively calculated according to the CT results. Chi-square test was used for radiography, digital tomosynthesis and CT examination. Results Of 30 patients, 21 were detected having pulmonary nodules by X-ray radiography and 9 were negative, the total number of 40 nodules was detected, while 89 nodules in 26 patients were detected by digital tomosynthesis, and only 4 patients were negative. CT demonstrated 102 nodules in 27 patients, and 3 patients were negative. Taking CT as "gold standard", the sensitivities of X-ray radiography and digital tomosynthesis were 27.4%(28/102)and 87.2%(89/102), X~2=4.35, P<0.05, respectively. Conclusion Digital tomosynthesis has a high sensitivity for detection of pulmonary nodules compared with X-ray radiography, and could be an excellent and necessary supplementary technique of X-ray radiography.