김성태 교수

Mucoepidermoid carcinoma of the tracheobronchial tree, usually located in a segmental bronchus, appears at CT as a smoothly oval or lobulated airway mass. It adapts to the branching features of the airways.

OBJECTIVE: Thoracic actinomycosis is a chronic suppurative pulmonary or endobronchial infection caused by Actinomyces israelii, a gram-positive anaerobic organism. We present the CT features of thoracic actinomycosis with histopathologic correlation. CONCLUSION: The typical CT feature of parenchymal actinomycosis is a chronic segmental air-space consolidation containing necrotic low-attenuation areas with frequent cavity formation. A broncholith can be secondarily infected with Actinomyces organ

BALT lymphomas usually appear as airspace consolidation or nodules with air bronchogram or adjacent ground-glass attenuation at CT. These findings are similar to previous descriptions of pseudolymphomas. Multiple bilateral lesions are common in BALT lymphoma. Bubble-like radiolucencies have not been described previously and can be an additional finding of BALT lymphoma.

The objective of this study was to assess the CT features of pulmonary inflammatory myofibroblastic tumors with pathologic correlation. The authors retrospectively reviewed CT and pathologic findings of 10 patients with surgically resected inflammatory myofibroblastic tumor of the lung. On CT, five patients showed a polypoid endotracheal (n = 3) or endobronchial nodule in the left main bronchus (n = 2). Two patients showed a central parenchymal mass, and the remaining three patients showed a per

The CT features of pleomorphic carcinoma of the lung appear to be dictated by the epithelial component of the tumor. Among the various subtypes of pleomorphic carcinoma, the large cell and giant cell subtype showed constant CT features including subpleural location, peritumoral areas of ground-glass attenuation, and extensive central low-attenuation areas.

Sialadenoid Tumors of the Respiratory TractRadiologic—Pathologic CorrelationTae Sung Kim1, Kyung Soo Lee1, Joungho Han2, Eun A. Kim1, Po Song Yang1 and Jung-Gi Im3Audio Available | Share

OBJECTIVE: Our objective was to assess the CT findings for endobronchial actinomycosis associated with broncholithiasis. CONCLUSION: Endobronchial actinomycosis associated with broncholithiasis manifests as a proximal obstructive calcified endobronchial nodule associated with distal post-obstructive pneumonia of the involved lobe or segment on CT. The possibility of endobronchial actinomycosis should be entertained when broncholithiasis is seen on CT in tuberculosis-endemic areas.

Percutaneous radiofrequency ablation is feasible and can be a promising method for the local control of metastatic pulmonary nodules caused by hepatocellular carcinoma, especially when they are limited in number.

After reducing the image number by one half, 2.5-mm thick MIP images using 16-slice MDCT are found to provide satisfactory images, which are comparable to 1.25-mm thick transaxial images for the analysis of subsegmental pulmonary arteries in patients suspected of pulmonary embolism.

The purpose of this study was to investigate the differences in CT characteristics and disease spread patterns between ROS1-rearranged adenocarcinomas and epidermal growth factor receptor (EGFR)-mutant or anaplastic lymphoma kinase (ALK)-rearranged adenocarcinomas. Patients with stage IIIb/IV adenocarcinoma with ROS1 rearrangement, EGFR mutations, or ALK rearrangement were retrospectively identified. Two radiologists evaluated CT features and disease spread patterns. A multivariable logistic reg

A voxel-based dual-time parametric imaging technique for evaluation of post-CRT rectal cancer holds promise for differentiating residual tumor from treatment-related nonspecific 18F-FDG uptake.

전자거버넌스의 구현은 정부 웹사이트를 통해 현실화되고 있다. 따라서 전자거버넌스의 통로로써 지방정부의 웹사이트는 고객중심 지향의 전자적 공공서비스 제공뿐만 아니라 동시에 정보제공, 의견수렴, 정책활동에의 시민참여를 강조하는 전자적 참여 통로의 역할을 충분히 할 수 있도록 구현되어야 한다. 본 연구는 실제 지방정부의 웹사이트가 이러한 공공서비스의 전자적 제공뿐만 아니라, 시민참여의 창구로서 전자거버넌스의 통로 역할을 하고 있는지 분석한다. 이를 위해 세계 대도시 웹사이트를 대상으로 하여 개인정보보호와 보안(Privacy/Security), 사용편이성(Usability), 정보제공(Content), 서비스(Service), 시민참여(Citizen Participation)의 5가지 분야를 평가하고 그 결과를 비교분석하였다. 평가결과, 전 세계 대도시의 전자거버넌스 수준은 아직 중간에도 미치지 못하는 것으로 나타났고, 사용편이성만이 중간이상의 수준으로 평가되었다. 또한 OECD 회원국(

Soft-copy digital radiographic images are superior to soft-copy computed radiographic images obtained for detection of mild pulmonary edema in pigs.