Lung cancer is the leading cause of death from and most effective way to reduce lung mortality early detection treatment. The low-dose computed tomography (CT) can chances death, used as screening test in several countries. Pulmonary nodules are a common finding smokers, differential diagnosis particularly important smokers. We tried find out characteristics patients who underwent smoker screen...

OBJECTIVE To compare observer performance using liquid-crystal display (LCD) and cathode-ray tube (CRT) monitors in the interpretation of soft-copy chest radiographs for the detection of small solitary pulmonary nodules. MATERIALS AND METHODS By reviewing our Medical Center's radiologic information system, the eight radiologists participating in this study (three board-certified and five resi...

Chest X-ray is a usual tool for family physicians; however, unexpected findings in chest X-ray are a frequent challenge. We present a rare case of pulmonary hilar nodule misdiagnosis in a chest X-ray. An 84-year-old woman was sent with a diagnosis of a right pulmonary hilum nodule. She had a history of chronic obstructive pulmonary disease; so in a chest X-ray, her family physician discovered a...

In order to improve the detection accuracy of pulmonary nodules in CT image, considering two problems of pulmonary nodules detection model, including unreasonable feature structure and nontightness of feature representation, a pulmonary nodules detection algorithm is proposed based on SVM and CT image feature-level fusion with rough sets. Firstly, CT images of pulmonary nodule are analyzed, and...

ACR Appropriateness Criteria 1 Solitary Pulmonary Nodule American College of Radiology ACR Appropriateness Criteria Clinical Condition: Radiographically Detected Solitary Pulmonary Nodule Variant 1: Solid nodule 1 cm, low clinical suspicion for cancer. Radiologic Procedure Rating Comments RRL* CT chest without contrast 8 To detect occult calcifications, fat, bronchus sign, etc. ☢☢☢ FDG-PET/CT ...

OBJECTIVES The solitary pulmonary nodule remains a common clinical problem. The essential question is whether the lesion is malignant or not. This discussion presents the clinical practice and looks at the problem. DESIGN Didactic. SETTING Academic tertiary-care hospital. PATIENTS Prospective thoracic database. INTERVENTIONS Minimally invasive technique. RESULTS The workup and treatme...

Current computer-aided diagnosis (CAD) models for determining pulmonary nodule malignancy characterize nodule shape, density, and border in computed tomography (CT) data. Analyzing the lung parenchyma surrounding the nodule has been minimally explored. We hypothesize that improved nodule classification is achievable by including features quantified from the surrounding lung tissue. To explore t...