[Optimal screening tool for thoracic diseases: chest X ray or CT?]

Area of Science:

• Radiology
• Pulmonary Medicine
• Medical Imaging

Background:

• Conventional chest radiography remains a primary tool for thoracic disease evaluation and screening.
• Computed tomography (CT) is recognized as superior for screening lung parenchymal diseases.

Purpose of the Study:

• To review the interpretation methodology of chest radiographs in screening settings.
• To emphasize critical areas for improved lesion detection and propose a checklist.
• To analyze techniques, indications, and diagnostic values of radiography and CT for specific lung conditions.

Main Methods:

• Review of chest radiograph interpretation protocols for screening.
• Analysis of techniques, indications, and diagnostic accuracy of chest radiography and CT scans.
• Application of findings to screening for lung cancer, asbestos exposure, and tuberculosis.

Main Results:

• Chest radiography interpretation requires specific attention to "poor detectability zones" to minimize missed lesions.
• A checklist is proposed to enhance the systematic review of screening chest radiographs.
• Comparative analysis highlights the diagnostic strengths of both chest radiography and CT scan in different screening scenarios.

Conclusions:

• Optimized interpretation of chest radiographs can improve screening efficacy for thoracic diseases.
• While CT offers superior detail, improved conventional radiography techniques remain valuable.
• The proposed checklist aids in reducing the risk of overlooking significant findings during lung disease screening.