Implementing lung cancer screening: the US experience

Area of Science:

• Radiology
• Pulmonology
• Public Health

Background:

• National Lung Screening Trial (NLST) demonstrated reduced lung cancer mortality with low-dose computed tomography (LDCT) screening.
• Annual LDCT screening is now a covered benefit in the US, requiring data submission for reimbursement.
• Current guidelines improve false-positive rates but struggle with accurate nodule classification and smoking cessation support.

Purpose of the Study:

• To explore opportunities for radiologists to enhance LDCT screening benefits.
• To improve patient selection, nodule management, and smoking cessation interventions within the radiology setting.
• To re-engineer imaging practice for improved lung cancer early detection and mortality reduction.

Main Methods:

• Systematic data collection on screen-detected and incidentally detected lung nodules.
• Analysis of current nodule management and tracking guidelines.
• Evaluation of smoking cessation support within clinical practices.

Main Results:

• Eligible individuals for screening represent a minority of all lung cancer diagnoses.
• Current nodule management guidelines reduce false positives but have limitations in classifying nodules.
• Smoking cessation is often inadequately addressed in busy clinical practices.

Conclusions:

• Radiologists are uniquely positioned to collect longitudinal data to refine screening eligibility and improve nodule management.
• Optimizing the screening setting can enhance smoking cessation motivation and provision.
• Re-engineering imaging practice can significantly contribute to lung cancer early detection and mortality reduction.