Introduction
Low dose CT screening reduces lung cancer mortality in high risk populations by detecting early stage nodules. Protocols prioritize radiation reduction while maintaining nodule detectability through thin slice acquisition and iterative reconstruction. Standardized reporting systems guide follow up and management.
Acquisition Parameters
Low dose protocols use reduced tube current automated exposure control and low kVp settings tailored to patient size. Thin slice reconstruction and appropriate kernel selection support nodule detection and volumetric analysis. Breath hold instructions and consistent technique across serial exams improve comparability.
Reporting and Follow Up
Structured reporting systems such as LungRADS categorize findings and recommend surveillance intervals based on nodule size and characteristics. Volumetric measurement reduces variability in growth assessment and supports management decisions. Shared decision making and smoking cessation counseling are integral to screening programs.
Program Implementation
Screening programs require patient selection criteria tracking systems and quality assurance to ensure benefit and minimize harms. Dose monitoring and benchmarking support continuous improvement. Coordination with multidisciplinary teams ensures timely diagnostic workup and treatment when needed.