Pulmonary nodule
Conditions
Interventions
Gold Standard:Standard-dose CT (120 kV, 200 mA)
Index test:Tin-filtered ultra-low-dose CT (150 kV, 100 mA + 0.6 mm Sn filter)
Sponsors
The First Affiliated Hospital of Henan University of Science and Technology
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Prospectively recruited patients undergoing non-contrast chest CT on a Siemens dual-source CT scanner at the First Affiliated Hospital of Henan University of Science and Technology, meeting the following characteristics: (1) Age: All analyzed imaging data must be derived from adult patients >18 years old. (2) Examination timeframe: December 1, 2024, to February 1, 2025. (3) Clinical indication: Participants must have a history of pulmonary nodules or clinical suspicion of pulmonary nodules.
Exclusion criteria
Exclusion criteria: (1) Severe underlying pulmonary diseases (e.g., advanced emphysema, severe pulmonary fibrosis); (2) History of pulmonary surgery; (3) Inability to cooperate with CT scanning (e.g., patients with severe dyspnea or other acute symptoms); (4) Incomplete clinical records.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overall sensitivity of ULDCT for pulmonary nodule detection;contrast to noise ratio;Specificity; | — |
Secondary
| Measure | Time frame |
|---|---|
| radiation dosage;Image noise; | — |
Countries
China
Contacts
Public ContactJun Qiang
The First Affiliated Hospital of Henan University of Science and Technology
Outcome results
None listed