Research on Preoperative Localization of Pulmonary Small Nodules by Percutaneous Hookware Based on Deep Learning and Ultra Low Dose CT

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2400088626

Enrollment

Unknown

Registered

2024-08-22

Start date

2024-08-23

Completion date

Unknown

Last updated

2024-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Suspected malignant pulmonary nodule

Interventions

Gold Standard:Clinical control dose CT

Index test:Deep learning reconstruction (DLR)-based ultra-low-dose (ULD) CT

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Voluntary signing of informed consent form 2. Conventional dose CT imaging of pulmonary nodules in patients does not rule out the possibility of malignancy 3. Patients who require CT guided percutaneous needle aspiration for Hookwoire localization of pulmonary nodules 4. Simultaneously undergoing routine low-dose CT and ultra-low dose CT examinations

Exclusion criteria

Exclusion criteria: 1. Patients with coagulation dysfunction, pulmonary nodules too close to the heart, pulmonary nodule puncture pathway obstructed by bone, BMI>30kg/m2, and other reasons are not suitable for puncture localization 2. CT images do not meet the requirements (severe artifacts)

Design outcomes

Primary

Measure	Time frame
Imaging clarity;Metal diameter ambiguity;contrast to noise ratio;Accuracy;Sensitivity;Specificity;	—

Secondary

Measure	Time frame
Radiation dosage;Image noise;Positive predicative value;	—

Countries

China

Contacts

Public ContactMingzhu Liang

the Fifth Affiliated hospital of Sun Yat-sen University

liangmzh5@mail.sysu.edu.cn+86 137 9897 4827

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026