The Application of the New Magnetic Resonance UTE Technique in Thoracic Lesions

Recruiting

• Conditions: Lung Diseases

• Registration Number: NCT05998707
• Lead Sponsor: Fifth Affiliated Hospital, Sun Yat-Sen University

Brief Summary

Quantitative characteristic values of lung lesions were obtained by UTE technique, so as to make qualitative diagnosis of benign and malignant lesions. And to explore the clinical feasibility of CT-like technology - high resolution ZTE technology in the diagnosis of pulmonary diseases.

Detailed Description

Ultrashort echo time (UTE) sequence can obtain data from T2\* for lung imaging before T2\* decays in lung parenchyma with extremely short echo time, which makes up for the defect that conventional MRI cannot clearly display short T2 tissue imaging, and can provide more supplementary information for lung CT scan. There has been a lot of research progress in the evaluation of neonatal lung disease, chronic obstructive airway disease and pneumonia. The 3D UTE sequence developed on this basis has made great progress in improving the resolution, signal-to-noise ratio and shortening the scanning time of lung MR Images, and has successfully obtained submillimeter high-resolution images. The purpose of this study was to explore the value of MRI ultra-short echo technology in the qualitative diagnosis of benign and malignant lung lesions, and to explore the clinical application of CT-like technology - high resolution ZTE technology in the lung.

Study Timeline

• Status Verified: 2023-07
• Study Start: 2023-07-01
• Study First Submitted: 2023-08-02
• Study First Submitted QC: 2023-08-17
• Last Update Submitted: 2023-08-17
• Study First Posted: 2023-08-21
• Last Update Posted: 2023-08-21
• Primary Completion: 2024-06-13
• Study Completion: 2024-06-13

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 150

Inclusion Criteria

1. Age ≥18 years old;
2. There are lung lesions, and the solid component is ≥6mm;
3. Chest CT plain scan or /+ enhanced examination within 4 weeks.

Exclusion Criteria

1. There are metal implants in the corresponding parts of the chest;
2. MRI contrast agent allergy;
3. Claustrophobia;
4. Pregnant women;
5. High fever;
6. Respiratory failure;
7. Lung lesion biopsy within 4 weeks prior to examination.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Magnetization Transfer Ratio (MTR)	baseline (before surgery)	Magnetization Transfer Ratio
T2 relaxation rate	baseline (before surgery)	R2\*
proton density fat fraction (PDFF)	baseline (before surgery)	Determination of proton density fat fraction by magnetic resonance imaging

Secondary Outcome Measures

Name	Time	Method
Subjective rating	baseline (before surgery)	rating scale

Trial Locations

Locations (1)

Radiography department; 🇨🇳 Zhuhai, Guangdong, China