Clinical Application of 18F-PEG3-FPN PET Imaging in Diagnosis and Staging of Malignant Melanoma

This study is a diagnostic study. Patients and healthy volunteers were recruited from clinically suspected or confirmed melanoma patients to undergo 18F-PEG3-FPN PET/MR or PET/CT imaging to observe the response of the subjects after drug injection, and evaluate the efficacy of 18F-PEG3-FPN PET imaging in the diagnosis and staging of melanoma compared with 18F-FDG PET imaging. PET/CT imaging was performed in patients with contraindications to MR. The subjects underwent 18F-PEG3-FPN and 18F-FDG PET/MR or PET/CT imaging at an interval of two days, respectively. The general information, clinical data, blood routine, liver and kidney function indexes, 18F-PEG3-FPN and 18F-FDG PET/MR or PET/CT imaging results and other imaging data of the patients and volunteers were collected, and the histopathology of biopsy or surgical specimen was taken as the final diagnostic criteria. This study plans to set the sample size as 50 cases.

Sex

All

Minimum age

18 Years

Maximum age

80 Years

Inclusion Criteria:

* Adult patients (age 18 years or above), regardless of gender；
* Patients with clinically suspected or confirmed melanoma (supporting evidence including visual examination, MRI, CT, ultrasound, and histomathological examination, etc.) who agree to undergo histomathological examination (if not performed before imaging) and 18F-FDG PET imaging;Healthy volunteers;
* The patient or his legal representative can sign the informed consent.

Exclusion Criteria:

* Acute systemic diseases and electrolyte disturbances;
* Pregnant or lactating women;
* The patient or his legal representative is unable or unwilling to sign the informed consent.