focal liver lesion
Conditions
Interventions
Gold Standard:In this study, consistent assessing results from expert evaluation for focal liver lesions.
adjunct 
diagnostic 
for 
lesion
Sponsors
Beijing Friendship Hospital, Capital Medical University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Case inclusion criteria: 1) =18 years; 2) Complete liver enhancement and plain MR images; 3) The field intensity of MR equipment shall not be less than 1.4T; 4) Slice thickness of T1WI sequence =5mm,5mm=slice thickness of T2WI sequence=8mm.If the case is positive, a benign or malignant diagnosis result that meets the criteria for diagnosis and treatment of pathology or clinical routine diagnosis and treatment is also required. 2)Candidate inclusion criteria: 1) minimum 1 year of imaging work experience(considering different seniority); 2) have a practicing physician qualification certificate; 3) have a GCP certificate.
Exclusion criteria
Exclusion criteria: 1) The image is not clear or the artifact is too serious to be diagnosed; 2) History of liver surgery or interventional therapy; 3) The liver background signal is seriously abnormal due to cirrhosis or other reasons, leading to undiagnosis; 4) The number of focal lesions in a single case was more than 10; 5) Those that the investigator considers inappropriate for other reasons.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| sensitivity;specificity;AFROC-AUC; | — |
Secondary
| Measure | Time frame |
|---|---|
| total consistent rate;KAPPA value;positive predictive value;negative predictive value;sensitivity;specificity;diagnosis time;Interface friendliness;operation convenience;equipment stability; | — |
Countries
China
Contacts
Public ContactZhenghan Yang
Beijing Friendship Hospital, Capital Medical University
Outcome results
None listed