primary hepatocellular carcinoma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Primary hepatocellular carcinoma was confirmed by pathology in patients with clinically diagnosed liver mass; 2. Patients without any treatment before dual-energy CT examination; 3. Patients without contrast-enhanced CT examination contraindications underwent dual-energy CT GSI mode to obtain hepatic plain scan phase, hepatic artery phase, hepatic portal vein phase and hepatic vein phase images; 4. Patients who obtained sufficient pathological tissue samples for pathological examination after operation.
Exclusion criteria
Exclusion criteria: 1. Patients who had received relevant treatment before the first dual-energy CT examination; 2. Patients with contraindicated signs of iodine contrast agent use and other unsuitable for CT scanning; Absolute contraindications: patients with untreated hyperthyroidism; 3. The post-processing of dual-energy CT images cannot be carried out due to poor cooperation of patients, poor image quality due to motion artifacts or other reasons; 4. No four phases were obtained by dual-energy CT GSI model; 5. Incomplete clinical data; 6. Patients who did not obtain enough histopathological specimens or did not undergo pathological testing after surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Likelihood ratio test of partial maximum likelihood estimation by forward method;Likelihood ratio test for backward partial maximum likelihood estimation;Optimal subset method; | — |
Secondary
| Measure | Time frame |
|---|---|
| Multicollinearity diagnosis;Logistic regression equation;Relative risk;Goodness-of-fit test; | — |
Countries
China
Contacts
Sun Yat-sen Memorial Hospital, Sun Yat-sen University