None
Conditions
Interventions
Experimental group:Radiologists' Diagnosis Based on NCCT + vCECT
Four radiologists were divided into two groups, rotating diagnostic strategies every two weeks, with each patients images evaluated usi
Control group:Radiologists use non-contrast CT scans for diagnosis
Four radiologists were divided into two groups, rotating diagnostic strategies every two weeks, with each patients images evaluated using both strategies simultaneously.
Sponsors
Changhai Hospital, The Navy Military Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age: Patients aged >=18 years at the time of enrollment; 2. Clinical presentation: Acute non-traumatic abdominal pain within 3 days of onset; 3. Clinical indication: Clinical decision for emergency abdominal CT imaging based on the assessment of the emergency physician; 4. Suspected disease: Clinically suspected of having one or more of the following five target diseases: acute appendicitis, intestinal obstruction (including strangulated intestinal obstruction), acute pancreatitis with suspected pancreatic necrosis, acute cholecystitis, acute vascular disease (aortic dissection, abdominal aortic aneurysm, acute mesenteric ischemia/thrombosis); 5. Informed consent: Able and willing to provide written informed consent; 6. Follow-up feasibility: Expected to be reachable for 30-day follow-up.
Exclusion criteria
Exclusion criteria: 1.Medical Exclusion Criteria: Hemodynamic instability, critical/severe life-threatening conditions, pregnancy, recent relevant imaging studies, contraindications to CT examination. 2.Technical Exclusion Criteria: History of abdominal surgery, metal implants. 3.Administrative Exclusion Criteria: Inability to provide informed consent, restrictions affecting follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy; | — |
Secondary
| Measure | Time frame |
|---|---|
| Diagnostic time;Safety;Emergency Department Length of Stay (ED LOS) ;Diagnostic performance (lesion detection sensitivity, specificity, positive predictive value, negative predictive value, AUC, negative likelihood ratio); | — |
Countries
China
Contacts
Public ContactYun Bian
Changhai Hospital, The Navy Military Medical University
Outcome results
None listed