Cerebral and carotid artery disease
Conditions
Interventions
Double low dose group:Double low dose study of dynamic scanning with diluted iso-osmolar contrast medium in head and neck CT angiography
Conventional dose group:Routine head and neck CTA, no low-dose examination
Sponsors
Changzhou Wujin People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Patients aged 18-80 years. 2. Patients with BMI < 30 kg / m2. 3. Patients with suspected or confirmed head and neck artery disease. 4. For patients with subarachnoid hemorrhage and intracranial aneurysm found by CTA, CTA was reexamined 7-14 days after onset to observe whether there was cerebral vasospasm 5. The patients who volunteered to join the study signed the informed consent form and had good compliance.
Exclusion criteria
Exclusion criteria: 1. Patients allergic to iodine containing contrast media. 2. Patients with severe hyperthyroidism, renal insufficiency and decompensated cardiac insufficiency. 3. Patients with obvious moving artifacts. 4. Patients with failed angiography.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| CT value of blood vessel; | — |
Secondary
| Measure | Time frame |
|---|---|
| Signal-to-Noise Ratio, SNR;Contrast-to-Noise Ratio, CNR;body Mass Index, BMI;total amount of intake of contrast medium;radiation dose;venous contamination;image quality (subjective evaluation); | — |
Countries
China
Contacts
Public ContactWu Honglin
Changzhou Wujin People's Hospital
Outcome results
None listed