Specific Anatomic Region | Abdominal Aorta |
Application | Evaluate AAA |
Author | Zeman RK et al. |
Reference Source | AJR 1995; 164:917-922 |
Scanner Used | GE HiSpeed CT |
Injection Rate | 2.5ml/sec |
Contrast Volume and Type | 125ml of Iohexol 300 |
Area Scanned | Diaphragm to symphysis pubis |
Scan Delay | 40sec |
Length of Spiral (time) | 32sec |
Slice Thickness | 3mm first 20sec, 7mm rest of study |
Table Speed/Pitch | 3mm/sec and 7mm/sec with a pitch of 1:1 |
Reconstruction Interval | 33-43% overlap |
3D Technique Used | MIP, shaded-surface, sum of pixel (ray-sum) |
Comment: - In other articles these authors found that MPR and 3D imaging were very useful.
- With newer scanners a single spiral is done without changing the slice thickness & keeping it 3mm throughout the study.
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