| Specific Anatomic Region | Pulmonary Artery |
| Application | Suspected pulmonary embolism |
| Author | Fishman EK |
| Reference Source | Personal communication |
| Scanner Used | Siemens Somatom Plus 4 |
| Injection Rate | 3 ml/sec |
| Contrast Volume and Type | 120ml of Omnipaque 350 |
| Area Scanned | Level above aortic arch through lung bases |
| Scan Delay | 25 sec |
| Length of Spiral (time) | 30-35 sec |
| Slice Thickness | 3 mm |
| Table Speed/Pitch | 5 mm/sec |
| Reconstruction Interval | 2 mm |
| 3D Technique Used | Volume Rendering |
| Comment: We will scan from the lung bases upward to take advantage of better patient cooperation with breathholding in this critical region. |