| Specific Anatomic Region | Pulmonary Artery |
| Application | R/O pulmonary embolism |
| Author | Remy-Jardin M et al. |
| Reference Source | Radiology 1992; 185:381-387 and Radiology 1996; 200:699-706 |
| Scanner Used | Siemens Somatom Plus |
| Injection Rate | 7ml/sec |
| Contrast Volume and Type | 120ml of Telebrix-30 |
| Area Scanned | Level of aortic arch through lung bases |
| Scan Delay | 10sec |
| Length of Spiral (time) | 24-32sec |
| Slice Thickness | 3-5mm |
| Table Speed/Pitch | 5mm/sec with a pitch of 1 |
| Reconstruction Interval | 2-3mm |
| 3D Technique Used | None |
Comment: - Scanning is done from the aortic arch through the pulmonary vessels. With newer Spiral CT scanners a collimation of 3mm is preferred.
- We do not ever inject at 7ml/sec and prefer 3ml/sec for PE studies
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