Pulmonary angiogram (CTPA) PRINT

History: suspected pulmonary embolus, elevated D-dimer, chest pain accompanied by shortness of breath.

Localizer(s)	Frontal (lateral if required)
Scan Series	Chest/lungs
Scan Phase	Pulmonary arterial
Instructions	Non-valsalva suspension or shallow breathing
Contrast Agent	300, 350, or 370
Volume/Rate	80ml / 4.0ml per sec
Contrast Delay	Bolus tracked to pulmonary artery
Start	Below lung bases
End	Apices
Scan Type	Helical
kVp	100-120
Target CTDIvol	<10 mGy
Max CTDIvol	20 mGy
Max Scan Time	15 sec
Pitch	0.9-1.75:1
DFOV	To body wall
Send to PACS	AX 1x1 standard
All series must cover entire scan volume in same FOV	COR 2x2 standard
	SAG 3x3 standard
	3D VRT or MIP

Axial

Sagittal