Comparison of imaging modalities aortic graft infection

Modality	Sensitivity (%)	Specificity (%)	PPV/NPV (%)	Advantages	Limitations
CTA	70 to 80	85 to 90	70/85	Accessible High-definition arterial anatomy Most widely used	Contrast bolus Low sensitivity for slime infection Not specific for early infections
MRI	75 to 85	90 to 95	95/80	Readily available Detailed information for arterial anatomy and surrounding tissues	Metal artifact in endografts Not widely used Cannot be used with metal implants
WBC nuclear	95 to 100	90 to 92	85/80	Extremely sensitive Can help distinguish early infection from inflammation	Low resolution No anatomic information
PET-CT	90 to 95	88 to 92	90/95	Very sensitive and specific Can diagnose early infection	Time consuming False positive in early postoperative period
DUS	<50	Low	50/40	Readily available No contrast No radiation	User dependent Low sensitivity No use in first 6 weeks

CTA: computed tomographic angiography; DUS: duplex ultra sound; MRI: magnetic resonance imaging; NPV: negative predictive value; PET-CT: positron emission tomography-computed tomography; PPV: positive predictive value; WBC: white blood cell.

Graphic 142720 Version 1.0

خرید پکیج

Comparison of imaging modalities aortic graft infection