Photon-counting detector computed tomography angiogram more accurately characterizes lower extremity runoff than...

In this single-center, retrospective cohort study, we compared lower extremity photon-counting detector computed tomography (PCD-CT; n = 43) and conventional energy-integrating detector CT angiograms (EID-CTA; n = 46) with traditional on-table angiograms to assess whether there was a difference in the ability to characterize the target tibial artery (TA) for potential lower extremity bypass between imaging modalities. In PCD-CT angiography vs angiography, a different TA was identified in two patients (4.6%), whereas in EID-CTA vs angiography, a different TA was identified in 10 patients (21.7%; P = .03). PCD-CT angiography may allow for more accurate identification of the TA for lower extremity bypass than EID-CTA.