Abstract:
Objective: To determine whether there is a difference in the prevalence of non-tumoral perfusion defects (NTPD) in left hepatic lobe
during CT arterial portography (CTAP) through splenic (SA) and superior mesenteric artery (SMA) injection. Methods and patients: For
the preoperative evaluation, 59 patients (20 females, 39 males) who either have colorectal carcinoma metastasis (n: 42) or hepatocellular
carcinoma (n: 17) underwent CTAP examination. Patients were divided into two groups (SA and SMA) according to the injection artery. The
presence and type of NTPD in the left hepatic lobe were determined and compared. Results: There were significant differences in peripherally
located wedge shaped, perihilar-periligamentous and pericholecystic NTPD, but no significant difference was found in lobar/segmental defects
between the groups. Conclusions: Our study demonstrated lower prevalence of NTPD in the left hepatic lobe in CTAPs performed through
SA injection and we think that this could be explained by the streamlining of portal blood flow.
