Academic radiology
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We evaluated the effect of gravity on intrahepatic perfusion (IHP) in patients with a port-catheter system (PCS) implanted for hepatic arterial infusion chemotherapy (HAIC). Using fused single photon-emission computed tomographic (SPECT)/computed tomographic (CT) images, we compared IHP after the injection of technetium-99m-labeled macroaggregated albumin (Tc-99m-MAA) via a PCS with the patient in the upright and decubitus positions. ⋯ Although the patient posture affected IHP by changing the position of the infusion catheter side hole in the liver, gravity had no significant effect on IHP in patients bearing an implantable PCS for the delivery of HAIC.