Percutaneous hepatic perfusion Percutaneous hepatic perfusion Percutaneous hepatic perfusion (PHP) is a regionalized, minimally-invasive approach to cancer treatment currently undergoing Phase II and Phase III clinical testing. PHP treats a variety of hepatic tumors by isolating the liver and exposing the organ to high-dose chemotherapy. As demonstrated in clinical trials, patients treated by PHP can tolerate much higher doses of chemotherapeutic agents than those receiving traditional systemic chemotherapy without increased toxicities. Using a system of catheters and filters, PHP isolates the liver from the circulatory system and infuses a chemotherapeutic agent directly to the liver via the hepatic artery. The venous effluent from
Adjective phrase that have their head adjective on the right side of the phrase: The labels on the nodes in the trees are acronyms: A = adjective, Adv = adverb, AP = adjective phrase, N = noun/pronoun, P = preposition, PP = prepositional phrase. The constituency trees identify these phrases as adjective phrases by labeling the top node with AP, and the dependency trees accomplish the same thing by positioning the A node at the top of the tree. The following trees illustrate the structure of head-initial adjective phrases, i.e. adjective phrases that have their head on the left side of the