Superselective intra-arterial chemotherapy for advanced maxillary sinus cancer: an evaluation of arterial perfusion with computed tomographic arteriography and of tumor response.

OBJECTIVE: The purpose of our study was to elucidate the relationship between arterial perfusion in advanced maxillary sinus cancer which was opacified by superselective intra-arterial computed tomographic arteriography (IA-CTA) and the tumor response to intra-arterial chemotherapy. METHODS: Superselective IA-CTA was performed to identify the feeding arteries and their perfusion in advanced maxillary sinus cancer in 10 patients. Cisplatin was selectively infused into these feeding arteries, except for the internal carotid artery. RESULTS: The results were assessed in 9 of the 10 patients, and a complete response was achieved in 5 patients in whom either the entire tumor, or most of the tumor, was perfused by the branches of the external carotid artery. In 4 patients with a partial response, the residual tumors were seen in the territory of the perfusion defect or in the perfusion territory of the internal carotid artery. CONCLUSION: Superselective IA-CTA is a useful technique to correctly identify the intratumoral perfusion and to predict tumor response to the intra-arterial chemotherapy of advanced maxillary sinus cancer.