Clinical results of 3-dimensional conformal radiotherapy combined with transarterial chemoembolization for hepatocellular carcinoma in the cirrhotic patients.

PURPOSE: Recent reports have shown that a portion of the liver can tolerate higher radiation doses, which can be further accomplished by the application of 3-dimensional conformal radiotherapy (3-DCRT). The purpose of this study was to investigate the efficacy and toxicity of 3-DCRT combined with transcatheter arterial chemoembolization (TACE) for HCC in the cirrhotic patients. METHODS AND MATERIALS: From 1994 to 2000, 50 HCC patients with liver cirrhosis (LC) were included in this study.

Intensity modulation technique using the complementary boost-fields for ethmoid sinus cancer.

Purpose: To explore a static intensity-modulated radiation therapy (IMRT) technique of a more homogeneous isodose distribution to an irregular-shaped tumour of the ethmoid sinus, with concomitantly sparing the adjacent critical normal organs including the orbit.

Methods And Materials: We conducted a static IMRT technique adding 2 or smaller complementary boost-fields to the underdosed volume in the PTV, which resulted from complete blocking of the orbits in all coplanar or non-coplanar main ports of the standard 3-D CRT. The standard 3-D CRT plans (Plan A) and IMRT plans adding complementary boost fields (Plan B) were established for 10 patients with ethmoid sinus cancer.