3DCRT vs CFIMRT (Whole neck irradiation)

Whole neck irradiation has several difficulties. So many institutes use IMRT, but some articles emphasize advantage of 3DCRT or forward planed IMRT. In bellow, I will show some reference plan for comparisons.

CFIMRT

One isocenter. 7 ports irradiation without subsegents. Wedge filter isn't used.

 

3D-CRT using a one-point setup technique

Portaluri M, Fucilli FI, Castagna R, et.al. Three-dimensional conformal radiotherapy for locally advanced (stage II and worse) head-and-neck cancer: dosimetric and clinical evaluation. Int J Radiat Oncol Biol Phys. 2006.

This method consists of 10-12 fixed ports. Some ports use wedge filter.

 

A forward-planned treatment technique by N. Lee et.al.

Lee N, Akazawa C, Akazawa P, et.al. A forward-planned treatment technique using multisegments in the treatment of head-and-neck cancer. Int J Radiat Oncol Biol Phys. 2004 Jun 1;59(2):584-94.

 

This template uses 18MV, 6MV, and several wedge filters. Model dependence is high. So I culd not plan being similar according to the article.

IMRT

intensity map

 

port1-9

 

 CFIMRT is simple, and enable to plan highly conformal plan.

last modification date: 2006/06/25