Portal imaging using modulated treatment beam

Details Portal imaging using modulated treatment beam Portal imaging using modulated treatment beam

2007-11-20

2007-11-20

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Absorption

C378S062000, C378S098900, C378S160000, C378S207000

Reexamination Certificate

active

11394727

ABSTRACT:
A radiation therapy system produces a treatment beam that is detected by an electronic portal imaging device (EPID) after it passes through the subject being treated. A chopper wheel modulates low energy components of the beam while leaving the higher energy components substantially unmodulated. Modulated components in the image signals produced by the EPID are detected and used to produce portal images.

REFERENCES:
patent: 4541106 (1985-09-01), Belanger et al.
patent: 5233990 (1993-08-01), Barnea
patent: 6208712 (2001-03-01), Hernandez-Guerra
patent: 6735273 (2004-05-01), Flohr et al.
patent: 6810107 (2004-10-01), Steinberg
patent: 6836570 (2004-12-01), Young et al.
patent: 6937693 (2005-08-01), Svatos
patent: 7021118 (2006-04-01), Sundermann et al.
patent: 2004/0022363 (2004-02-01), Ghelmansarai
patent: 2004/0068182 (2004-04-01), Misra
patent: 2005/0152495 (2005-07-01), Hesse
patent: 2006/0291621 (2006-12-01), Yan et al.
patent: 2007/0018117 (2007-01-01), Calderon et al.

Affiliated with

Also associated with

Rating

Portal imaging using modulated treatment beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portal imaging using modulated treatment beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portal imaging using modulated treatment beam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3853026