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1. (US20190038916) PRE-OPTIMIZATION METHOD FOR QUICK PREDICTION OF ACHIEVABILITY OF CLINICAL GOALS IN INTENSITY MODULATED RADIATION THERAPY

Office : United States of America
Application Number: 16076721 Application Date: 01.03.2017
Publication Number: 20190038916 Publication Date: 07.02.2019
Publication Kind : A1
Prior PCT appl.: Application Number:PCTEP2017054680 ; Publication Number: Click to see the data
IPC:
A61N 5/10
A61B 6/00
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
5
Radiation therapy
10
X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
6
Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
CPC:
A61B 6/50
A61B 6/5294
A61N 2005/1074
A61N 5/1031
A61N 5/1045
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: Vaitheeswaran RANGANATHAN
Prashant KUMAR
Karl Antonin BZDUSEK
Priority Data:
Title: (EN) PRE-OPTIMIZATION METHOD FOR QUICK PREDICTION OF ACHIEVABILITY OF CLINICAL GOALS IN INTENSITY MODULATED RADIATION THERAPY
Abstract: front page image
(EN)

An achievability estimate is computed for an intensity modulated radiation therapy (IMRT) geometry (32) including a target volume, an organ at risk (OAR), and at least one radiation beam. Namely, a geometric complexity (GC) metric is computed for the IMRT geometry that compares a number NT of beamlets of the at least one radiation beam available in the IMRT geometry for irradiating the target volume and a number n of these beamlets that also pass through the OAR. A GC metric ratio is computed of the GC metric for the IMRT geometry and the GC metric for a reference IMRT geometry for which an IMRT plan is achievable. If the clinician is satisfied with this estimate then optimization (38) of an IMRT plan for the IMRT geometry (32) is performed. Alternatively, a reference IMRT geometry is selected by comparing the GC metric with GC metrics of past IMRT plans.


Also published as:
CN108697905EP3426343WO/2017/153211