Title
A new field splitting algorithm for intensity-modulated radiation therapy
Abstract
In this paper, we present an almost linear time algorithm for the problem of splitting an intensity map of radiation (represented as an integer matrix) into multiple subfields (submatrices), subject to a given maximum allowable subfield width, to minimize the total delivery error caused by the splitting. This problem arises in intensity-modulated radiation therapy (IMRT) for cancer treatments. This is the first field splitting result on minimizing the total delivery error of the splitting. Our solution models the problem as a shortest path problem on a directed layered graph, which satisfies the staircase Monge property. Consequently, the resulting algorithm runs in almost linear time and generates an optimal quality field splitting.
Year
DOI
Venue
2007
10.1007/978-3-540-73545-8_4
COCOON
Keywords
Field
DocType
field splitting result,linear time algorithm,intensity-modulated radiation therapy,shortest path problem,optimal quality field splitting,cancer treatment,total delivery error,resulting algorithm,linear time,new field splitting algorithm,integer matrix,satisfiability
Discrete mathematics,Graph,Combinatorics,Shortest path problem,Algorithm,Directed acyclic graph,Time complexity,Integer matrix,Radiation,Intensity-modulated radiation therapy,Block matrix,Mathematics
Conference
Volume
ISSN
ISBN
4598
0302-9743
3-540-73544-5
Citations 
PageRank 
References 
4
0.49
8
Authors
4
Name
Order
Citations
PageRank
Danny Z. Chen19410.26
Mark A. Healy2121.78
Chao Wang340427.12
Xiaodong Wu485977.06