Four-dimensional deformable image registration using trajectory modeling

Edward Castillo, Richard Castillo, Josue Martinez, Maithili Shenoy, Thomas Guerrero

Research output: Contribution to journalArticle

137 Citations (Scopus)

Abstract

A four-dimensional deformable image registration (4D DIR) algorithm, referred to as 4D local trajectory modeling (4DLTM), is presented and applied to thoracic 4D computed tomography (4DCT) image sets. The theoretical framework on which this algorithm is built exploits the incremental continuity present in 4DCT component images to calculate a dense set of parameterized voxel trajectories through space as functions of time. The spatial accuracy of the 4DLTM algorithm is compared with an alternative registration approach in which component phase to phase (CPP) DIR is utilized to determine the full displacement between maximum inhale and exhale images. A publically available DIR reference database (http://www.dir-lab.com) is utilized for the spatial accuracy assessment. The database consists of ten 4DCT image sets and corresponding manually identified landmark points between the maximum phases. A subset of points are propagated through the expiratory 4DCT component images. Cubic polynomials were found to provide sufficient flexibility and spatial accuracy for describing the point trajectories through the expiratory phases. The resulting average spatial error between the maximum phases was 1.25 mm for the 4DLTM and 1.44 mm for the CPP. The 4DLTM method captures the long-range motion between 4DCT extremes with high spatial accuracy.

Original languageEnglish (US)
Pages (from-to)305-327
Number of pages23
JournalPhysics in Medicine and Biology
Volume55
Issue number1
DOIs
StatePublished - Jan 7 2010
Externally publishedYes

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Four-Dimensional Computed Tomography
Databases
Articular Range of Motion
Thorax

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Castillo, E., Castillo, R., Martinez, J., Shenoy, M., & Guerrero, T. (2010). Four-dimensional deformable image registration using trajectory modeling. Physics in Medicine and Biology, 55(1), 305-327. https://doi.org/10.1088/0031-9155/55/1/018

Four-dimensional deformable image registration using trajectory modeling. / Castillo, Edward; Castillo, Richard; Martinez, Josue; Shenoy, Maithili; Guerrero, Thomas.

In: Physics in Medicine and Biology, Vol. 55, No. 1, 07.01.2010, p. 305-327.

Research output: Contribution to journalArticle

Castillo, E, Castillo, R, Martinez, J, Shenoy, M & Guerrero, T 2010, 'Four-dimensional deformable image registration using trajectory modeling', Physics in Medicine and Biology, vol. 55, no. 1, pp. 305-327. https://doi.org/10.1088/0031-9155/55/1/018
Castillo, Edward ; Castillo, Richard ; Martinez, Josue ; Shenoy, Maithili ; Guerrero, Thomas. / Four-dimensional deformable image registration using trajectory modeling. In: Physics in Medicine and Biology. 2010 ; Vol. 55, No. 1. pp. 305-327.
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