Nonlinear Geometric Warping of the Mask Image: A New Method for Reducing Misregistration Artifacts in Digital Subtraction Angiography

Nobushige Hayashi,Toyohiko Sakai,Manabu Kitagawa,Rika Inagaki,Norihiro Sadato,Yasushi Ishii,Yasuhiro Nishimoto,Masato Tanaka,Tetsuya Fukushima,Hiroyuki Komuro,Hisakazu Ogura,Hidenori Kobayashi,Toshihiko Kubota

Nonlinear Geometric Warping of the Mask Image: A New Method for Reducing Misregistration Artifacts in Digital Subtraction Angiography

1998

Nobushige Hayashi
Toyohiko Sakai
Manabu Kitagawa
Rika Inagaki
Norihiro Sadato
Yasushi Ishii
Yasuhiro Nishimoto
Masato Tanaka
Tetsuya Fukushima
Hiroyuki Komuro
Hisakazu Ogura
Hidenori Kobayashi
Toshihiko Kubota

Purpose: Misregistration artifact is the major cause of image degradation in digital subtraction angiography (DSA). The purpose of this study was to evaluate the efficacy of a newly developed nonlinear geometric warping method to reduce misregistration artifact in DSA.

Keywords:

Radiology
Region of interest
Image quality
Image warping
Image processing
Medicine
Digital subtraction angiography
digital angiography
image degradation
Nonlinear system
non linearite

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