Arterial hemodynamic analysis on non-enhanced magnetic resonance angiogram using optical flow

Authors:
Akiyoshi Yamamoto;Hyoungseop Kim;Joo Kooi Tan;Seiji Ishikawa
Affiliations:
Kyushu Institute of Technology, Kitakyushu, Japan 804-8550;Kyushu Institute of Technology, Kitakyushu, Japan 804-8550;Kyushu Institute of Technology, Kitakyushu, Japan 804-8550;Kyushu Institute of Technology, Kitakyushu, Japan 804-8550
Venue:
Artificial Life and Robotics
Year:
2012

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Abstract

Peripheral arterial disease (PAD) is one of the reasons caused to the lower extremity atherosclerotic disease. Its diagnosis is needed to obtain much kind of the information of vascular morphology as well as the blood flow information based on hemodynamics. The diagnosis of the PAD using magnetic resonance imaging (MRI) equipment without contrast medium is available as a useful visual screening in clinical practice. In this paper, we propose a novel method for visualizing hemodynamics to arterial images obtained by a non-contrast enhanced magnetic resonance angiography (MRA) based on the Lucas---Kanade optical flow with the image pyramid processing, and satisfied experimental results are obtained.