Abstract #2743
Correlation Mapping Technique for Characterizing Pulsatile Cerebrospinal Fluid (CSF) Motion Obtained by Four Dimensional Velocity Mapping
Satoshi Yatsushiro 1 , Akihiro Hirayama 2 , Naokazu Hayashi 2 , Mitsunori Matsumae 2 , Nao Kajihara 3 , Afnizanfizal Abdullah 4 , and Kagayaki Kuroda 1
1
Course of Information Science and
Engineering, Tokai University, Hiratsuka, Kanagawa,
Japan,
2
Department
of Neurosurgery, Tokai University School of Medicine,
Isehara, Kanagawa, Japan,
3
Department
of Radiology, Tokai University Hospital, Isehara,
Knagawa, Japan,
4
Faculty
of Computer Science and Information Systems, Universiti
Teknologi Malaysia, Johor, Malaysia
A novel technique called correlation mapping technique
was proposed to characterize pulsatile cerebrospinal
fluid (CSF) motion obtained by four dimensional velocity
mapping. This technique comprise two functionalities,
delay time mapping, which reflects the delay time in the
velocity wave propagation, and maximum correlation
mapping, which exhibits the similarity of the velocity
wave shape. Application of this technique to 5 healthy
and 5 normal pressure hydrocephalus (NPH) subjects
demonstrated that the percentiles of the area with high
correlation coefficients (> 0.7) in the CSF space was
significantly (p < 0.05) larger in the normal group.
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