Noise Filtering and Testing Illustrated Using a Multi-Dimensional Partial Volume Model of MR Data

2004 ◽  
Author(s):  
N.A. Thacker ◽  
M. Pokrić ◽  
D.C. Williamson
Keyword(s):  
Noise Filtering ◽  
Partial Volume ◽  
Volume Model

scholarly journals Partial-volume model for determining white matter and gray matter cerebral blood volume for analysis of gliomas

2006 ◽  
Vol 23 (3) ◽  
pp. 257-266 ◽  
Author(s):  
Michael C. Lee ◽  
Soonmee Cha ◽  
Susan M. Chang ◽  
Sarah J. Nelson
Keyword(s):  
White Matter ◽  
Blood Volume ◽  
Gray Matter ◽  
Cerebral Blood Volume ◽  
Partial Volume ◽  
Volume Model

Magnetic Resonance Image Tissue Classification Using a Partial Volume Model

NeuroImage ◽  
2001 ◽  
Vol 13 (5) ◽  
pp. 856-876 ◽  
Author(s):  
David W. Shattuck ◽  
Stephanie R. Sandor-Leahy ◽  
Kirt A. Schaper ◽  
David A. Rottenberg ◽  
Richard M. Leahy
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Image ◽  
Tissue Classification ◽  
Partial Volume ◽  
Volume Model

scholarly journals Partial volume model for brain MRI scan using MP2RAGE

2017 ◽  
Vol 38 (10) ◽  
pp. 5115-5127 ◽  
Author(s):  
Quentin Duché ◽  
Hervé Saint‐Jalmes ◽  
Oscar Acosta ◽  
Parnesh Raniga ◽  
Pierrick Bourgeat ◽  
...  
Keyword(s):  
Brain Mri ◽  
Mri Scan ◽  
Partial Volume ◽  
Volume Model

Quantitative accuracy of serotonergic neurotrans-mission imaging with high-resolution 123I SPECT

2004 ◽  
Vol 43 (06) ◽  
pp. 185-189 ◽  
Author(s):  
J. T. Kuikka
Keyword(s):  
High Resolution ◽  
Scatter Correction ◽  
Region Of Interest ◽  
Binding Potential ◽  
Partial Volume ◽  
Therapeutic Drugs ◽  
Quantitative Accuracy ◽  
Critical Error ◽  
Statistical Noise

Summary Aim: Serotonin transporter (SERT) imaging can be used to study the role of regional abnormalities of neurotransmitter release in various mental disorders and to study the mechanism of action of therapeutic drugs or drugs’ abuse. We examine the quantitative accuracy and reproducibility that can be achieved with high-resolution SPECT of serotonergic neurotransmission. Method: Binding potential (BP) of 123I labeled tracer specific for midbrain SERT was assessed in 20 healthy persons. The effects of scatter, attenuation, partial volume, mis-registration and statistical noise were estimated using phantom and human studies. Results: Without any correction, BP was underestimated by 73%. The partial volume error was the major component in this underestimation whereas the most critical error for the reproducibility was misplacement of region of interest (ROI). Conclusion: The proper ROI registration, the use of the multiple head gamma camera with transmission based scatter correction introduce more relevant results. However, due to the small dimensions of the midbrain SERT structures and poor spatial resolution of SPECT, the improvement without the partial volume correction is not great enough to restore the estimate of BP to that of the true one.

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