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Related Experiment Video

Updated: Apr 19, 2026

Full- versus Sub-Regional Quantification of Amyloid-Beta Load on Mouse Brain Sections

Full- versus Sub-Regional Quantification of Amyloid-Beta Load on Mouse Brain Sections

Published on: May 19, 2022

Partial volume correction in quantitative amyloid imaging.

Yi Su¹, Tyler M Blazey¹, Abraham Z Snyder²

¹Department of Radiology, Washington University School of Medicine, Saint Louis, MO 63110, USA.

|December 9, 2014

Summary

This summary is machine-generated.

Partial volume correction improves detection of amyloid deposition changes in dementia research. The regional spread function technique showed higher accuracy for Pittsburgh compound B (PiB) PET imaging analysis.

Keywords:

Amyloid imaging PET Partial volume correction PiB

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Last Updated: Apr 19, 2026

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Non-invasive Imaging and Analysis of Cerebral Ischemia in Living Rats Using Positron Emission Tomography with 18F-FDG

Published on: December 28, 2014

Area of Science:

Neurology
Medical Imaging
Biochemistry

Background:

Amyloid imaging is crucial for diagnosing dementing disorders.
Positison emission tomography (PET) scanners have limited spatial resolution, causing partial volume effects (PVEs) in signal measurement.
There is no consensus on the necessity or implementation of PVE correction techniques in amyloid imaging.

Purpose of the Study:

To evaluate two partial volume correction (PVC) techniques: a two-component method and a regional spread function (RSF) method.
To assess the effectiveness of these PVC techniques in simulated and human Pittsburgh compound B (PiB) PET imaging data.
To determine the accuracy and impact of PVC on detecting changes in amyloid deposition.

Main Methods:

Simulated and human Pittsburgh compound B (PiB) PET imaging data were utilized.
A two-component partial volume correction technique was applied.
A regional spread function (RSF) technique was applied for PVE correction.

Main Results:

Both PVC techniques successfully compensated for partial volume effects.
Both methods improved the detection of subtle changes in PiB retention.
The RSF technique demonstrated higher accuracy when applied to simulated data.
PiB retention estimates are dependent on the chosen correction technique, necessitating standardization for cross-group comparisons.

Conclusions:

Appropriate partial volume correction can enhance the detection of amyloid deposition changes.
Despite potential increases in sensitivity to registration and segmentation inaccuracies, PVC is beneficial.
Standardization of PVC methods is essential for reliable comparisons in amyloid imaging research.