Ontology highlight
ABSTRACT: Introduction
Multiple positron emission tomography (PET) tracers are available for amyloid imaging, posing a significant challenge to consensus interpretation and quantitative analysis. We accordingly developed and validated a deep learning model as a harmonization strategy.Method
A Residual Inception Encoder-Decoder Neural Network was developed to harmonize images between amyloid PET image pairs made with Pittsburgh Compound-B and florbetapir tracers. The model was trained using a dataset with 92 subjects with 10-fold cross validation and its generalizability was further examined using an independent external dataset of 46 subjects.Results
Significantly stronger between-tracer correlations (P < .001) were observed after harmonization for both global amyloid burden indices and voxel-wise measurements in the training cohort and the external testing cohort.Discussion
We proposed and validated a novel encoder-decoder based deep model to harmonize amyloid PET imaging data from different tracers. Further investigation is ongoing to improve the model and apply to additional tracers.
SUBMITTER: Shah J
PROVIDER: S-EPMC9360199 | biostudies-literature | 2022 Dec
REPOSITORIES: biostudies-literature
Shah Jay J Gao Fei F Li Baoxin B Ghisays Valentina V Luo Ji J Chen Yinghua Y Lee Wendy W Zhou Yuxiang Y Benzinger Tammie L S TLS Reiman Eric M EM Chen Kewei K Su Yi Y Wu Teresa T
Alzheimer's & dementia : the journal of the Alzheimer's Association 20220209 12
<h4>Introduction</h4>Multiple positron emission tomography (PET) tracers are available for amyloid imaging, posing a significant challenge to consensus interpretation and quantitative analysis. We accordingly developed and validated a deep learning model as a harmonization strategy.<h4>Method</h4>A Residual Inception Encoder-Decoder Neural Network was developed to harmonize images between amyloid PET image pairs made with Pittsburgh Compound-B and florbetapir tracers. The model was trained using ...[more]