ArticleJournal of healthcare engineering2017
An Evaluation of the Benefits of Simultaneous Acquisition on PET/MR Coregistration in Head/Neck Imaging.
Article in Journal of healthcare engineering, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Prognostic utility ofEuropean journal of nuclear medicine and molecular imaging · 2025Trial
- Automatic Tumor Segmentation With a Convolutional Neural Network in Multiparametric MRI: Influence of Distortion Correction.Tomography (Ann Arbor, Mich.) · 2019Trial
- A Novel Marker-Based Registration Method for Simultaneous Preclinical PET/MR with a Non-Stationary PET Detector.Research square · 2026Article
- White matter microstructural alterations and brain metabolism distributions in Parkinson's disease.Brain imaging and behavior · 2025Article
- Role ofCancers · 2024Review
- Evaluation of a Dedicated Radiofrequency Carotid PET/MRI Coil.Journal of clinical medicine · 2022Article
- Hippocampal subfield imaging and fractional anisotropy show parallel changes in Alzheimer's disease tau progression using simultaneous tau-PET/MRI at 3T.Alzheimer's & dementia (Amsterdam, Netherlands) · 2021Article
- Simultaneous FDG-PET/MRI detects hippocampal subfield metabolic differences in AD/MCI.Scientific reports · 2020Article
- Gliosis and Neurodegenerative Diseases: The Role of PET and MR Imaging.Frontiers in cellular neuroscience · 2020Review
- AI-based applications in hybrid imaging: how to build smart and truly multi-parametric decision models for radiomics.European journal of nuclear medicine and molecular imaging · 2019Review
- Magnetic Particle Imaging meets Computed Tomography: first simultaneous imaging.Scientific reports · 2019Article
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Authors and funding
6 authors.
Funding
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Abstract
Coregistration of multimodal diagnostic images is crucial for qualitative and quantitative multiparametric analysis. While retrospective coregistration is computationally intense and could be inaccurate, hybrid PET/MR scanners allow acquiring implicitly coregistered images. Aim of this study is to assess the performance of state-of-the-art coregistration methods applied to PET and MR acquired as single modalities, comparing the results with the implicitly coregistration of a hybrid PET/MR, in complex anatomical regions such as head/neck (HN). A dataset consisting of PET/CT and PET/MR subsequently acquired in twenty-three patients was considered: performance of rigid (RR) and deformable (DR) registration obtained by a commercial software and an open-source registration package was evaluated. Registration accuracy was qualitatively assessed in terms of visual alignment of anatomical structures and qualitatively measured by the Dice scores computed on segmented tumors in PET and MRI. The resulting scores highlighted that hybrid PET/MR showed higher registration accuracy than retrospectively coregistered images, because of an overall misalignment after RR, unrealistic deformations and volume variations after DR. DR revealed superior performance compared to RR due to complex nonrigid movements of HN district. Moreover, simultaneous PET/MR offers unique datasets serving as ground truth for the improvement and validation of coregistration algorithms, if acquired with PET/CT.
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