A novel moving phantom insert for image quality assessment in magnetic resonance imaging

Frédérique P.D. van Gameren; Pim T.S. Borman; Cornelis A.T. van den Berg; Mike Cole; Grant R. Koenig; Martin F. Fast; Astrid L.H.M.W. van Lier

doi:10.1016/j.phro.2025.100742

A novel moving phantom insert for image quality assessment in magnetic resonance imaging

Frédérique P.D. van Gameren^*, Pim T.S. Borman, Cornelis A.T. van den Berg, Mike Cole, Grant R. Koenig, Martin F. Fast, Astrid L.H.M.W. van Lier

^*Corresponding author for this work

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Abstract

Dedicated motion compensated Magnetic Resonance Imaging (MRI) for radiotherapy treatment planning promises to mitigate motion effects on imaging. We demonstrate a novel insert for an MRI safe motion phantom, which enables quality assurance of these image strategies. The capability to analyse apparent slice thickness, positional accuracy and motion blur is demonstrated for scenarios with and without motion. A respiratory-compensated scan with a 4 mm trigger-window and 16 mm peak-to-peak (p2p) motion showed a +5.0% deviation from the nominal 2 mm slice thickness. In contrast, a non-compensated scan with 4 mm p2p motion showed a +77.5% deviation, illustrating the effectiveness of motion compensation.

Original language	English
Article number	100742
Journal	Physics and Imaging in Radiation Oncology
Volume	34
DOIs	https://doi.org/10.1016/j.phro.2025.100742
Publication status	Published - Apr 2025

Keywords

Motion compensation
MRI
MRIgRT
Phantom design
Quality assurance

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PIIS2405631625000478Final published version, 2.24 MBLicence: CC BY

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title = "A novel moving phantom insert for image quality assessment in magnetic resonance imaging",

abstract = "Dedicated motion compensated Magnetic Resonance Imaging (MRI) for radiotherapy treatment planning promises to mitigate motion effects on imaging. We demonstrate a novel insert for an MRI safe motion phantom, which enables quality assurance of these image strategies. The capability to analyse apparent slice thickness, positional accuracy and motion blur is demonstrated for scenarios with and without motion. A respiratory-compensated scan with a 4 mm trigger-window and 16 mm peak-to-peak (p2p) motion showed a +5.0% deviation from the nominal 2 mm slice thickness. In contrast, a non-compensated scan with 4 mm p2p motion showed a +77.5% deviation, illustrating the effectiveness of motion compensation.",

keywords = "Motion compensation, MRI, MRIgRT, Phantom design, Quality assurance",

author = "{van Gameren}, {Fr{\'e}d{\'e}rique P.D.} and Borman, {Pim T.S.} and {van den Berg}, {Cornelis A.T.} and Mike Cole and Koenig, {Grant R.} and Fast, {Martin F.} and {van Lier}, {Astrid L.H.M.W.}",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s)",

year = "2025",

month = apr,

doi = "10.1016/j.phro.2025.100742",

language = "English",

volume = "34",

journal = "Physics and Imaging in Radiation Oncology",

issn = "2405-6316",

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TY - JOUR

T1 - A novel moving phantom insert for image quality assessment in magnetic resonance imaging

AU - van Gameren, Frédérique P.D.

AU - Borman, Pim T.S.

AU - van den Berg, Cornelis A.T.

AU - Cole, Mike

AU - Koenig, Grant R.

AU - Fast, Martin F.

AU - van Lier, Astrid L.H.M.W.

PY - 2025/4

Y1 - 2025/4

N2 - Dedicated motion compensated Magnetic Resonance Imaging (MRI) for radiotherapy treatment planning promises to mitigate motion effects on imaging. We demonstrate a novel insert for an MRI safe motion phantom, which enables quality assurance of these image strategies. The capability to analyse apparent slice thickness, positional accuracy and motion blur is demonstrated for scenarios with and without motion. A respiratory-compensated scan with a 4 mm trigger-window and 16 mm peak-to-peak (p2p) motion showed a +5.0% deviation from the nominal 2 mm slice thickness. In contrast, a non-compensated scan with 4 mm p2p motion showed a +77.5% deviation, illustrating the effectiveness of motion compensation.

AB - Dedicated motion compensated Magnetic Resonance Imaging (MRI) for radiotherapy treatment planning promises to mitigate motion effects on imaging. We demonstrate a novel insert for an MRI safe motion phantom, which enables quality assurance of these image strategies. The capability to analyse apparent slice thickness, positional accuracy and motion blur is demonstrated for scenarios with and without motion. A respiratory-compensated scan with a 4 mm trigger-window and 16 mm peak-to-peak (p2p) motion showed a +5.0% deviation from the nominal 2 mm slice thickness. In contrast, a non-compensated scan with 4 mm p2p motion showed a +77.5% deviation, illustrating the effectiveness of motion compensation.

KW - Motion compensation

KW - MRI

KW - MRIgRT

KW - Phantom design

KW - Quality assurance

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U2 - 10.1016/j.phro.2025.100742

DO - 10.1016/j.phro.2025.100742

M3 - Article

AN - SCOPUS:105000045205

SN - 2405-6316

VL - 34

JO - Physics and Imaging in Radiation Oncology

JF - Physics and Imaging in Radiation Oncology

M1 - 100742

ER -

A novel moving phantom insert for image quality assessment in magnetic resonance imaging

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