A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy
Background and purpose: The use of magnetic resonance imaging (MRI) for radiotherapy (RT) simulation has grown, prompting quality assurance (QA) guidelines by the Institute of Physics and Engineering in Medicine (IPEM) and the American Association of Physicists in Medicine (AAPM). This study compare...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Physics and Imaging in Radiation Oncology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405631625000120 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832583078085656576 |
|---|---|
| author | Meshal Alzahrani David A Broadbent Irvin Teh Bashar Al-Qaisieh Emily Johnstone Richard Speight |
| author_facet | Meshal Alzahrani David A Broadbent Irvin Teh Bashar Al-Qaisieh Emily Johnstone Richard Speight |
| author_sort | Meshal Alzahrani |
| collection | DOAJ |
| description | Background and purpose: The use of magnetic resonance imaging (MRI) for radiotherapy (RT) simulation has grown, prompting quality assurance (QA) guidelines by the Institute of Physics and Engineering in Medicine (IPEM) and the American Association of Physicists in Medicine (AAPM). This study compares a novel multimodality anthropomorphic phantom to an American College of Radiology (ACR) phantom for a subset of these MRI-specific QA tests in RT. Materials and methods: A novel 3D-printed multimodality head-and-neck anthropomorphic phantom was compared to an ACR large MRI phantom. IPEM and AAPM-recommended QA tests were conducted, including informatics/connectivity/data transfer, MRI-CT registration, end-to-end QA, and signal-to-noise ratio (SNR)/percentage integral uniformity (PIU) assessments using RT accessories. Results: Both phantoms were suitable for informatics/connectivity/data transfer. In MRI-CT registration, no errors were found; the ACR phantom offered more quantitative landmarks, while the anthropomorphic phantom provided limited structures. Both phantoms achieved target registration errors (TREs) below 0.97 mm and dice similarity coefficient (DSC) values above 0.9, meeting guidelines. For end-to-end QA, the anthropomorphic phantom facilitated dose measurements of 1.994 Gy versus a calculated 2.01 Gy (−0.8 %). SNR and PIU assessments showed higher values in radiology setups compared to RT setups for both phantoms. Conclusions: Multimodality anthropomorphic phantoms compatible with dosimetric equipment allow realistic end-to-end QA, unlike the ACR phantom. While the ACR phantom is suitable for informatics and MRI-CT registration, anthropomorphic phantoms better represent clinical scenarios. For comprehensive QA, both ACR and anthropomorphic phantoms are required. Additionally, large field-of-view (FOV) phantoms are crucial for evaluating large FOV MRI distortions. |
| format | Article |
| id | doaj-art-3752bd7cec4d4e5399d06420c601846b |
| institution | Kabale University |
| issn | 2405-6316 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics and Imaging in Radiation Oncology |
| spelling | doaj-art-3752bd7cec4d4e5399d06420c601846b2025-01-29T05:01:29ZengElsevierPhysics and Imaging in Radiation Oncology2405-63162025-01-0133100707A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapyMeshal Alzahrani0David A Broadbent1Irvin Teh2Bashar Al-Qaisieh3Emily Johnstone4Richard Speight5Department of Radiologic Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, Leeds, UK; Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK; Corresponding authors at: Department of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, St. James’s University Hospital, Leeds LS9 7TF, UK.Department of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, Leeds, UK; Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UKLeeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UKDepartment of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, Leeds, UKChristie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester, UKDepartment of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, Leeds, UK; Corresponding authors at: Department of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, St. James’s University Hospital, Leeds LS9 7TF, UK.Background and purpose: The use of magnetic resonance imaging (MRI) for radiotherapy (RT) simulation has grown, prompting quality assurance (QA) guidelines by the Institute of Physics and Engineering in Medicine (IPEM) and the American Association of Physicists in Medicine (AAPM). This study compares a novel multimodality anthropomorphic phantom to an American College of Radiology (ACR) phantom for a subset of these MRI-specific QA tests in RT. Materials and methods: A novel 3D-printed multimodality head-and-neck anthropomorphic phantom was compared to an ACR large MRI phantom. IPEM and AAPM-recommended QA tests were conducted, including informatics/connectivity/data transfer, MRI-CT registration, end-to-end QA, and signal-to-noise ratio (SNR)/percentage integral uniformity (PIU) assessments using RT accessories. Results: Both phantoms were suitable for informatics/connectivity/data transfer. In MRI-CT registration, no errors were found; the ACR phantom offered more quantitative landmarks, while the anthropomorphic phantom provided limited structures. Both phantoms achieved target registration errors (TREs) below 0.97 mm and dice similarity coefficient (DSC) values above 0.9, meeting guidelines. For end-to-end QA, the anthropomorphic phantom facilitated dose measurements of 1.994 Gy versus a calculated 2.01 Gy (−0.8 %). SNR and PIU assessments showed higher values in radiology setups compared to RT setups for both phantoms. Conclusions: Multimodality anthropomorphic phantoms compatible with dosimetric equipment allow realistic end-to-end QA, unlike the ACR phantom. While the ACR phantom is suitable for informatics and MRI-CT registration, anthropomorphic phantoms better represent clinical scenarios. For comprehensive QA, both ACR and anthropomorphic phantoms are required. Additionally, large field-of-view (FOV) phantoms are crucial for evaluating large FOV MRI distortions.http://www.sciencedirect.com/science/article/pii/S2405631625000120Magnetic resonance imagingRadiotherapyMRI in RTQuality assuranceACR phantomMultimodal anthropomorphic phantom |
| spellingShingle | Meshal Alzahrani David A Broadbent Irvin Teh Bashar Al-Qaisieh Emily Johnstone Richard Speight A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy Physics and Imaging in Radiation Oncology Magnetic resonance imaging Radiotherapy MRI in RT Quality assurance ACR phantom Multimodal anthropomorphic phantom |
| title | A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy |
| title_full | A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy |
| title_fullStr | A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy |
| title_full_unstemmed | A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy |
| title_short | A novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy |
| title_sort | novel multimodality anthropomorphic phantom enhances compliance with quality assurance guidelines for magnetic resonance imaging in radiotherapy |
| topic | Magnetic resonance imaging Radiotherapy MRI in RT Quality assurance ACR phantom Multimodal anthropomorphic phantom |
| url | http://www.sciencedirect.com/science/article/pii/S2405631625000120 |
| work_keys_str_mv | AT meshalalzahrani anovelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT davidabroadbent anovelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT irvinteh anovelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT basharalqaisieh anovelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT emilyjohnstone anovelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT richardspeight anovelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT meshalalzahrani novelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT davidabroadbent novelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT irvinteh novelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT basharalqaisieh novelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT emilyjohnstone novelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy AT richardspeight novelmultimodalityanthropomorphicphantomenhancescompliancewithqualityassuranceguidelinesformagneticresonanceimaginginradiotherapy |