Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator
Background and purpose: The 1.5 Tesla (T) Magnetic Resonance Linear Accelerator (MRL) provides an innovative modality for improved cardiac imaging when planning radiation treatment. No MRL based cardiac atlases currently exist, thus, we sought to comprehensively characterize cardiac substructures, i...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
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| Series: | Physics and Imaging in Radiation Oncology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405631623000957 |
| _version_ | 1797397567138430976 |
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| author | Aronne M. Schottstaedt Eric S. Paulson Jason C. Rubenstein Xinfeng Chen Eenas A. Omari X Allen Li Chris J. Schultz Lindsay L. Puckett Clifford G. Robinson Filippo Alongi Elizabeth M. Gore William A. Hall |
| author_facet | Aronne M. Schottstaedt Eric S. Paulson Jason C. Rubenstein Xinfeng Chen Eenas A. Omari X Allen Li Chris J. Schultz Lindsay L. Puckett Clifford G. Robinson Filippo Alongi Elizabeth M. Gore William A. Hall |
| author_sort | Aronne M. Schottstaedt |
| collection | DOAJ |
| description | Background and purpose: The 1.5 Tesla (T) Magnetic Resonance Linear Accelerator (MRL) provides an innovative modality for improved cardiac imaging when planning radiation treatment. No MRL based cardiac atlases currently exist, thus, we sought to comprehensively characterize cardiac substructures, including the conduction system, from cardiac images acquired using a 1.5 T MRL and provide contouring guidelines. Materials and methods: Five volunteers were enrolled in a prospective protocol (NCT03500081) and were imaged on the 1.5 T MRL with Half Fourier Single-Shot Turbo Spin-Echo (HASTE) and 3D Balanced Steady-State Free Precession (bSSFP) sequences in axial, short axis, and vertical long axis. Cardiac anatomy was contoured by (AS) and confirmed by a board certified cardiologist (JR) with expertise in cardiac MR imaging. Results: A total of five volunteers had images acquired with the HASTE sequence, with 21 contours created on each image. One of these volunteers had additional images obtained with 3D bSSFP sequences in the axial plane and additional images obtained with HASTE sequences in the key cardiac planes. Contouring guidelines were created and outlined. 15–16 contours were made for the short axis and vertical long axis. The cardiac conduction system was demonstrated with eleven representative contours. There was reasonable variation of contour volume across volunteers, with structures more clearly delineated on the 3D bSSFP sequence. Conclusions: We present a comprehensive cardiac atlas using novel images acquired prospectively on a 1.5 T MRL. This cardiac atlas provides a novel resource for radiation oncologists in delineating cardiac structures for treatment with radiotherapy, with special focus on the cardiac conduction system. |
| first_indexed | 2024-03-09T01:11:59Z |
| format | Article |
| id | doaj.art-b3f01d2ce4d3450e9338c150e9bacc88 |
| institution | Directory Open Access Journal |
| issn | 2405-6316 |
| language | English |
| last_indexed | 2024-03-09T01:11:59Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics and Imaging in Radiation Oncology |
| spelling | doaj.art-b3f01d2ce4d3450e9338c150e9bacc882023-12-11T04:16:31ZengElsevierPhysics and Imaging in Radiation Oncology2405-63162023-10-0128100504Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear AcceleratorAronne M. Schottstaedt0Eric S. Paulson1Jason C. Rubenstein2Xinfeng Chen3Eenas A. Omari4X Allen Li5Chris J. Schultz6Lindsay L. Puckett7Clifford G. Robinson8Filippo Alongi9Elizabeth M. Gore10William A. Hall11Medical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United States; Corresponding author at: Medical College of Wisconsin, 8701 W Watertown Plank Rd, Milwaukee, WI 53226, United States.Medical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United States; Medical College of Wisconsin, Department of Radiology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiology, Milwaukee, WI, United States; Medical College of Wisconsin, Department of Cardiology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesWashington University, Department of Radiation Oncology, St. Louis, MO, United StatesIRCCS Sacro Cuore Don Calabria Hospital, Department of Radiation Oncology, Negrar-Verona, Italy & University of Brescia, Faculty of Medicine, Brescia, ItalyMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesMedical College of Wisconsin, Department of Radiation Oncology, Milwaukee, WI, United StatesBackground and purpose: The 1.5 Tesla (T) Magnetic Resonance Linear Accelerator (MRL) provides an innovative modality for improved cardiac imaging when planning radiation treatment. No MRL based cardiac atlases currently exist, thus, we sought to comprehensively characterize cardiac substructures, including the conduction system, from cardiac images acquired using a 1.5 T MRL and provide contouring guidelines. Materials and methods: Five volunteers were enrolled in a prospective protocol (NCT03500081) and were imaged on the 1.5 T MRL with Half Fourier Single-Shot Turbo Spin-Echo (HASTE) and 3D Balanced Steady-State Free Precession (bSSFP) sequences in axial, short axis, and vertical long axis. Cardiac anatomy was contoured by (AS) and confirmed by a board certified cardiologist (JR) with expertise in cardiac MR imaging. Results: A total of five volunteers had images acquired with the HASTE sequence, with 21 contours created on each image. One of these volunteers had additional images obtained with 3D bSSFP sequences in the axial plane and additional images obtained with HASTE sequences in the key cardiac planes. Contouring guidelines were created and outlined. 15–16 contours were made for the short axis and vertical long axis. The cardiac conduction system was demonstrated with eleven representative contours. There was reasonable variation of contour volume across volunteers, with structures more clearly delineated on the 3D bSSFP sequence. Conclusions: We present a comprehensive cardiac atlas using novel images acquired prospectively on a 1.5 T MRL. This cardiac atlas provides a novel resource for radiation oncologists in delineating cardiac structures for treatment with radiotherapy, with special focus on the cardiac conduction system.http://www.sciencedirect.com/science/article/pii/S2405631623000957Radiation Oncology Cardiac AtlasMRgRT1.5T MRLCardiac conduction systemContouring guidelines |
| spellingShingle | Aronne M. Schottstaedt Eric S. Paulson Jason C. Rubenstein Xinfeng Chen Eenas A. Omari X Allen Li Chris J. Schultz Lindsay L. Puckett Clifford G. Robinson Filippo Alongi Elizabeth M. Gore William A. Hall Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator Physics and Imaging in Radiation Oncology Radiation Oncology Cardiac Atlas MRgRT 1.5T MRL Cardiac conduction system Contouring guidelines |
| title | Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator |
| title_full | Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator |
| title_fullStr | Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator |
| title_full_unstemmed | Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator |
| title_short | Development of a comprehensive cardiac atlas on a 1.5 Tesla Magnetic Resonance Linear Accelerator |
| title_sort | development of a comprehensive cardiac atlas on a 1 5 tesla magnetic resonance linear accelerator |
| topic | Radiation Oncology Cardiac Atlas MRgRT 1.5T MRL Cardiac conduction system Contouring guidelines |
| url | http://www.sciencedirect.com/science/article/pii/S2405631623000957 |
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