Dataset Information

Implementation of a dedicated 1.5?T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.

ABSTRACT:

Purpose

To share our experiences in implementing a dedicated magnetic resonance (MR) scanner for radiotherapy (RT) treatment planning using a novel coil setup for brain imaging in treatment position as well as to present developed core protocols with sequences specifically tuned for brain and prostate RT treatment planning.

Materials and methods

Our novel setup consists of two large 18-channel flexible coils and a specifically designed wooden mask holder mounted on a flat tabletop overlay, which allows patients to be measured in treatment position with mask immobilization. The signal-to-noise ratio (SNR) of this setup was compared to the vendor-provided flexible coil RT setup and the standard setup for diagnostic radiology. The occurrence of motion artifacts was quantified. To develop magnetic resonance imaging (MRI) protocols, we formulated site- and disease-specific clinical objectives.

Results

Our novel setup showed mean SNR of 163?±?28 anteriorly, 104?±?23 centrally, and 78?±?14 posteriorly compared to 84?±?8 and 102?±?22 anteriorly, 68?±?6 and 95?±?20 centrally, and 56?±?7 and 119?±?23 posteriorly for the vendor-provided and diagnostic setup, respectively. All differences were significant (p?>?0.05). Image quality of our novel setup was judged suitable for contouring by expert-based assessment. Motion artifacts were found in 8/60 patients in the diagnostic setup, whereas none were found for patients in the RT setup. Site-specific core protocols were designed to minimize distortions while optimizing tissue contrast and 3D resolution according to indication-specific objectives.

Conclusion

We present a novel setup for high-quality imaging in treatment position that allows use of several immobilization systems enabling MR-only workflows, which could reduce unnecessary dose and registration inaccuracies.

SUBMITTER: Mengling V

PROVIDER: S-EPMC7892740 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Publications

Implementation of a dedicated 1.5 T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.

Mengling Veit V Bert Christoph C Perrin Rosalind R Masitho Siti S Weissmann Thomas T Mansoorian Sina S Siavooshhaghighi Hadi H Janka Rolf R Doussin Sylvain S Habatsch Melanie M Fietkau Rainer R Putz Florian F

Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] 20201025 3

<h4>Purpose</h4>To share our experiences in implementing a dedicated magnetic resonance (MR) scanner for radiotherapy (RT) treatment planning using a novel coil setup for brain imaging in treatment position as well as to present developed core protocols with sequences specifically tuned for brain and prostate RT treatment planning.<h4>Materials and methods</h4>Our novel setup consists of two large 18-channel flexible coils and a specifically designed wooden mask holder mounted on a flat tabletop ...[more]

PMID: 33103231

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Dataset Information

Implementation of a dedicated 1.5?T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.

Purpose

Materials and methods

Results

Conclusion

Publications

Implementation of a dedicated 1.5 T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Dataset Information

Implementation of a dedicated 1.5?T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.

Purpose

Materials and methods

Results

Conclusion

Publications

Implementation of a dedicated 1.5 T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Implementation of a dedicated 1.5 T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position.