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Ingenia 1.5T MR-RT Brain MR simulation for RT planning - UMC Utrecht

Philippens, Marielle, Dr. Ir. UMC Utrecht • Netherlands

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ExamCard description

This R5.1.7 brain ExamCard is used on Ingenia 1.5T MR-RT for patients where MR simulation is requested prior to stereotactic radiotherapy as primary treatment.

ExamCard overview

Scans are acquired in 3D to allow reconstruction of images in all directions and allow a high registration accuracy.


Axial T1W 3D TFE is a T1 reference scan for the sequence after gadolinium injection.


On axial T2W 3D TSE FLAIR, edematous tissue appears with a high signal intensity, such as the tumor bulk and surrounding tissue. CSF is suppressed, which enables distinction between high T2 in the tissue and CSF.


Axial T2W TSE gd is acquired immediately after gadolinium injection and prior to T1W 3D TFE contrast scan.


On axial T1W 3D TFE gd, metastases generally show contrast agent leakage, which gives a high signal intensity. The region with high signal intensity after contrast injection is the GTV for metastases. OAR can be distinguished: pituitary gland, brain stem, chiasm, optic nerve and eye ball.

ExamCard images

Click on an image to enlarge
Axial 3D T1w TFE pre-contrast Scan time 4:31 min.<br>
Voxels 1.0 x 1.0 x 1.0 mmAxial 3D T2w TSE FLAIR Scan time 7:55 min.<br>
Voxels 0.6 x 0.6 x 0.6 mm
Axial 3D T1w TFE pre-contrast
Axial 3D T2w TSE FLAIR
Scan time 4:31 min.
Voxels 1.0 x 1.0 x 1.0 mm
Scan time 7:55 min.
Voxels 0.6 x 0.6 x 0.6 mm
Axial T2w TSE post-contrast Scan time 2:06 min.<br>
Voxels 0.5 x 0.6 x 5.0 mm<br>Axial 3D T1w TFE post-contrast Scan time 4:31 min.<br>
Voxels 1.0 x 1.0 x 1.0 mm<br>
Axial T2w TSE post-contrast
Axial 3D T1w TFE post-contrast
Scan time 2:06 min.
Voxels 0.5 x 0.6 x 5.0 mm
Scan time 4:31 min.
Voxels 1.0 x 1.0 x 1.0 mm

Patient preparation

Patients are imaged in a stereotactic mask. Flex L Coils in combination with integrated FlexCoverage Posterior coil are used to image the patient in treatment position.



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Oct 23, 2017

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Ingenia MR-RT
Release 5
Brain, dStream, EBRT, MR simulation, MRI simulation, MR-RT, Neuro, Oncology, radiation oncology, radiation therapy, RT planning

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