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Ingenia MR-guided brachytherapy cervix - AUH

ExamCard
Tanderup, Kari, Ph.D. Aarhus University Hospital, Dept of Oncology • Denmark
Lindegaard, Jacob Aarhus University Hospital, Dept of Oncology • Denmark
Pedersen, Erik, PhD, DMSc Aarhus University Hospital, Dept. Radiology • Denmark

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ExamCard purpose

Aarhus University Hospital uses 3D MRI-guided brachytherapy in their cervical cancer radiation treatment according to the GEC-ESTRO recommendations. Brachytherapy is done after EBRT. These ExamCards are used for the (pre) brachytherapy MRI scans. More information and a detailed workflow can be found in the FieldStrength article:  Enhancing cervical cancer treatment with 3D MRI-guided brachytherapy

 

These ExamCards for the (pre) brachytherapy scans were created on Ingenia 1.5T and Ingenia 3.0T systems on Release 5.1.7.2.

ExamCard overview

 Ingenia 1.5T ExamCard<br>
Total scan time  16:32 minutes<br><br> Ingenia 3.0T ExamCard<br>
Total scan time 12:34 minutes<br><br>
Ingenia 1.5T ExamCard
Total scan time 16:32 minutes

Ingenia 3.0T ExamCard
Total scan time 12:34 minutes

 

 

In addition to the T2W images used for planning, a 3D mDIXON scan has been added to the ExamCard, with the reconstruction of water images providing fat saturated T1W images of the whole pelvis region. On Ingenia 1.5T the 3D mDIXON FFE scan reconstructs 115 slices at a resolution of 1x1x2 mm. SENSE  is used in two directions, resulting in a breathhold scan time of 16 seconds.

ExamCard images (Ingenia 1.5T, patient with cervix cancer)

Pre-EBRT MRI

T2W_TSE_ax-4mm   pre EBRT Scan time 4:24 min. <br> 
TR 9772 ms, TE 90 ms <br> 
FOV  240 x 400 x 153 mm <br> 
Voxels 0.63 x 0.63 x 4.0 mm <br> 
35 slices, SENSE factor 1.5 <br><br>T2W MultiVane XD sag   pre EBRT Scan time 3:44 min. <br> 
TR 4000 ms, TE 115 ms <br> 
FOV  300 x 300 x 166 mm <br> 
Voxels 0.85 x 0.85 x 4.0 mm <br> 
31 slices<br><br>
T2W_TSE_ax-4mm pre EBRT
T2W MultiVane XD sag pre EBRT
Scan time 4:24 min.
TR 9772 ms, TE 90 ms
FOV 240 x 400 x 153 mm
Voxels 0.63 x 0.63 x 4.0 mm
35 slices, SENSE factor 1.5

Scan time 3:44 min.
TR 4000 ms, TE 115 ms
FOV 300 x 300 x 166 mm
Voxels 0.85 x 0.85 x 4.0 mm
31 slices

MR images with brachytherapy treatment plan in transversal and coronal view

Para-axial T2W_TSE Scan time 4:24 min. <br> 
TR 9772 ms, TE 90 ms <br> 
FOV  240 x 400 x 153 mm <br> 
Voxels 0.63 x 0.63 x 4.0 mm <br> 
35 slices, SENSE factor 1.5 <br>Para-coronal T2W_TSE Scan time 4:09 min. <br> 
TR 4608 ms, TE 90 ms <br> 
FOV  300 x 300 x 192 mm <br> 
Voxels 0.89 x 0.89 x 5.0 mm <br> 
35 slices <br>
Para-axial T2W_TSE
Para-coronal T2W_TSE
Scan time 4:24 min.
TR 9772 ms, TE 90 ms
FOV 240 x 400 x 153 mm
Voxels 0.63 x 0.63 x 4.0 mm
35 slices, SENSE factor 1.5
Scan time 4:09 min.
TR 4608 ms, TE 90 ms
FOV 300 x 300 x 192 mm
Voxels 0.89 x 0.89 x 5.0 mm
35 slices

Patient positioning

The patient is positioned on the patient support with the brachytherapy applicator in place.

 

Position the dS Torso coil on the patients lower abdomen. Provide the patient with the nurse call and the necessary hearing protection.

 

Related reading



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ExamCard
Ingenia 1.5T, Ingenia 3.0T
Release 5
Body, brachytherapy, cervical cancer, Cervix, dStream, Female pelvis, MR Therapy, MR-RT, MultiVane, MultiVane XD, Oncology, Pelvis, Uterus, Women's health
 

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