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Ingenia 1.5T Middle ear - Meander Medical Center

ExamCard
Heggelman, Ben, M.D. Meander Medisch Centrum Amersfoort • Netherlands

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ExamCard purpose

This ExamCard was created for imaging the middle ear, for instance in case of cholesteatoma, on Ingenia 1.5T at release 5.1.7.


Imaging cholesteatoma, benign tumors of the middle ear, has been a challenge. We used to do CT, but then we were unsure if we were looking at an inflammation or a cholesteatoma. Also determining if residual cholesteatoma exists after surgery or visualizing recurrence used to be difficult. Adding Diffusion TSE in our MRI protocol now helps us to address this.

  

Diffusion TSE is less sensitive to susceptibility differences than previously used EPI sequences. We appreciate the high resolution and the robustness of the sequence. Also our ENT (ear, nose, throat) physicians are excited about the high resolution.

 

In addition to Diffusion TSE for the inner ear region, also full coverage sagittal T1W, T2W MultiVane XD and DWI, as well as dedicated T2W TSE are included in this ExamCard.



ExamCard overview

EC overview collapsed SmartLine steps Total ExamCard scan time: 13:23 minutesEC overview expanded SmartLine steps Total ExamCard scan time: 13:23 minutes
EC overview collapsed SmartLine steps
EC overview expanded SmartLine steps
Total ExamCard scan time: 13:23 minutes
Total ExamCard scan time: 13:23 minutes

ExamCard images of patient with cholesteatoma

T2W TSE Scan time 2:25 min. <br> 
TR 3627 ms, TE 100 ms <br> 
FOV  200 x 169 x 59 mm <br> 
Voxel size 0.45 x 0.45 x 3.0 mm <br> 
18 slices <br>DWI TSE Scan time 00:51 min. <br> 
TR 4278 ms, TE 129 ms <br> 
FOV  230 x 230 x 131 mm <br> 
Voxel size 0.9 x 0.9 x 5.0 mm <br> 
22 slices, SENSE factor 2.0 <br>
T2W TSE
DWI TSE
Scan time 2:25 min.
TR 3627 ms, TE 100 ms
FOV 200 x 169 x 59 mm
Voxel size 0.45 x 0.45 x 3.0 mm
18 slices
Scan time 00:51 min.
TR 4278 ms, TE 129 ms
FOV 230 x 230 x 131 mm
Voxel size 0.9 x 0.9 x 5.0 mm
22 slices, SENSE factor 2.0

Patient preparation

Position the patient head first, supine on the patient support. Place the head of the patient on the dS Base. Provide the patient with the knee support, hearing protection and the nurse call before positioning the dS Head top on the dS Base.

Post-processing / analysis

SmartLine post-processing steps have been added to two scans. For the

  • DWI_TSE, ImageAlgebra subtraction; and
  • DWI_FFE_DIFFUSIE, ImageAlgebra subtraction and Diffusion ADC calculation were added.

The SmartLine steps start automatically without user interaction after the reconstruction of the original image series.



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ExamCard
Ingenia 1.5T
Release 5
Brain, cholesteatoma, Diffusion TSE, dStream, Ear, MultiVane XD, Neuro
 

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