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Multiva 1.5T Breast - Beyhekim Devlet Hospital Konya

ExamCard
Bayram, Recep, M.D. Beyhekim Devlet (MOH) Hospital • Turkey
Aytac, Mehmet Yasir Beyhekim Devlet (MOH) Hospital • Turkey
Kirimli, Melahat Philips Healthcare Turkey • Turkey

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ExamCard description

This Multiva 1.5T Release 5.1.7 ExamCard, created by the Bay-Tuna Radiology Center at the Beyhekim Devlet (MOH) Hospital in Konya, is used for breast imaging with the SENSE Breast 7 coil.

The ExamCard contains transverse scans of different weightings: T2W, T1W, DWI and two fat saturation techniques, SPAIR and STIR. For contrast uptake, an eTHRIVE dynamic scan with eight dynamics is acquired.

 

All scans are acquired with a SENSE factor of at least 2 to enable short scan times without compromising in resolution and coverage. With exception of the DWI_SSh scan, all multislice scans are scanned without a slice gap.

 

For the T2W_SPAIR and the eTHRIVE dynamic scan fat saturation is achieved by using a strong SPAIR pulse with a volume shim method.

 

The scan time of each dynamic of the eTHRIVE scan is 57.5 seconds. A 3D dataset is aquired with 200 slices covering the whole breast in feet head direction.

ExamCard overview

 Total ExamCard scan time 23:59 min.
Total ExamCard scan time 23:59 min.

ExamCard images

T2W_SPAIR transverse Scan time 3:24 min. <br> 
TR 4264 ms, TE 70 ms <br> 
FOV 340 x 340 x 150 mm <br> 
voxel size 0.97 x 0.97 x 3 mm <br> 
50 slices, SENSE factor 2 <br>T2W_TSE transverse Scan time 2:28 min. <br> 
TR 4126 ms, TE 120 ms <br> 
FOV 340 x 340 x 150 mm <br> 
voxel size 0.59 x 0.59 x 3 mm <br> 
50 slices, SENSE factor 2 <br>
T2W_SPAIR transverse
T2W_TSE transverse
Scan time 3:24 min.
TR 4264 ms, TE 70 ms
FOV 340 x 340 x 150 mm
voxel size 0.97 x 0.97 x 3 mm
50 slices, SENSE factor 2
Scan time 2:28 min.
TR 4126 ms, TE 120 ms
FOV 340 x 340 x 150 mm
voxel size 0.59 x 0.59 x 3 mm
50 slices, SENSE factor 2
T1W_TSE transverse Scan time 3:20 min. <br> 
TR 540 ms, TE 10 ms <br> 
FOV 340 x 340 x 150 mm <br> 
voxel size 0.66 x 0.66 x 3 mm <br> 
50 slices, SENSE factor 2 <br><br>STIR transverse Scan time 3:06 min. <br> 
TR 7759 ms, TE 70 ms, TI 165 ms <br> 
FOV 340 x 340 x 150 mm <br> 
voxel size 0.66 x 0.66 x 3 mm <br> 
50 slices, SENSE factor 2 <br><br>
T1W_TSE transverse
STIR transverse
Scan time 3:20 min.
TR 540 ms, TE 10 ms
FOV 340 x 340 x 150 mm
voxel size 0.66 x 0.66 x 3 mm
50 slices, SENSE factor 2

Scan time 3:06 min.
TR 7759 ms, TE 70 ms, TI 165 ms
FOV 340 x 340 x 150 mm
voxel size 0.66 x 0.66 x 3 mm
50 slices, SENSE factor 2

DWI_SSh transverse Scan time 3:33 min. <br> 
TR 14207 ms, TE 82 ms <br> 
FOV 340 x 340 x 156 mm <br> 
voxel size 1.42 x 1.42 x 3 mm <br> 
50 slices, SENSE factor 2 <br>
b-values 0 (left) and 600 (right)<br><br>
DWI_SSh transverse
Scan time 3:33 min.
TR 14207 ms, TE 82 ms
FOV 340 x 340 x 156 mm
voxel size 1.42 x 1.42 x 3 mm
50 slices, SENSE factor 2
b-values 0 (left) and 600 (right)

8 dyn_eTHRIVE transverse Scan time 7:42 min. <br> 
TR 6.9 ms, TE 3.4 ms <br> 
FOV 350 x 350 x 200 mm <br> 
voxel size 0.99 x 0.99 x 1.0 mm <br> 
200 slices, SENSE factor 4 <br>
8 dyn_eTHRIVE transverse
Scan time 7:42 min.
TR 6.9 ms, TE 3.4 ms
FOV 350 x 350 x 200 mm
voxel size 0.99 x 0.99 x 1.0 mm
200 slices, SENSE factor 4

Patient preparation and positioning

Before positioning the patient, a venous access with an extention is placed for the contrast administration.

 

The patient is positioned head first in prone position on the SENSE Breast coil 7 with the arms raised above the head. The patients head is supported by the dedicated head rest. The breasts need to hang freely in the coil without compression points.

 

Provide the patient with hearing protection and the nurse call.

Light visor on the coil marker.

Contrast agent / injection protocol

Refer to the contrast agent manufacturer for information on dose and indications for use. 

 

For the 8 dyn_eTHRIVE scan, the first dynamic is aquired without contrast agent. A manual start is defined before the second dynamic to enable the contrast agent administration. The contrast agent is administered and the following seven dynamics are started and acquired without pauses, shortest dynamic scan times. 

Postprocessing

The dynamic eTHRIVE scan can be postprocessed in the ImageAlgebra package to obtain subtracted images. In the subtraction settings, the first dynamic (native) should be subtracted from the following dynamics to enable the visualization of contrast agent minimizing surrounding tissue.

 

In the Review Environment, a contrast uptake curve, Time Intensity Diagram, can be displayed by drawing a Region of Interest (ROI) on a potential lesion.

 

 

 

Related reading:

FieldStrength article: 100 patients per day on one Multiva MRI scanner

 

 

 

 

This content is not for use in the USA



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ExamCard
Multiva 1.5T
Release 5
Body, Breast, diffusion weighted imaging, DWI, eTHRIVE, MR mammography, SENSE Breast 7 coil, Women's health
 

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