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3.0T Pelvis imaging - University of Bonn

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Morakkabati-Spitz, Nuschin, M.D. Bonn, University of Bonn

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Imaging at 3.0T has tremendous potential both in scanning speed and in the diagnostic capabilities that high spatial resolution provides. Two techniques for Achieva 3.0T pelvis imaging in routine clinical use are developed: an ultra-fast method and a high resolution technique.

 

 

ExamCard description

 

Fast sequence:

In scanning the female pelvis speed is criticial in the reduction of patient-induced motion artifacts and also in improving throughput.

 

We created a 3.0T sequence that affords much greater speed while maintaining the spatial resolution of our initial 3.0T protocol. This ultra-fast technique is based on a single-shot TSE sequence and combined with halfscan, SENSE factor 3 and 75 degrees refocusing flip angle.

 

The scan time is reduced to 39 seconds.

The sequence is so fast that it is unnessary to use i.v. n-butyl-scopolamine to halt peristaltic motion.

Standard protocol Fast sequence
Standard protocol
Fast sequence

 

High resolution sequence:

Higher spatial resolution leads to more clinically relevant information that may be valuable in visualizing suspicious lesions.

 

We developed and optimized a high resolution 3.0T T2-weighted technique of the female pelvis. We combined our initial T2-weighted sequence with SENSE and reduction of the refocusing flip angle from 180 degrees to 75 degrees resulting in reduced RF power. Fine-tuning TR, TE, NSA and halfscan optimized the sequence even further.

 

The spatial resolution is 3.6 times higher than our initial protocol yet the scan time of 4:03 minutes is identical.

Standard protocol High spatial resolution sequence
Standard protocol
High spatial resolution sequence

 

 

More information in the Clinical View article:


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ExamCard
Achieva 3.0T
Release 1, Release 2
Bladder, Body, Oncology, Pelvis, Prostate, Uterus, Women's health
 

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