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Ingenia 3.0T Thoracic aorta steady state CE-MRA - Cleveland Clinic

Flamm, Scott, M.D. Cleveland Clinic • USA
Bolen, Michael, M.D. Cleveland Clinic • USA
Wang, Hui, Ph.D. Philips Healthcare • USA

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ExamCard purpose

This  ExamCard is intended for thoracic aorta imaging using steady state MRA.

It includes 3D T1W IR with ECG-triggering and navigator respiratory compensation.

It is designed for Ingenia 3.0T release 4.1.3 with the dS Torso coil solution.


It was developed to overcome challenges of standard first-pass (FP) MRA uses a 3D single or multiphase first-pass MRA sequence with an extracellular contrast agent without ECG gating. It requires one or more breath holds and the timing for acquisition needs to be quite perfect in order to capture the bolus. Motion artifacts often occur, especially in the aortic root, due to neglect of cardiac gating and respiratory motion compensation.

ExamCard overview

 Total scan time is 4:23 min.<br>
Total scan time is 4:23 min.


The steady state MRA is performed using a T1-weighted 3D inversion recovery sequence with ECG-triggering and navigator respiratory compensation.


The inversion time in SS-MRA is set to create the highest contrast between the thoracic vessels and the surrounding tissue, and is chosen using a Look-Locker sequence. Usually, the inversion time is in the range of 230-300 ms for a 3.0T scanner.


IR_TFE_LL is the Look Locker sequence to determine optimal inversion time.

Scan time is 11 sec, voxel size 2.73 x 2.86 x 10.0 mm.


3D_SS_CE_MRA is the steady state MRA sequence.

Scan time is 2:44 min, voxel size 1.00 x 1.00 x 3.00 mm.


 Thoracic aorta
Thoracic aorta

Patient preparation

The dS Torso coil solution is used for this examination. It consists of the Posterior coil integrated in the table and the lightweight Anterior coil.

Contrast agent / injection protocol

Ablavar (Gadofosveset trisodium) was used as the contrast agent.

Refer to the manufacturer for guidance on dose and use.




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May 13, 2014

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Ingenia 3.0T
Release 4
Aorta, dS Torso coil solution, dStream, MRA, Vascular

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