MAGiC sequence in Neuroradiology: is the right moment for “one-step” examination?

Congress:

ECR 2019

Poster Number:

C-3161

Type:

Educational Exhibit

Keywords:

Neoplasia, Inflammation, Diagnostic procedure, MR, Neuroradiology brain, CNS

Authors:

C. Ciardi¹, G. B. berte², S. Cottonaro³, T. Verdolotti¹, G. M. Di Lella⁴, L. Ficociello⁴, C. Colosimo⁴; ¹Roma/IT, ²rometta marea, Me/IT, ³Catania/IT, ⁴Rome/IT

DOI:

10.26044/ecr2019/C-3161

DOI-Link:

https://dx.doi.org/10.26044/ecr2019/C-3161

Fig. 1: Glioblastoma multiforme (WHO, grade IV). a), b) e c): conventional sequences...

Fig. 2: MDME sequence diagram with both saturation and acquisition phases.

Fig. 3: Slice thickness and image quality relation: a), b), c) e d): MAGiC images T1,...

Fig. 4: Multiple sclerosis: MAGiC DIR advantages in lesion load evaluation, both in...

Learning objectives

To describe technical features of synthetic Magnetic Resonance Imaging (MRI) obtained with MAGiC technology (Magnetic Resonance Image Compilation - GE Healthcare) and to evaluate its utility for routine neuroimaging as compared to conventional MR imaging.

Background

MAGiC technology applied to brain imaging for neurological and neurosurgical diseases represents a significant technological development. It allows to obtain, with a single sequence, multiple image contrasts using half of the time required for conventional sequences acquisition. A basic examination with acceptable image quality is acquired with MAGiC sequence in about 6 minutes: in fact, whilethe scan time for conventional sequences (FLAIR, FSE T1-w and FSE T2-w) is over 10 minutes, MAGiC can produce the same contrast images in about 6 minutes. It is possible...

Findings and procedure details

MAGiC technology refers to a sequence developed by the manufacturer General Electric (GE) that allows to obtain, with a single sequence, images weighted on multiple parameters in about 6 minutes (minimum time).It is based on the "synthethic MRI" simulation method in which images are created after acquisition of MR study starting from parametric maps based on three parameters: the longitudinal relaxation time (T1), the transverse relaxation time (T2) and the proton density (DP).Consequently, it's necessary to modify TE, TR and TI parameters in order to...

Conclusion

Strong points of MAGiC technology are the reduction of overall examination acquisition time and the possibility to correct technical parameters and the images contrast view. The need to study complex neurological and neurosurgical patients through multiplanar imaging and "advanced" sequences (diffusion, perfusion and spectroscopy) limits MAGiC sequence use in routine clinical practice.

Personal information

References

Tanenbaum LN,Tsiouris AJ,Johnson AN,Naidich TP,DeLano MC,Melhem ER,Quarterman P,Parameswaran SX,Shankaranarayanan A,Goyen M,Field AS.SyntheticMRIforClinicalNeuroimaging: Results of theMagneticResonanceImage Compilation (MAGiC) Prospective, Multicenter, Multireader Trial.AJNR Am J Neuroradiol.2017 Jun;38:1103-1110.