Feasibility of a Synthetic MR Imaging Sequence for Spine Imaging

Vargas, Maria Isabel; Drake-Pérez, Marta; Delattre, Bénédicte; Boto, José; Lövblad, Karl-Olof; Boudabous, Sana

doi:10.3174/ajnr.a5728

Cited by 17 publications

(13 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results were different from those reported by Vargas et al. ; they reported lower SNRs in the dorsolumbar region for synthetic MRI than for conventional sequences (24). The SNR can be drastically altered by multiple MR parameters, such as field of view, slice thickness, field strength (28), and so on.…”

Section: Discussioncontrasting

confidence: 99%

“…Recently, some studies that applied synthetic MRI to the knee have reported good diagnostic ability, which was generally accepted by radiologists and clinical doctors (19–23). A study reported that synthetic MRI had a lower signal-to-noise ratio (SNR) in the lumbar region than did conventional MRI (24). However, the study was performed using a 1.5-T MR scanner.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthetic MRI of the lumbar spine at 3.0 T: feasibility and image quality comparison with conventional MRI

Zhang

Zhu

et al. 2019

Acta Radiol

View full text Add to dashboard Cite

Background Synthetic magnetic resonance imaging (MRI), which can generate multiple morphologic MR images as well as quantitative maps from a single sequence, is not widely used in the spine at 3.0 T. Purpose To investigate the feasibility of synthetic MRI of the lumbar spine in clinical practice at 3.0 T. Material and Methods Eighty-four patients with lumbar diseases underwent conventional T1-weighted images, T2-weighted images, short-tau inversion recovery (STIR) images, and synthetic MRI of the lumbar spine at 3.0 T. The quantitative and qualitative image quality and agreement for detection of spinal lesions between conventional and synthetic MRI were compared by two radiologists. Results The signal-to-noise ratios of synthetic MRI showed an inferior image quality in the vertebrae and disc, whereas were higher for spinal canal and fat on the synthetic T1-weighted, T2-weighted, and STIR images. The contrast-to-noise ratios of the synthetic MRI was superior to conventional sequences, except for the vertebrae–disc contrast-to-noise ratio on T1-weighted imaging ( P = 0.005). Image quality assessments showed that synthetic MRI had greater STIR fat suppression ( P < 0.001) and fluid brightness ( P = 0.014), as well as higher degree of artifacts ( P < 0.001) and worse spatial resolution ( P = 0.002). The inter-method agreements for detection of spinal lesions were substantial to perfect (kappa, 0.614–0.925). Conclusion Synthetic MRI is a feasible method for lumbar spine imaging in a clinical setting at 3.0-T MR. It provides morphologic sequences with acceptable image quality, good agreement with conventional MRI for detection of spinal lesions and quantitative image maps with a slightly shorter acquisition time compared with conventional MRI.

show abstract

Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthetic MRI of the lumbar spine at 3.0 T: feasibility and image quality comparison with conventional MRI

Zhang

Zhu

et al. 2019

Acta Radiol

View full text Add to dashboard Cite

show abstract

“…In the future, the optimization of the spinal synthetic MRI (SyMRI) is highly recommended. SyMRI is a technique based on a quantitative approach, that allows the quantification of absolute-tissue physical properties by the acquisition of a single sequence obtaining images with different weighted (T1, T2, STIR, PD, PSIR); this means a potentially significant reduction of the acquisition time with the aim, still under investigation, to not reduce the diagnostic accuracy [ 24 , 25 ].…”

Section: Imaging Techniquesmentioning

confidence: 99%

Spinal vascular lesions: anatomy, imaging techniques and treatment

Ros

Picchi

Ferrazzoli

et al. 2021

European Journal of Radiology Open

View full text Add to dashboard Cite

Vascular myelopathies include different aetiology and mechanism of damage.• The level of the lesion and the localization within the SC correlates with the clinical symptoms.• CT, MRI and angiography are essential for diagnosis and treatment playing a complementary role.• MRI is the gold standard for the evaluation of spinal cord lesions.• Spinal angiography is the gold standard for evaluation of spinal cord vasculature and vascular malformations.

show abstract

“…64 Feasibility studies comparing synthetic and conventionally acquired 2D sequences of the spine showed good interobserver agreement, although with greater artifacts. 65,66 To date, synthetic CT data obtained from MRI have not been used successfully with neuronavigational software and are still under investigation. 67 Thorough evaluation of synthetic MRI in spine applications may yield further time savings and expanded applications for both 2D and 3D protocols.…”

Section: Further Directionsmentioning

confidence: 99%

3D MRI of the Spine

Sahr

Tan

Sneag

2021

Semin Musculoskelet Radiol

View full text Add to dashboard Cite

Three-dimensional (3D) magnetic resonance imaging of the spine is now clinically feasible due to technological advancements. Its advantages over two-dimensional imaging include higher in-plane spatial resolution and the ability for reformation in any plane that enables time savings in image acquisition and aids more accurate interpretation. Multispectral 3D techniques for imaging around metal are sometimes useful for evaluating anatomy adjacent to spinal fixation hardware. 3D gradient-recalled echo sequences, including ultrashort or zero time to echo sequences, can provide osseous detail similar to conventional computed tomography.

show abstract

Feasibility of a Synthetic MR Imaging Sequence for Spine Imaging

Cited by 17 publications

References 20 publications

Synthetic MRI of the lumbar spine at 3.0 T: feasibility and image quality comparison with conventional MRI

Synthetic MRI of the lumbar spine at 3.0 T: feasibility and image quality comparison with conventional MRI

Spinal vascular lesions: anatomy, imaging techniques and treatment

3D MRI of the Spine

Contact Info

Product

Resources

About