MRI of the cervical spine with 3D gradient echo sequence at 3 T: initial experience

Xiao, Lei; Siu, C.W.J.; Yeung, K.; Leung, Andrew; Yuen, Ming Keung; Wong, Yiu Chung

doi:10.1016/j.crad.2015.05.012

Cited by 10 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the high signal‐to‐noise‐ratio (SNR) for cartilage, these sequences were mostly used for knee examinations. Multiple studies evaluated these sequences and compared them to 2D sequences for the knee and the spine, showing an equal or slightly reduced image quality, depending on the anatomical structure. The short T 2 relaxation constants of musculoskeletal tissue made the use of high turbo‐spin echo factors problematic due to the fast signal decay .…”

mentioning

confidence: 99%

Accelerated MRI of the Lumbar Spine Using Compressed Sensing: Quality and Efficiency

Bratke

Rau

Weiss

et al. 2018

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Background Decreasing MRI scan time is a key factor to increase patient comfort and compliance as well as the productivity of MRI scanners. Purpose/Hypothesis Compressed sensing (CS) should significantly accelerate 3D scans. This study evaluated the clinical application and cost effectiveness of accelerated 3D T2 sequences of the lumbar spine. Study Type Prospective, cross‐sectional, observational. Population Twenty healthy volunteers and 10 patients. Field Strength/Sequence A 3D T2 TSE sequence, identical 3D sequences with three different parallel imaging and CS accelerating factors, and 2D TSE sequences as a clinical reference were obtained on a 3T scanner. Assessment Three readers evaluated the sequences for delineation of anatomical structures and image quality. A quantitative analysis consisting of root mean square error, structural similarity index, signal‐to‐noise ratio, and contrast‐to‐noise ratio were performed. The scan times were used to calculate cost differences for each sequence. Statistical Tests An analysis of variance with repeated measurements and the Friedman test were used to test for potential differences between the sequences. Post‐hoc analysis was made with the chi‐squared and Tukey–Kramer test. Results CS with factor 4.5 results in unchanged image quality compared to the T2 TSE for volunteers and patients (overall image impression: 4.75 vs. 4.20 [P = 0.73] and 4.90 vs. 4.47 [P = 0.44]). The CS 4.5 scan is 167 seconds (–39%) faster than the 3D and 216.5 seconds (–45%) faster than the 2D sequences. No significant differences was found for the diagnostic certainty in the volunteers and patients between 2D TSE and 3D CS 4.5 (P = 0.89 and P = 0.43). A reduction of scan time to 148 seconds (CS 8) was still rated acceptable for most diagnosis. Data Conclusion CS accelerates the 3D T2 without compromising image quality. The 3D sequences offer comparable diagnostic quality to the clinical 2D standard with less scan time (–45%), potentially increasing the productivity of MRI scanners. Level of Evidence: 1 Technical Efficacy: Stage 6 J. Magn. Reson. Imaging 2019;49:e164–e175.

show abstract

mentioning

confidence: 99%

Accelerated MRI of the Lumbar Spine Using Compressed Sensing: Quality and Efficiency

Bratke

Rau

Weiss

et al. 2018

Magnetic Resonance Imaging

View full text Add to dashboard Cite

show abstract

“…This protocol was performed to provide more accurate and detailed calculation compared to previous studies, which used small circles as ROIs placed in the spinal cord structures. 4,10 Quantitative image assessment included signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR) and nonuniformity (NU). 13 SNR measures the differences in signal intensities between the tissue of interest and the background noise.…”

Section: Image Processingmentioning

confidence: 99%

“…3 3D techniques offer benefits of high spatial resolution, high signal-to-noise ratio (SNR) and the absence of crosstalk between sections; however, they require long acquisition times and therefore they are often not suitable for clinical use. 4 2D T1-and T2-weighted fast spin echo (FSE) sequences at 3T have been shown to produce better visualisation of the cervical spinal cord than those at 1.5T. 2 White et al found that T2*-weighted multi gradient echo (GRE) sequence produced good grey matter (GM) and white matter (WM) tissue contrast at 1.5T, 3 but a detailed comparison of GRE sequences for cervical spinal cord imaging at 3T has not been reported.…”

Section: Introductionmentioning

confidence: 99%

“…5 New gradient technology (80mT/m gradients with >200mT/m/s slew rates), allows further development of spoiled T2* gradient combined echo sequences (known as MERGE, Multiple Echo Data Image Combination (MEDIC) or multi-echo fast field echo (M-FFE)) to achieve high image resolution and short acquisition times. 3,6 A small comparative study by Xiao et al, showed that 3D FFE could visualise the internal anatomy of the cervical spinal cord better than 2D FSE, 4 but a 2D/3D comparison of the same sequences was not performed.…”

Section: Introductionmentioning

confidence: 99%

“…New sequences have been developed to provide improved T2‐weighted contrast, such as 2D Multiple Echo Recombined Gradient Echo (MERGE), and three‐dimensional (3D) spin echo sequences such as CUBE, VISTA and SPACE 3 . 3D techniques offer benefits of high spatial resolution, high signal‐to‐noise ratio (SNR) and the absence of crosstalk between sections; however, they require long acquisition times and therefore they are often not suitable for clinical use 4 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison between 2D and 3D MEDIC for human cervical spinal cord MRI at 3T

Asiri

Dimpudus

Atcheson

et al. 2020

J of Medical Radiation Sci

View full text Add to dashboard Cite

Introduction: High-resolution magnetic resonance imaging (MRI) of the cervical spinal cord is important to provide accurate diagnosis and pathological assessment of injuries. MEDIC (Multiple Echo Data Image Combination) sequences have been used in clinical MRI; however, a comparison of the performance of 2D and 3D MEDIC for cervical spinal cord imaging has not been reported. The aim of this study is to compare axial 2D and 3D MEDIC for the visualisation of the grey matter (GM) and white matter (WM) of the human cervical spinal cord. Methods: Eight healthy participants were scanned using Siemens Prisma fit 3T MRI. T2*-weighted gradient spoiled 2D and 3D MEDIC sequences were acquired at 0.4 × 0.4 × 3.0 and 0.3 × 0.3 × 3.0 mm resolutions, with the acquisition times of 6 and 7 min, respectively. Quantitative analyses of the images were made based on the image signal-tonoise ratio (SNR), contrast-to-noise ratio (CNR) and non-uniformity (NU). Two independent radiologists (CS and FN), each provided Likert scoring assessments of anatomical visibility of the GM and WM structures and image clarity for all samples. Results: Quantitative evaluation showed that 3D MEDIC provided higher SNR, higher CNR and lower NU than 2D MEDIC. However, 2D MEDIC provided better anatomical visibility for the GM, WM and CSF, and higher image clarity (lower artefacts) compared to 3D MEDIC. Conclusions: 2D MEDIC provides better information for depicting the internal structures of the cervical spinal cord compared to 3D MEDIC.

show abstract

Post-contrast T1-weighted spine 3T MRI in children using a golden-angle radial acquisition

Benkert

Smith

et al. 2019

Neuroradiology

View full text Add to dashboard Cite

MRI of the cervical spine with 3D gradient echo sequence at 3 T: initial experience

Cited by 10 publications

References 27 publications

Accelerated MRI of the Lumbar Spine Using Compressed Sensing: Quality and Efficiency

Accelerated MRI of the Lumbar Spine Using Compressed Sensing: Quality and Efficiency

Comparison between 2D and 3D MEDIC for human cervical spinal cord MRI at 3T

Post-contrast T1-weighted spine 3T MRI in children using a golden-angle radial acquisition

Contact Info

Product

Resources

About