Comparison between high-resolution isotropic three-dimensional and high-resolution conventional two-dimensional FSE MR images of the wrist at 3 tesla: A pilot study

Yamabe, Eiko; Anavim, Arash; Sakai, Toshinori; Miyagi, Ryo; Nakamura, Toshiyasu; Hitt, Dave; Yoshioka, Hiroshi

doi:10.1002/jmri.24428

Cited by 19 publications

(17 citation statements)

References 25 publications

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“…High‐resolution three‐dimensional (3D) structural MR imaging can accurately delineate complex or small structures of the body . However, it requires long acquisition times, thereby limiting its clinical use .…”

Section: Introductionmentioning

confidence: 99%

Compressed Sensing 3D‐GRASE for faster High‐Resolution MRI

Cristobal-Huerta

Poot

Vogel³

et al. 2019

Magnetic Resonance in Med

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Purpose High‐resolution three‐dimensional (3D) structural MRI is useful for delineating complex or small structures of the body. However, it requires long acquisition times and high SAR, limiting its clinical use. The purpose of this work is to accelerate the acquisition of high‐resolution images by combining compressed sensing and parallel imaging (CSPI) on a 3D‐GRASE sequence and to compare it with a (CS)PI 3D‐FSE sequence. Several sampling patterns were investigated to assess their influence on image quality. Methods The proposed k‐space sampling patterns are based on two undersampled k‐space grids, variable density (VD) Poisson‐disc, and VD pseudo‐random Gaussian, and five different trajectories described in the literature. Bloch simulations are performed to obtain the transform point spread function and evaluate the coherence of each sampling pattern. Image resolution was assessed by the full‐width at half‐maximum (FWHM). Prospective CSPI 3D‐GRASE phantom and in vivo experiments in knee and brain are carried out to assess image quality, SNR, SAR, and acquisition time compared to PI 3D‐GRASE, PI 3D‐FSE, and CSPI 3D‐FSE acquisitions. Results Sampling patterns with VD Poisson‐disc obtain the lowest coherence for both PD‐weighted and T2‐weighted acquisitions. VD pseudo‐random Gaussian obtains lower FWHM, but higher sidelobes than VD Poisson‐disc. CSPI 3D‐GRASE reduces acquisition time (43% for PD‐weighted and 40% for T2‐weighted) and SAR (∼45% for PD‐weighted and T2‐weighted) compared to CSPI 3D‐FSE. Conclusions CSPI 3D‐GRASE reduces acquisition time compared to a CSPI 3DFSE acquisition, preserving image quality. The design of the sampling pattern is crucial for image quality in CSPI 3D‐GRASE image acquisitions.

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Section: Introductionmentioning

confidence: 99%

Compressed Sensing 3D‐GRASE for faster High‐Resolution MRI

Cristobal-Huerta

Poot

Vogel³

et al. 2019

Magnetic Resonance in Med

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“…Although several studies have compared the diagnostic performances of 3D isotropic sequences and 2D sequences in the wrist joints, most of these used a gradient-recalled echo sequence 8,23 or FSE images with intermediate-weighted sequences. 8,21,22 We used 3D isotropic T 1 weighted FSE sequences in this study, and to our knowledge, it was the first such study on the wrist joint. This sequence uses flip angle sweep, short and non-volume selective refocusing pulse, and parallel imaging, which makes it possible to get shorter echo spacing and a better signal-tonoise ratio.…”

Section: Patient Data and Results Are Summarized Inmentioning

confidence: 99%

“…10,[18][19][20] However, the number of studies that have used 3D isotropic FSE techniques in the wrist joint is limited. 8,21,22 Additionally, although the D-MRA 3D isotropic FSE sequence provides high contrast and spatial resolution, only one study to date has reported the diagnostic performance of 3D isotropic FSE D-MRA for the wrist joint. 21 However, they used 3D isotropic proton-density FSE MRI instead of T 1 weighted FSE MRI and did not use the arthroscopic findings Full paper: Diagnostic performance of wrist magnetic resonance (MR) arthrography BJR as the gold standard.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic performance of wrist magnetic resonance (MR) arthrography: comparison of three-dimensional isotropic T 1 weighted fast spin-echo MR arthrography and two-dimensional MR arthrography

Yoon

Park

2017

The British Journal of Radiology

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Objective: To compare the diagnostic performance of direct wrist MR arthrography (D-MRA) with twodimensional (2D) T 1 weighted fast spin-echo (FSE) and three-dimensional (3D) isotropic T 1 weighted FSE sequences for detecting triangular fibrocartilage (TFC) central perforations and scapholunate ligament (SLL) and lunotriquetral ligament (LTL) tears. Methods: 26 patients who had undergone pre-operative wrist D-MRA with 2D and 3D isotropic T 1 weighted FSE sequences and subsequent arthroscopic surgeries were included. Each MRI sequence was independently evaluated and scored by two readers retrospectively for the presence of TFC central perforations and SLL and LTL tears. Arthroscopic findings were used as the reference standard. Diagnostic performance was evaluated by using the area under the receiver operating characteristic curve. The sensitivity, specificity and accuracy of both sequences for diagnosing the injuries were calculated. Results: Arthroscopic surgery revealed 21 TFC central perforations, 7 SLL tears and 3 LTL tears. The area under the receiver operating characteristic curve value of 2D and 3D for central perforations in TFC and tears in SLL and LTL was identical or similar (0.667-0.947). The sensitivity, specificity and accuracy of both sequences for diagnosing the injury of each structure were not significantly different (TFC, 90.5/80/88.5% for both readers/sequences; SLL, 100/89.5/92.3% for both readers' 2D and Reader A's 3D, and 85.7/89.5/ 88.5% for Reader B's 3D; LTL, 66.7/100/96.2% for both readers' 2D and 33.3/100/92.3% for both readers' 3D). Interobserver agreements were substantial to excellent. Conclusion: In wrist D-MRA, the diagnostic performances of 3D isotropic and 2D T 1 weighted FSE sequences are comparable for TFC central perforations and SLL and LTL tears. Advances in knowledge: The diagnostic performance of 3D isotropic T 1 weighted FSE D-MRA and that of 2D T 1 weighted FSE D-MRA were not significantly different in the diagnosis of central perforations in the TFC and tears in the SLL and LTL. 3D isotropic T 1 weighted FSE D-MRA has potential for substituting 2D imaging.

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“…1 Increased slice thickness results in decreased scan time at the cost of increased image blur. Overall, decreasing ETL improves image blur.…”

Section: Techniquementioning

confidence: 99%

MR Imaging of the Triangular Fibrocartilage Complex

Cody

Nakamura

Small

et al. 2015

Magnetic Resonance Imaging Clinics of North America

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Comparison between high-resolution isotropic three-dimensional and high-resolution conventional two-dimensional FSE MR images of the wrist at 3 tesla: A pilot study

Abstract: With regard to clinical applications, 3D MRI of the wrist has almost equal potential to 2D MRI.

Cited by 19 publications

References 25 publications

Compressed Sensing 3D‐GRASE for faster High‐Resolution MRI

Compressed Sensing 3D‐GRASE for faster High‐Resolution MRI

Diagnostic performance of wrist magnetic resonance (MR) arthrography: comparison of three-dimensional isotropic T 1 weighted fast spin-echo MR arthrography and two-dimensional MR arthrography

MR Imaging of the Triangular Fibrocartilage Complex

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