Comparison of zero echo time MRI with T1-weighted fast spin echo for the recognition of sacroiliac joint structural lesions using CT as the reference standard

Li, Yitong; Xiong, Yan; Hou, Bowen; Liu, Chanyuan; Wang, Jingyi; Liu, Weiyin Vivian; Li, Xiaoming

doi:10.1007/s00330-021-08513-5

Cited by 20 publications

(11 citation statements)

References 36 publications

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“…High intermodality and interrater agreement between ZTE MRI and CT were also found when evaluating cervical neuroforaminal stenosis 80 (Fig. 16), lumbar degenerative changes, 81 and sacroiliac joint structural lesions 82 . In addition, ZTE MRI can be used to evaluate ossification of the posterior longitudinal ligament of the spine 83,84 (Fig.…”

Section: Zero Echo Time Mrimentioning

confidence: 88%

Synthetic CT in Musculoskeletal Disorders

Lombardi

Jang

et al. 2022

Invest Radiol

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Repeated computed tomography (CT) examinations increase patients' ionizing radiation exposure and health costs, making an alternative method desirable. Cortical and trabecular bone, however, have short T2 relaxation times, causing low signal intensity on conventional magnetic resonance (MR) sequences. Different techniques are available to create a “CT-like” contrast of bone, such as ultrashort echo time, zero echo time, gradient-echo, and susceptibility-weighted image MR sequences, and artificial intelligence. This systematic review summarizes the essential technical background and developments of ultrashort echo time, zero echo time, gradient-echo, susceptibility-weighted image MR imaging sequences and artificial intelligence; presents studies on research and clinical applications of “CT-like” MR imaging; and describes their main advantages and limitations. We also discuss future opportunities in research, which patients would benefit the most, the most appropriate situations for using the technique, and the potential to replace CT in the clinical workflow.

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Section: Zero Echo Time Mrimentioning

confidence: 88%

Synthetic CT in Musculoskeletal Disorders

Lombardi

Jang

et al. 2022

Invest Radiol

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“…Recently, new MRI sequences have become available that may allow for accurate cortical and trabecular bone assessment. ZTE (zero echo time) [5][6][7] and UTE (ultrashort echo time) [8][9][10][11] MRI sequences belong to a group of novel 3D MRI pulse sequences that use an echo time (TE) of 1 ms or less enabling the acquisition of sufficient signal from rapidly decaying short-T2 tissue components which are abundant in calcified cartilage such as at the transition of articular cartilage to the subchondral bone, tendons, and menisci (Fig. 1) [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, in these short echo time sequences, signal can be provided from short T2 tissues to provide a contrast mechanism that affords visualization of the cortical bone of the SI joint [5,6,12]. Importantly, ZTE and UTE feature comparable contrast-to-noise and signal-to-noise ratios (CNR/SNR) [15].…”

Section: Introductionmentioning

confidence: 99%

Detailed bone assessment of the sacroiliac joint in a prospective imaging study: comparison between computed tomography, zero echo time, and black bone magnetic resonance imaging

et al. 2022

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Objectives To compare the value of zero echo time (ZTE) and gradient echo “black bone” (BB) MRI sequences for bone assessment of the sacroiliac joint (SI) using computed tomography (CT) as the reference standard. Materials and methods Between May 2019 and January 2021, 79 patients prospectively underwent clinically indicated 3-T MRI including ZTE and BB imaging. Additionally, all patients underwent a CT scan covering the SI joints within 12 months of the MRI examination. Two blinded readers performed bone assessment by grading each side of each SI joint qualitatively in terms of seven features (osteophytes, subchondral sclerosis, erosions, ankylosis, joint irregularity, joint widening, and gas in the SI joint) using a 4-point Likert scale (0 = no changes–3 = marked changes). Scores were compared between all three imaging modalities. Results Interreader agreement was largely good (k values: 0.5–0.83). Except for the feature “gas in SI joint” where ZTE exhibited significantly lower scores than CT (p < 0.001), ZTE and BB showed similar performance relative to CT for all other features (p > 0.52) with inter-modality agreement being substantial to almost perfect (Krippendorff’s alpha coefficients: 0.724–0.983). When combining the data from all features except for gas in the SI joint and when binarizing grading scores, combined sensitivity/specificity was 76.7%/98.6% for ZTE and 80.8%/99.1% for BB, respectively, compared to CT. Conclusions The performance of ZTE and BB sequences was comparable to CT for bone assessment of the SI joint. These sequences may potentially serve as an alternative to CT yet without involving exposure to ionizing radiation.

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“…reported that UTE could provide images that resemble CT with excellent performance in pulmonary nodule detection and evaluation of nodule types ( 11 ). Compared with UTE, ZTE shows higher sensitivity to short T2 and greater robustness against eddy currents without required trajectory calibration as well as a shorter scan time and lack of operational noise ( 14 ). However, the performance of lung ZTE-MRI in the assessment of pulmonary nodules or masses in comparison with conventional CT in routine practice is still not fully illustrated.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Solid Pulmonary Nodules or Masses Using Zero Echo Time MR Lung Imaging: A Prospective Head-to-Head Comparison With CT

Liu

Feng

Liu³

et al. 2022

Front. Oncol.

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ObjectiveThe aim of this study is to determine the potential of zero echo time (ZTE) MR lung imaging in the assessment of solid pulmonary nodules or masses and diagnostic consistency to CT in terms of morphologic characterization.MethodsOur Institutional Review Board approved this prospective study. Seventy-one patients with solid pulmonary nodules or masses larger than 1 cm in diameter confirmed by chest CT were enrolled and underwent further lung ZTE-MRI scans within 7 days. ZTE-MRI and CT images were compared in terms of image quality and imaging features. Unidimensional diameter and three-dimensional volume measurements on both modalities were manually measured and compared using the Wilcoxon signed-rank test, intraclass correlation coefficient (ICC), Pearson’s correlation analysis, and Bland–Altman analysis. Multivariable logistic regression analysis was used to identify the factors associated with significant inter-modality variation of volume.ResultsFifty-four of 71 (76.1%) patients were diagnosed with lung cancer. Subjective image quality was superior in CT compared with ZTE-MRI (p < 0.001). Inter-modality agreement for the imaging features was moderate for emphysema (kappa = 0.50), substantial for fibrosis (kappa = 0.76), and almost perfect (kappa = 0.88-1.00) for the remaining features. The size measurements including diameter and volume between ZTE-MRI and CT showed no significant difference (p = 0.36 for diameter and 0.60 for volume) and revealed perfect inter-observer (ICC = 0.975–0.980) and inter-modality (ICC = 0.942–0.992) agreements. Multivariable analysis showed that non-smooth margin [odds ratio (OR) = 6.008, p = 0.015] was an independent predictor for the significant inter-modality variation of volume.ConclusionZTE lung imaging is feasible as a part of chest MRI in the assessment and surveillance for solid pulmonary nodules or masses larger than 1 cm, presenting perfect agreement with CT in terms of morphologic characterization.

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Comparison of zero echo time MRI with T1-weighted fast spin echo for the recognition of sacroiliac joint structural lesions using CT as the reference standard

Cited by 20 publications

References 36 publications

Synthetic CT in Musculoskeletal Disorders

Synthetic CT in Musculoskeletal Disorders

Detailed bone assessment of the sacroiliac joint in a prospective imaging study: comparison between computed tomography, zero echo time, and black bone magnetic resonance imaging

Assessment of Solid Pulmonary Nodules or Masses Using Zero Echo Time MR Lung Imaging: A Prospective Head-to-Head Comparison With CT

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