Free-Breathing Radial 3D Fat-Suppressed T1-Weighted Gradient-Echo Sequence for Contrast-Enhanced Pediatric Spinal Imaging: Comparison With T1-Weighted Turbo Spin-Echo Sequence

Cho, Hyun Hae; Choi, Young Hun; Cheon, Jung Eun; Lee, So Mi; Kim, Woo Sun; Kim, In One; Paek, Mun Young

doi:10.2214/ajr.15.15617

Cited by 19 publications

(30 citation statements)

References 22 publications

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“…Axial 3D volume-interpolated gradient recalled echo sequences (ie, volume interpolated breathhold examination [VIBE]/ liver acquisition with volume acceleration [LAVA]/T1 high resolution isotropic volume excitation [THRIVE]) provide excellent resolution with minimal CSF pulsation artifacts. 22 For 2D SE techniques, the image order acquisition should be consecutive, not interleaved (as explained above in the "Brain Imaging" section); interleaved acquisitions are sometimes degraded by prominent CSF pulsation artifacts and therefore their routine use is not recommended. Maximum image thickness should be 4 mm (5 mm for larger patients).…”

Section: Spine Imagingmentioning

confidence: 99%

Response assessment in medulloblastoma and leptomeningeal seeding tumors: recommendations from the Response Assessment in Pediatric Neuro-Oncology committee

et al. 2017

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Lack of standard response criteria in clinical trials for medulloblastoma and other seeding tumors complicates assessment of therapeutic efficacy and comparisons across studies. An international working group was established to develop consensus recommendations for response assessment. The aim is that these recommendations be prospectively evaluated in clinical trials, with the goal of achieving more reliable risk stratification and uniformity across clinical trials. Current practices and literature review were performed to identify major confounding issues and justify subsequently developed recommendations; in areas lacking scientific investigations, recommendations were based on experience of committee members and consensus was reached after discussion. Recommendations apply to both adult and pediatric patients with medulloblastoma and other seeding tumors. Response should be assessed using MR imaging (brain and spine), CSF cytology, and neurologic examination. Clinical imaging standards with minimum mandatory sequence acquisition that optimizes detection of leptomeningeal metastases are defined. We recommend central review prior to inclusion in treatment cohorts to ensure appropriate risk stratification and cohort inclusion. Consensus recommendations and response definitions for patients with medulloblastomas and other seeding tumors have been established; as with other Response Assessment in Neuro-Oncology recommendations, these need to now be prospectively validated in clinical trials.

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Section: Spine Imagingmentioning

confidence: 99%

Response assessment in medulloblastoma and leptomeningeal seeding tumors: recommendations from the Response Assessment in Pediatric Neuro-Oncology committee

et al. 2017

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“…However, optimal abdominal MRI remains challenging in children, because sedated children in the free-breathing state during the MR exam have shallow, rapid, and sometimes irregular respiratory cycles, whereas non-sedated children are frequently unable to breath-hold for the required length of time. The stack-of-stars acquisition technique is a free-breathing method that can provide distortion-free images by in-plane radial and through-plane cartesian acquisition, both in 3D gradient echo body imaging and spine, head, and neck imaging (15,18). Comparisons of abdominal contrast-enhanced 3D GRE T1W imaging with free-breathing radial acquisition and breath-hold conventional Cartesian acquisition techniques showed that the former provided better quality images and was better able to identify lesions in pediatric patients (8,9) and in adults who have difficulty holding their breath (19).…”

Section: Discussionmentioning

confidence: 99%

“…The mean and SD of signal intensity within each ROI were measured, and the coefficient of variation was calculated by dividing the SD by the mean. The image quality of the three sequences was compared quantitatively by comparing the mean coefficients of variation calculated by the two reviewers (15).…”

Section: Methodsmentioning

confidence: 99%

Free-breathing contrast-enhanced upper abdominal MRI in children: comparison between Cartesian acquisition and stack-of-stars acquisition with two different fat-suppression techniques

et al. 2020

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Background Respiratory artifacts impair image quality of magnetic resonance imaging (MRI) in children who cannot hold breath during MRI examination. Purpose To compare the quality of free-breathing contrast-enhanced 3D T1-weighted (T1W) images of the upper abdomen in children using Cartesian acquisition (Cartesian eTHRIVE), stack-of-stars acquisition with spectral fat suppression (3D VANE eTHRIVE), and stack-of-stars acquisition with fat suppression using modified Dixon (3D VANE mDixon). Material and Methods Pediatric patients (aged <19 years) who underwent whole-body MRI with free-breathing contrast-enhanced T1W axial scans of upper abdomen using Cartesian eTHRIVE, 3D VANE eTHRIVE, and 3D VANE mDixon were enrolled. Image quality parameters were assessed including overall image quality, hepatic edge sharpness, hepatic vessel clarity, respiratory artifacts, radial artifacts, lesion conspicuity, and lesion edge sharpness using the Likert scale, where a lower score indicated poorer image quality. The coefficients of variation of signal intensity of liver and spleen were analyzed. Results In 41 patients, 3D VANE eTHRIVE showed the highest scores for all image quality parameters ( P ≤ 0.001). 3D VANE eTHRIVE also showed higher scores for respiratory ( P ≤ 0.001) and radial artefacts than 3D VANE mDixon ( P = 0.001). There were no significant differences in coefficients of variation of signal intensity of the liver and spleen between 3D VANE eTHRIVE and 3D VANE mDixon. Acquisition time was longer for 3D VANE eTHRIVE (81.26 ± 16 s) than for Cartesian eTHRIVE (7.87 ± 0.95 s) and 3D VANE mDixon (76.66 ± 12.4 s, P < 0.001). Conclusion The application of stack-of-stars acquisition to 3D T1W abdominal MRI resulted in better image quality than Cartesian acquisition in free-breathing children. In stack-of-stars acquisition, spectral fat suppression resulted in better image quality and fewer artifacts than mDixon.

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“…T1-weighted 3D techniques for the spine have shown comparable or superior image quality to 2D techniques. 34,35 The multiplanar reformatting capability of 3D scans can significantly speed total acquisition time of a contrast-enhanced study where one or more T1-weighted sequences are separately acquired with 2D techniques.…”

Section: T1-weighted Fast Spin Echomentioning

confidence: 99%

3D MRI of the Spine

Sahr

Tan

Sneag

2021

Semin Musculoskelet Radiol

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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.

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Free-Breathing Radial 3D Fat-Suppressed T1-Weighted Gradient-Echo Sequence for Contrast-Enhanced Pediatric Spinal Imaging: Comparison With T1-Weighted Turbo Spin-Echo Sequence

Abstract: For pediatric spinal imaging, radial VIBE images had better image quality and lesion conspicuity and fewer CSF and respiratory motion artifacts than did T1-weighted TSE images in a similar acquisition time.

Cited by 19 publications

References 22 publications

Response assessment in medulloblastoma and leptomeningeal seeding tumors: recommendations from the Response Assessment in Pediatric Neuro-Oncology committee

Response assessment in medulloblastoma and leptomeningeal seeding tumors: recommendations from the Response Assessment in Pediatric Neuro-Oncology committee

Free-breathing contrast-enhanced upper abdominal MRI in children: comparison between Cartesian acquisition and stack-of-stars acquisition with two different fat-suppression techniques

3D MRI of the Spine

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