Introduction of a Dedicated Emergency Department MR Imaging Scanner at the Barrow Neurological Institute

Buller, M.; Karis, John P.

doi:10.3174/ajnr.a5210

Cited by 15 publications

(8 citation statements)

References 34 publications

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“…MRI continues to be a limited resource, with very few scanners sited in the ED. 23,24 There are well defined neurological emergency diagnoses that are best triaged with MR, such as neurologic deficits in the spine (cord compression, cauda equina syndrome, epidural abscess, and epidural hematoma). 25,26 Other diagnoses in the ED setting, such as Transient Ischemic Attack vs small infarct, posterior fossa infarcts, multiple sclerosis exacerbation, encephalitis, and hypoxic brain injury may be inferred from the CT but are more easily made with MR.…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Operational Considerations in Emergency Radiology

Robinson

Gross

Cohen

et al. 2020

Seminars in Roentgenology

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Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre-including this research content-immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Operational Considerations in Emergency Radiology

Robinson

Gross

Cohen

et al. 2020

Seminars in Roentgenology

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“…For many neurologic indications, MRI is the preferred imaging examination because of its superior tissue resolution and because it avoids ionizing radiation [ 1 ]. One key disadvantage of MRI, particularly when compared to CT, is the considerably longer examination duration.…”

Section: Introductionmentioning

confidence: 99%

Turnaround time and efficiency of pediatric outpatient brain magnetic resonance imaging: a multi-institutional cross-sectional study

et al. 2022

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Background Aside from single-center reports, few data exist across pediatric institutions that examine overall MRI turnaround time (TAT) and the determinants of variability. Objective To determine average duration and determinants of a brain MRI examination at academic pediatric institutions and compare the duration to those used in practice expense relative value units (RVUs). Materials and methods This multi-institutional cross-sectional investigation comprised four academic pediatric hospitals. We included children ages 0 to < 18 years who underwent an outpatient MRI of the brain without contrast agent in 2019. Our outcome of interest was the overall MRI TAT derived by time stamps. We estimated determinants of overall TAT using an adjusted log-transformed multivariable linear regression model with robust standard errors. Results The average overall TAT significantly varied among the four hospitals. A sedated brain MRI ranged from 158 min to 224 min, a non-sedated MRI from 70 min to 112 min, and a limited MRI from 44 min to 70 min. The most significant predictor of a longer overall TAT was having a sedated MRI (coefficient = 0.71, 95% confidence interval [CI]: 0.66–0.75; P < 0.001). The median MRI scan time for a non-sedated exam was 38 min and for a sedated exam, 37 min, approximately double the duration used by the Relative Value Scale (RVS) Update Committee (RUC). Conclusion We found considerable differences in the overall TAT across four pediatric academic institutions. Overall, the significant predictors of turnaround times were hospital site and MRI pathway (non-sedated versus sedated versus limited MRI).

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“…Achieving rapid, accurate, and robust multi‐contrast MRI of the brain remains a challenging physics and image reconstruction problem. Scan times for high diagnostic quality MR images are prohibitively long for time‐sensitive inpatient and emergency department scenarios, where use of MRI has been rapidly increasing 1–7 . This can lead to delayed treatment for patients in need of urgent medical intervention 8,9 …”

Section: Introductionmentioning

confidence: 99%

“…Scan times for high diagnostic quality MR images are prohibitively long for time-sensitive inpatient and emergency department scenarios, where use of MRI has been rapidly increasing. [1][2][3][4][5][6][7] This can lead to delayed treatment for patients in need of urgent medical intervention. 8,9 There have been recent advances in efficient encoding for 3D volumetric imaging.…”

Section: Introductionmentioning

confidence: 99%

An artificial intelligence‐accelerated 2‐minute multi‐shot echo planar imaging protocol for comprehensive high‐quality clinical brain imaging

Clifford

Conklin

Huang

et al. 2021

Magnetic Resonance in Med

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We introduce and validate an artificial intelligence (AI)-accelerated multi-shot echo-planar imaging (msEPI)-based method that provides T1w, T2w, T * 2 , T2-FLAIR, and DWI images with high SNR, high tissue contrast, low specific absorption rates (SAR), and minimal distortion in 2 minutes. Methods:The rapid imaging technique combines a novel machine learning (ML) scheme to limit g-factor noise amplification and improve SNR, a magnetization transfer preparation module to provide clinically desirable contrast, and high per-shot EPI undersampling factors to reduce distortion. The ML training and image reconstruction incorporates a tunable parameter for controlling the level of denoising/smoothness. The performance of the reconstruction method is evaluated across various acceleration factors, contrasts, and SNR conditions. The 2-minute protocol is directly compared to a 10-minute clinical reference protocol through deployment in a clinical setting, where five representative cases with pathology are examined. Results: Optimization of custom msEPI sequences and protocols was performed to balance acquisition efficiency and image quality compared to the five-fold longer clinical reference. Training data from 16 healthy subjects across multiple contrasts and orientations were used to produce ML networks at various

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Introduction of a Dedicated Emergency Department MR Imaging Scanner at the Barrow Neurological Institute

Cited by 15 publications

References 34 publications

Operational Considerations in Emergency Radiology

Operational Considerations in Emergency Radiology

Turnaround time and efficiency of pediatric outpatient brain magnetic resonance imaging: a multi-institutional cross-sectional study

An artificial intelligence‐accelerated 2‐minute multi‐shot echo planar imaging protocol for comprehensive high‐quality clinical brain imaging

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