Cargando…
Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI
PURPOSE: To investigate the ability of free induction decay navigator (FIDnav)‐based motion monitoring to predict diagnostic utility and reduce the time and cost associated with acquiring diagnostically useful images in a pediatric patient cohort. METHODS: A study was carried out in 102 pediatric pa...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7904595/ https://www.ncbi.nlm.nih.gov/pubmed/33404086 http://dx.doi.org/10.1002/mrm.28649 |
_version_ | 1783654959712043008 |
---|---|
author | Wallace, Tess E. Afacan, Onur Jaimes, Camilo Rispoli, Joanne Pelkola, Kristina Dugan, Monet Kober, Tobias Warfield, Simon K. |
author_facet | Wallace, Tess E. Afacan, Onur Jaimes, Camilo Rispoli, Joanne Pelkola, Kristina Dugan, Monet Kober, Tobias Warfield, Simon K. |
author_sort | Wallace, Tess E. |
collection | PubMed |
description | PURPOSE: To investigate the ability of free induction decay navigator (FIDnav)‐based motion monitoring to predict diagnostic utility and reduce the time and cost associated with acquiring diagnostically useful images in a pediatric patient cohort. METHODS: A study was carried out in 102 pediatric patients (aged 0‐18 years) at 3T using a 32‐channel head coil array. Subjects were scanned with an FID‐navigated MPRAGE sequence and images were graded by two radiologists using a five‐point scale to evaluate the impact of motion artifacts on diagnostic image quality. The correlation between image quality and four integrated FIDnav motion metrics was investigated, as well as the sensitivity and specificity of each FIDnav‐based metric to detect different levels of motion corruption in the images. Potential time and cost savings were also assessed by retrospectively applying an optimal detection threshold to FIDnav motion scores. RESULTS: A total of 12% of images were rated as non‐diagnostic, while a further 12% had compromised diagnostic value due to motion artifacts. FID‐navigated metrics exhibited a moderately strong correlation with image grade (Spearman's rho ≥ 0.56). Integrating the cross‐correlation between FIDnav signal vectors achieved the highest sensitivity and specificity for detecting non‐diagnostic images, yielding total time savings of 7% across all scans. This corresponded to a financial benefit of $2080 in this study. CONCLUSIONS: Our results indicate that integrated motion metrics from FIDnavs embedded in structural MRI are a useful predictor of diagnostic image quality, which translates to substantial time and cost savings when applied to pediatric MRI examinations. |
format | Online Article Text |
id | pubmed-7904595 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-79045952021-03-25 Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI Wallace, Tess E. Afacan, Onur Jaimes, Camilo Rispoli, Joanne Pelkola, Kristina Dugan, Monet Kober, Tobias Warfield, Simon K. Magn Reson Med Full Papers—Imaging Methodology PURPOSE: To investigate the ability of free induction decay navigator (FIDnav)‐based motion monitoring to predict diagnostic utility and reduce the time and cost associated with acquiring diagnostically useful images in a pediatric patient cohort. METHODS: A study was carried out in 102 pediatric patients (aged 0‐18 years) at 3T using a 32‐channel head coil array. Subjects were scanned with an FID‐navigated MPRAGE sequence and images were graded by two radiologists using a five‐point scale to evaluate the impact of motion artifacts on diagnostic image quality. The correlation between image quality and four integrated FIDnav motion metrics was investigated, as well as the sensitivity and specificity of each FIDnav‐based metric to detect different levels of motion corruption in the images. Potential time and cost savings were also assessed by retrospectively applying an optimal detection threshold to FIDnav motion scores. RESULTS: A total of 12% of images were rated as non‐diagnostic, while a further 12% had compromised diagnostic value due to motion artifacts. FID‐navigated metrics exhibited a moderately strong correlation with image grade (Spearman's rho ≥ 0.56). Integrating the cross‐correlation between FIDnav signal vectors achieved the highest sensitivity and specificity for detecting non‐diagnostic images, yielding total time savings of 7% across all scans. This corresponded to a financial benefit of $2080 in this study. CONCLUSIONS: Our results indicate that integrated motion metrics from FIDnavs embedded in structural MRI are a useful predictor of diagnostic image quality, which translates to substantial time and cost savings when applied to pediatric MRI examinations. John Wiley and Sons Inc. 2021-01-06 2021-06 /pmc/articles/PMC7904595/ /pubmed/33404086 http://dx.doi.org/10.1002/mrm.28649 Text en © 2021 The Authors. Magnetic Resonance in Medicine published by Wiley Periodicals LLC on behalf of International Society for Magnetic Resonance in Medicine This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers—Imaging Methodology Wallace, Tess E. Afacan, Onur Jaimes, Camilo Rispoli, Joanne Pelkola, Kristina Dugan, Monet Kober, Tobias Warfield, Simon K. Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI |
title | Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI |
title_full | Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI |
title_fullStr | Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI |
title_full_unstemmed | Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI |
title_short | Free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric MRI |
title_sort | free induction decay navigator motion metrics for prediction of diagnostic image quality in pediatric mri |
topic | Full Papers—Imaging Methodology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7904595/ https://www.ncbi.nlm.nih.gov/pubmed/33404086 http://dx.doi.org/10.1002/mrm.28649 |
work_keys_str_mv | AT wallacetesse freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT afacanonur freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT jaimescamilo freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT rispolijoanne freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT pelkolakristina freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT duganmonet freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT kobertobias freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri AT warfieldsimonk freeinductiondecaynavigatormotionmetricsforpredictionofdiagnosticimagequalityinpediatricmri |