Evaluating the Performance of Augmented Reality in Displaying Magnetic Resonance Imaging-Derived Three-Dimensional Holographic Models.
AR/VR MRI
MRI 3D precision
MRI augmented reality
augmented reality
Journal
Journal of medical imaging and radiation sciences
ISSN: 1876-7982
Titre abrégé: J Med Imaging Radiat Sci
Pays: United States
ID NLM: 101469694
Informations de publication
Date de publication:
03 2020
03 2020
Historique:
received:
10
04
2019
revised:
29
08
2019
accepted:
23
10
2019
pubmed:
22
12
2019
medline:
11
5
2021
entrez:
22
12
2019
Statut:
ppublish
Résumé
Establishing accuracy and precision of magnetic resonance (MR)-derived augmented reality (AR) models is critical before clinical utilization, particularly in preoperative planning. We investigate the performance of an AR application in representing and displaying MR-derived three-dimensional holographic models. Thirty gold standard (GS) measurements were obtained on a magnetic resonance imaging (MRI) phantom (six interfiducial distances and five configurations). Four MRI pulse sequences were obtained for each of the five configurations, and distances measured in Picture Archiving and Communication System (PACS). Digital imaging and communications in medicine files were translated into three-dimensional models and then loaded onto a novel AR platform. Measurements were also obtained with the software's AR caliper tool. Significant differences among the three groups (GS, PACS, and AR) were assessed with the Kruskal-Wallis test and nonsample median test. Accuracy analysis of GS vs. AR was performed. Precision (percent deviation) of the AR-based caliper tool was also assessed. No statistically significant difference existed between AR and GS measurements (P = .6208). PACS demonstrated mean squared error (MSE) of 0.29%. AR digital caliper demonstrated an MSE of 0.3%. Three-dimensional T2 CUBE AR measurements using the platform's AR caliper tool demonstrated an MSE of 8.6%. Percent deviation of AR software caliper tool ranged between 1.9% and 3.9%. AR demonstrated a high degree of accuracy in comparison to GS, comparable to PACS-based measurements. AR caliper tool demonstrated overall lower accuracy than with physical calipers, although with MSE <10% and greatest measured difference from GS measuring <5 mm. AR-based caliper demonstrated a high degree of precision. There was no statistically significant difference between GS measurements and three-dimensional AR measurements in MRI phantom models.
Sections du résumé
INTRODUCTION/BACKGROUND
Establishing accuracy and precision of magnetic resonance (MR)-derived augmented reality (AR) models is critical before clinical utilization, particularly in preoperative planning. We investigate the performance of an AR application in representing and displaying MR-derived three-dimensional holographic models.
METHODS
Thirty gold standard (GS) measurements were obtained on a magnetic resonance imaging (MRI) phantom (six interfiducial distances and five configurations). Four MRI pulse sequences were obtained for each of the five configurations, and distances measured in Picture Archiving and Communication System (PACS). Digital imaging and communications in medicine files were translated into three-dimensional models and then loaded onto a novel AR platform. Measurements were also obtained with the software's AR caliper tool. Significant differences among the three groups (GS, PACS, and AR) were assessed with the Kruskal-Wallis test and nonsample median test. Accuracy analysis of GS vs. AR was performed. Precision (percent deviation) of the AR-based caliper tool was also assessed.
RESULTS
No statistically significant difference existed between AR and GS measurements (P = .6208). PACS demonstrated mean squared error (MSE) of 0.29%. AR digital caliper demonstrated an MSE of 0.3%. Three-dimensional T2 CUBE AR measurements using the platform's AR caliper tool demonstrated an MSE of 8.6%. Percent deviation of AR software caliper tool ranged between 1.9% and 3.9%.
DISCUSSION
AR demonstrated a high degree of accuracy in comparison to GS, comparable to PACS-based measurements. AR caliper tool demonstrated overall lower accuracy than with physical calipers, although with MSE <10% and greatest measured difference from GS measuring <5 mm. AR-based caliper demonstrated a high degree of precision.
CONCLUSION
There was no statistically significant difference between GS measurements and three-dimensional AR measurements in MRI phantom models.
Identifiants
pubmed: 31862176
pii: S1939-8654(19)30549-1
doi: 10.1016/j.jmir.2019.10.006
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
95-102Subventions
Organisme : NCATS NIH HHS
ID : UL1 TR001872
Pays : United States
Informations de copyright
Copyright © 2019. Published by Elsevier Inc.