Cardiovascular and interventional radiology · 2026
Feasibility of an Augmented Reality Artificial Intelligence Tool for Real-Time Assessment of Thyroid Fine-Needle Aspiration Adequacy.
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Gibbs Paul M, Nguyen Dat Xuan, Vargas Gladys M, Gibbs Michelle J, Sudheesh Pranav, Fitzpatrick Emma K, Tapia Owen R, Zhong Josh, Steele Julie B
Аннотация
PURPOSE: To evaluate the feasibility of developing an artificial intelligence application for real-time specimen adequacy assessment during ultrasound-guided fine needle aspiration of the thyroid gland using small, locally derived datasets and open-source AI tools.
MATERIALS AND METHODS: 1,244 photomicrographic images of thyroid needle aspiration slides were used to develop training and testing datasets for a YOLOv5 convolutional neural network model. In silico performance was tested for standard metrics. The model was deployed in an application featuring a live, augmented reality microscopy display. Hands-on testing was performed using a set of 50 blinded patient specimens tested in duplicate (N=100) by human observers with no prior formal training in pathology.
RESULTS: On an independent static image test set, the CNN achieved an AUROC of 0.954 (95% CI, 0.922-0.986) using images acquired with a dedicated microscope camera, with sensitivity 0.969, specificity 0.933, and accuracy 95.5%. Using images acquired with a smartphone camera, performance improved to an AUROC of 0.983 (95% CI, 0.965-1.000), with sensitivity 0.980, specificity 1.000, and accuracy 98.8%. In a simulated clinical workflow, human users assisted by the augmented reality AI tool demonstrated 96% concordance with the reference standard FNA adequacy assessment.
CONCLUSION: An augmented reality microscopy tool based on a small-model CNN showed feasibility for performing real-time assessment of thyroid FNA specimen adequacy. Such a tool can enable telecytologic support of FNA assessment in radiologic facilities without an on-site pathologist.
MATERIALS AND METHODS: 1,244 photomicrographic images of thyroid needle aspiration slides were used to develop training and testing datasets for a YOLOv5 convolutional neural network model. In silico performance was tested for standard metrics. The model was deployed in an application featuring a live, augmented reality microscopy display. Hands-on testing was performed using a set of 50 blinded patient specimens tested in duplicate (N=100) by human observers with no prior formal training in pathology.
RESULTS: On an independent static image test set, the CNN achieved an AUROC of 0.954 (95% CI, 0.922-0.986) using images acquired with a dedicated microscope camera, with sensitivity 0.969, specificity 0.933, and accuracy 95.5%. Using images acquired with a smartphone camera, performance improved to an AUROC of 0.983 (95% CI, 0.965-1.000), with sensitivity 0.980, specificity 1.000, and accuracy 98.8%. In a simulated clinical workflow, human users assisted by the augmented reality AI tool demonstrated 96% concordance with the reference standard FNA adequacy assessment.
CONCLUSION: An augmented reality microscopy tool based on a small-model CNN showed feasibility for performing real-time assessment of thyroid FNA specimen adequacy. Such a tool can enable telecytologic support of FNA assessment in radiologic facilities without an on-site pathologist.