Diagnosis of Pituitary Adenoma Biopsies by Ultrahigh Resolution Optical Coherence Tomography Using Neuronal Networks

Bibliographic Details
Title: Diagnosis of Pituitary Adenoma Biopsies by Ultrahigh Resolution Optical Coherence Tomography Using Neuronal Networks
Authors: Alexander Micko, Fabian Placzek, Roger Fonollà, Michael Winklehner, Ryan Sentosa, Arno Krause, Greisa Vila, Romana Höftberger, Marco Andreana, Wolfgang Drexler, Rainer A. Leitgeb, Angelika Unterhuber, Stefan Wolfsberger
Source: Frontiers in Endocrinology, Vol 12 (2021)
Publisher Information: Frontiers Media S.A., 2021.
Publication Year: 2021
Collection: LCC:Diseases of the endocrine glands. Clinical endocrinology
Subject Terms: Optical coherence tomography, pituitary gland, pituitary adenoma (PA), transition zone (TZ), convolutional neural network (CNN), Diseases of the endocrine glands. Clinical endocrinology, RC648-665
More Details: ObjectiveDespite advancements of intraoperative visualization, the difficulty to visually distinguish adenoma from adjacent pituitary gland due to textural similarities may lead to incomplete adenoma resection or impairment of pituitary function. The aim of this study was to investigate optical coherence tomography (OCT) imaging in combination with a convolutional neural network (CNN) for objectively identify pituitary adenoma tissue in an ex vivo setting.MethodsA prospective study was conducted to train and test a CNN algorithm to identify pituitary adenoma tissue in OCT images of adenoma and adjacent pituitary gland samples. From each sample, 500 slices of adjacent cross-sectional OCT images were used for CNN classification.ResultsOCT data acquisition was feasible in 19/20 (95%) patients. The 16.000 OCT slices of 16/19 of cases were employed for creating a trained CNN algorithm (70% for training, 15% for validating the classifier). Thereafter, the classifier was tested on the paired samples of three patients (3.000 slices). The CNN correctly predicted adenoma in the 3 adenoma samples (98%, 100% and 84% respectively), and correctly predicted gland and transition zone in the 3 samples from the adjacent pituitary gland.ConclusionTrained convolutional neural network computing has the potential for fast and objective identification of pituitary adenoma tissue in OCT images with high sensitivity ex vivo. However, further investigation with larger number of samples is required.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-2392
Relation: https://www.frontiersin.org/articles/10.3389/fendo.2021.730100/full; https://doaj.org/toc/1664-2392
DOI: 10.3389/fendo.2021.730100
Access URL: https://doaj.org/article/a41c0dced29e43a5a5150f9df3269528
Accession Number: edsdoj.41c0dced29e43a5a5150f9df3269528
Database: Directory of Open Access Journals
More Details
ISSN:16642392
DOI:10.3389/fendo.2021.730100
Published in:Frontiers in Endocrinology
Language:English