Automated volumetric assessment of pituitary adenoma

© 2023. The Author(s)..

PURPOSE: Assessment of pituitary adenoma (PA) volume and extent of resection (EOR) through manual segmentation is time-consuming and likely suffers from poor interrater agreement, especially postoperatively. Automated tumor segmentation and volumetry by use of deep learning techniques may provide more objective and quick volumetry.

METHODS: We developed an automated volumetry pipeline for pituitary adenoma. Preoperative and three-month postoperative T1-weighted, contrast-enhanced magnetic resonance imaging (MRI) with manual segmentations were used for model training. After adequate preprocessing, an ensemble of convolutional neural networks (CNNs) was trained and validated for preoperative and postoperative automated segmentation of tumor tissue. Generalization was evaluated on a separate holdout set.

RESULTS: In total, 193 image sets were used for training and 20 were held out for validation. At validation using the holdout set, our models (preoperative / postoperative) demonstrated a median Dice score of 0.71 (0.27) / 0 (0), a mean Jaccard score of 0.53 ± 0.21/0.030 ± 0.085 and a mean 95th percentile Hausdorff distance of 3.89 ± 1.96./12.199 ± 6.684. Pearson's correlation coefficient for volume correlation was 0.85 / 0.22 and -0.14 for extent of resection. Gross total resection was detected with a sensitivity of 66.67% and specificity of 36.36%.

CONCLUSIONS: Our volumetry pipeline demonstrated its ability to accurately segment pituitary adenomas. This is highly valuable for lesion detection and evaluation of progression of pituitary incidentalomas. Postoperatively, however, objective and precise detection of residual tumor remains less successful. Larger datasets, more diverse data, and more elaborate modeling could potentially improve performance.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:83

Enthalten in:

Endocrine - 83(2024), 1 vom: 11. Jan., Seite 171-177

Sprache:

Englisch

Beteiligte Personen:

Da Mutten, Raffaele [VerfasserIn]
Zanier, Olivier [VerfasserIn]
Ciobanu-Caraus, Olga [VerfasserIn]
Voglis, Stefanos [VerfasserIn]
Hugelshofer, Michael [VerfasserIn]
Pangalu, Athina [VerfasserIn]
Regli, Luca [VerfasserIn]
Serra, Carlo [VerfasserIn]
Staartjes, Victor E [VerfasserIn]

Links:

Volltext

Themen:

Deep learning
Endocrinology
Extent of resection
Journal Article
Machine learning
Neurosurgery
Pituitary

Anmerkungen:

Date Completed 24.01.2024

Date Revised 15.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s12020-023-03529-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM362457654