RT journal article
T1 Artificial Intelligence to Determine Correct Midsagittal Plane in Dynamic Transperineal Ultrasound
A1 García-Mejido, José Antonio
A1 Galán Paez, Juan
A1 Solís Martín, David
A1 Martín Morán, Marina
A1 Borrero-Gonzalez, Carlota
A1 Fernández-Gómez, Alfonso
A1 Fernández Palacín, Fernando
A1 Sainz Bueno, José Antonio
A2 Estadística e Investigación Operativa
K1 artificial intelligence
K1 gradient boosting
K1 levator ani muscle
K1 machine learning
K1 pelvic floor
K1 ultrasonography
K1 XGBoost
AB PurposeTo create and validate a machine learning(ML) model that allows for identifying the correct capture of the midsagittal plane in a dynamic ultrasound study, as well as establishing its concordance with a senior explorer and a junior explorer.MethodsObservational and prospective study with 90 patients without pelvic floor pathology. Each patient was given an ultrasound video where the midsagittal plane of the pelvic floor was recorded at rest and during the Valsalva maneuver. A segmentation model was used that was trained on a previously published article, generating the segmentations of the 90 new videos to create the model. The algorithm selected to build the model in this project was XGBoost(Gradient Boosting). To obtain a tabular dataset on which to train the model, feature engineering was carried out on the raw segmentation data. The concordance of the model, of a junior examiner and a senior examiner, with the expert examiner was studied using the kappa index.ResultsThe first 60 videos were used to train the model and the last 30 videos were reserved for the test set. The model presented a kappa index 0.930(p < 0.001) with very good agreement for detection of the correct midsagittal plane. The junior explorer presented a very good agreement (kappa index = 0.930(p < 0.001)). The senior explorer presented a kappa index 0.789(p < 0.001) (good agreement) for detection of the correct midsagittal plane.ConclusionWe have developed a model that allows determining the correct midsagittal plane captured through dynamic transperineal ultrasound with a level of agreement comparable to or greater than that of a junior or senior examiner, using expert examiner assessment as the gold standard.
PB Wiley
SN 1097-0096
YR 2025
FD 2025-04-25
LK http://hdl.handle.net/10498/37871
UL http://hdl.handle.net/10498/37871
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026