@inproceedings{1f344a257ec44c49a399ac2c53e479d8,
title = "Automatic Artery/Vein Classification in 2D-DSA Images of Stroke Patients",
abstract = "To develop an objective system for perfusion assessment in digital subtraction angiography (DSA), artery-vein (A/V) classification is essential. In this study, an automated A/V classification system in 2D DSA images of stroke patients is proposed. After preprocessing through vessel segmentation with a Frangi fitler and Gaussian smoothing, a time-intensity curve (TIC) of each vessel pixel was extracted and relevant parameters were calculated. Different combinations of input parameters were systematically tested to come to the optimal set of input parameters. The parameters formed the input for k-means (KM) and fuzzy c-means (FCM) clustering. Both algorithms were tested for clustering into 2 to 7 clusters. Cluster labeling was performed based on the average time to peak (TTP) of a cluster. A reference standard consisted of manually annotated DSA images of the MR CLEAN registry. Outcome measures were accuracy, true artery rate (TAR) and true vein rate (TVR). The optimal value for k was found to be 2 for both KM and FCM clustering. The optimal parameter set was: variance, standard deviation, maximal slope, peak width, time to peak, arrival time, maximal intensity and area under the TIC. No significant difference was found between FCM and KM clustering and. Both FCM and KM clustering yielded an average accuracy of 76%, average TAR of 74% and average TVR of 80%. ",
keywords = "Artery-vein classification, DSA, Stroke, Vessels, 22/3 OA procedure",
author = "{Van Asperen}, Vivian and {Van Den Berg}, Josefien and Fleur Lycklama and Victoria Marting and Sandra Cornelissen and {Van Zwam}, {Wim H.} and Jeanette Hofmeijer and {Van Der Lugt}, Aad and {Van Walsum}, Theo and {Van Der Sluijs}, Matthijs and Ruisheng Su",
note = "Funding Information: We thank the MR CLEAN Registry investigators for sharing the DSA image data. The MR CLEAN Registry was funded and carried out by the Erasmus University Medical Centre, Amsterdam UMC location AMC, and Maastricht University Medical Centre. The study was additionally funded by the Applied Scientific Institute for Neuromodulation (Toegepast Wetenschappelijk Instituut voor Neuromodulatie). Publisher Copyright: {\textcopyright} 2022 SPIE.; SPIE Medical Imaging 2022 : Image-Guided Procedures, Robotic Interventions, and Modeling ; Conference date: 21-03-2022 Through 27-03-2022",
year = "2022",
month = apr,
day = "4",
doi = "10.1117/12.2606412",
language = "English",
isbn = "978-1-5106-4943-9",
volume = "12034",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
editor = "Linte, {Cristian A.} and Siewerdsen, {Jeffrey H.}",
booktitle = "Medical Imaging 2022",
address = "United States",
}