Training in interventional radiology is slowly shifting towards simulation which allows the repetition of many interventions without putting the patient at risk. Accurate segmentation of anatomical structures is a prerequisite of realistic surgical simulation. Therefore, our aim is to develop a generic approach to provide fast and precise segmentation of various virtual anatomies covering a wide range of pathology, directly from patient CT/MRA images. This paper presents a segmentation framework including two segmentation methods: region model based level set segmentation and hierarchical segmentation. We compare them to an open source application ITK-SNAP which provides similar approaches. The subjective human influence such as inconsistent inter-observer errors and aliasing artifacts etc. are analysed. The proposed segmentation techniques have been successfully applied to create a database of various anatomies with different pathologies, which is used in computer-based simulation for interventional radiology training.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Automated spinopelvic measurements on radiographs with artificial intelligence: a multi-reader study.
Radiol Med
January 2025
Department of Radiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.
Purpose: To develop an artificial intelligence (AI) algorithm for automated measurements of spinopelvic parameters on lateral radiographs and compare its performance to multiple experienced radiologists and surgeons.
Methods: On lateral full-spine radiographs of 295 consecutive patients, a two-staged region-based convolutional neural network (R-CNN) was trained to detect anatomical landmarks and calculate thoracic kyphosis (TK), lumbar lordosis (LL), sacral slope (SS), and sagittal vertical axis (SVA). Performance was evaluated on 65 radiographs not used for training, which were measured independently by 6 readers (3 radiologists, 3 surgeons), and the median per measurement was set as the reference standard.
[Efficacy and safety of transarterial chemoembolization combined with sintilimab and bevacizumab biosimilar for unresectable hepatocellular carcinoma].
Zhonghua Nei Ke Za Zhi
February 2025
Department of Interventional Radiology, the First Affiliated Hospital of Soochow University, Suzhou215000, China.
To investigate the efficacy and safety of transarterial chemoembolization (TACE) combined with sintilimab and bevacizumab biosimilar in the treatment of unresectable hepatocellular careinoma (uHCC). The clinical data of 64 patients with unresectable HCC, who were admitted to the First Affiliated Hospital of Soochow University between January 2021 and December 2023, were retrospectively analyzed. The patients were divided into a combination group (=43, receiving TACE combined with sintilimab and bevacizumab biosimilar) and control group (=21, receiving only sintilimab and bevacizumab biosimilar).
View Article and Find Full Text PDFPulmonary Vascular Interventions.
Radiol Clin North Am
March 2025
Section of Interventional Radiology, Department of Radiology, University of Washington, Box 357233, 1959 Northeast Pacific Street, Seattle, WA 98195, USA.
Endovascular intervention is a safe, effective treatment modality in the management of diverse pulmonary vascular pathologies, including acute or chronic thromboembolic disease, pulmonary arteriovenous malformations (pAVMs), pulmonary artery or bronchial artery hemorrhage, and foreign body retrieval. This article reviews indications, contraindications, techniques, and outcomes in endovascular management of common pulmonary vascular pathologies, with the goal of improving operator familiarity and facility with these procedures.
View Article and Find Full Text PDFCerebral perfusion correlates with amyloid deposition in patients with mild cognitive impairment due to Alzheimer's disease.
J Prev Alzheimers Dis
February 2025
Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China, 154 Anshan Road Tianjin 300052, PR China; Department of Neurology, Tianjin Medical University General Hospital Airport Site, Tianjin 300052, PR China. Electronic address:
Background: Changes in cerebral blood flow (CBF) may contribute to the initial stages of the pathophysiological process in patients with Alzheimer's disease (AD). Hypoperfusion has been observed in several brain regions in patients with mild cognitive impairment (MCI). However, the clinical significance of CBF changes in the early stages of AD is currently unclear.
View Article and Find Full Text PDFEthiodized Oil Pickering Emulsion for Sustained Release of Anti-PD-L1 Antibodies.
J Vasc Interv Radiol
January 2025
Department of Diagnostic and Interventional Radiology, Osaka University Graduate School of Medicine. 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Purpose: This research aimed to develop and assess a Lipiodol Pickering emulsion containing anti-Programmed cell Death Ligand 1 (PD-L1) antibodies through in vitro experiments.
Materials And Methods: The emulsion was created by combining Lipiodol with poly (lactic-co-glycolic acid) (PLGA) nanoparticles and anti-PD-L1 antibodies. Confocal laser microscopy was used to evaluate the encapsulation of the antibodies within the Pickering emulsion.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!