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30. International Survey on Criteria for Training and Accreditation in Interventional Neuroradiology

Author

Song, Yunsun, Kim, Minjae, Söderman, Michael, Suh, Dae Chul, and van den Berg, René

Subjects
Original Paper, lcsh:R5-920, Medical education, training, business.industry, Rapid expansion, education, Specialty, International survey, Charter, Training (civil), accreditation, lcsh:RC321-571, health services administration, interventional neuroradiology, Medicine, medical education, lcsh:Medicine (General), business, lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry, Interventional neuroradiology, Accreditation, Neuroradiology
Abstract

Purpose: With the rapid expansion of the field of interventional neuroradiology (INR) and the diverse background of aspiring neuro-interventionists, there is an ever increasing need to establish consensus criteria for training and accreditation in INR.Materials and Methods: We performed a survey to explore the current state of criteria for training and accreditation in INR. The questionnaire consisting of 11 questions was emailed to the members of World Federation of Interventional and Therapeutic Neuroradiology (WFITN) worldwide. It was focused on the training charter, training program, qualifying examination, and education after training program as perceived by practitioners in each country.Results: A total of 52 WFITN members in 19 countries responded to the questionnaire. There was a huge variation internationally and nationally due to the unique situation and challenges in each country and institution. Criteria for training and accreditation in INR were well established in some countries of Europe, North America, and Asia but not specified in other countries.Conclusion: It is critical to establish consensus criteria for training and accreditation in INR in order to ensure safe practice and continued expansion and development of INR as a specialty.

Published
2020

41. Three-dimensional blood vessel quantification via centerline deformation

Author

Kang, Dong-Goo, Suh, Dae Chul, and Ra, Jong Beom

Subjects
Business, Electronics, Electronics and electrical industries, Health care industry
Abstract

It is clinically important to quantify the geometric parameters of an abnormal vessel, as this information can aid radiologists in choosing appropriate treatments or apparatuses. Centerline and cross-sectional diameters are commonly used to characterize the morphology of vessel in various clinical applications. Due to the existence of stenosis or aneurysm, the associated vessel centerline is unable to truly portray the original, healthy vessel shape and may result in inaccurate quantitative measurement. To remedy such a problem, a novel method using an active tube model is proposed. In the method, a smoothened centerline is determined as the axis of a deformable tube model that is registered onto the vessel lumen. Three types of regions, normal, stenotic, and aneurysmal regions, are defined to classify the vessel segment under-analyzed by use of the algorithm of a cross-sectional-based distance field. The registration process used on the tube model is governed by different region-adaptive energy functionals associated with the classified vessel regions. The proposed algorithm is validated on the 3-D computer-generated phantoms and 3-D rotational digital subtraction angiography (DSA) datasets. Experimental results show that the deformed centerline provides better vessel quantification results compared with the original centerline. It is also shown that the registered model is useful for measuring the volume of aneurysmal regions. Index Terms--Centerline deformation, complementary geodesic distance field, model-based quantification, region-based active tube model.

Published
2009

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