Preoperative and intraoperative image processing for assisting endovascular stent grafting

Eiho, S.; Imamura, H.; Sugimoto, N.

doi:10.1109/icks.2004.1313412

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…Another approach to support the preoperative planning phase and the intraoperative intervention of aortic aneurysms has been presented by Eiho et al [5] who have also introduced a semiautomatic system for stent visualization. A segmentation and navigation tool to support endovascular treatment of abdominal aortic aneurysms has been presented by Feuerstein et al [6].…”

Section: Related Workmentioning

confidence: 99%

Body landmark detection for a fully automatic AAA stent graft planning software system

Egger

Zhou

Groskopf

et al. 2010

2010 IEEE 23rd International Symposium on Computer-Based Medical Systems (CBMS)

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In this paper, we present an approach to automate the planning of an endovascular stent graft for abdominal aortic aneurysms (AAAs), which are treated with bifurcated prosthesis (Y-stents) when located close to the iliac bifurcation. During the intervention, the folded Y-stent graft -consisting of several partsis inserted via the iliac region and expanded inside the patient's body. The first step of the proposed approach is to detect different body landmarks with a statistical method. In the next step, these landmarks are used to calculate two vascular centerlines, which provide multiplanar reformatting (MPR) slices that are used for an automatic segmentation of the artery walls. The segmented artery walls provide the manufacturer specific measures to choose an adequate bifurcated prosthesis. In a final step, the expansion of the stent is simulated in the patient's data. Results for 50 abdominal aortic aneurysm cases provided by computed tomography angiography (CTA) acquisitions are successfully verified by a virtual stenting expert.

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Section: Related Workmentioning

confidence: 99%

Body landmark detection for a fully automatic AAA stent graft planning software system

Egger

Zhou

Groskopf

et al. 2010

2010 IEEE 23rd International Symposium on Computer-Based Medical Systems (CBMS)

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“…These are all beneficial to endovascular treatment/surgical planning and simulation. In addition, centerlines of the augmented vessels estimated could be used to assist endovascular stent grafting [62] and simulate stent pose [63] in occlusion and recanalization treatments, respectively.…”

Section: F Further Possible Applicationsmentioning

confidence: 99%

Augmented vessels for quantitative analysis of vascular abnormalities and endovascular treatment planning

Wong

Chung

2006

IEEE Trans. Med. Imaging

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Abstract-Endovascular treatment plays an important role in the minimally invasive treatment of patients with vascular diseases, a major cause of morbidity and mortality worldwide. Given a segmentation of an angiography, quantitative analysis of abnormal structures can aid radiologists in choosing appropriate treatments and apparatuses. However, effective quantitation is only attainable if the abnormalities are identified from the vasculature. To achieve this, a novel method is developed, which works on the simpler shape of normal vessels to identify different vascular abnormalities (viz. stenotic atherosclerotic plaque, and saccular and fusiform aneurysmal lumens) in an indirect fashion, instead of directly manipulating the complex-shaped abnormalities. The proposed method has been tested on three synthetic and 17 clinical data sets. Comparisons with two related works are also conducted. Experimental results show that our method can produce satisfactory identification of the abnormalities and approximations of the ideal post-treatment vessel lumens. In addition, it can help increase the repeatability of the measurement of clinical parameters significantly.

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A method for integrating finite element results in a surgical planning software for evaluating stent graft properties in endovascular surgery

Sachsen

Mohr

Senf

et al. 2011

2011 4th International Conference on Biomedical Engineering and Informatics (BMEI)

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Abdominal aortic reconstruction using a stent graft is used especially in high-risk patients. However, this procedure poses the risk of migration and leakage, which could require follow-up interventions. One approach that is being considered to reduce these post-operative complications, is the provision of a finite-element model for better evaluation of graft configurations with respect to maximum attainable fixing force and sealing potential, which aids vascular medicine specialists in graft selection. This article presents a method for integrating and evaluating the calculation results of a finite-element simulation in a planning software. The requirements an evaluation module has to meet were defined jointly with vascular medicine specialists. Based on this, relevant data from the ANSYS simulation software were exported using an APDL script and provided in the form of an application-specific plug-in using the C++ based Medical Interaction Imaging Toolkit (MITK) development environment. The module developed for evaluating FE results obtained within a surgical software enables user-controlled visualization of outcome variables that are relevant for planning and a selection of data for comparing multiple calculated graft variants.

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Preoperative and intraoperative image processing for assisting endovascular stent grafting

Cited by 5 publications

References 17 publications

Body landmark detection for a fully automatic AAA stent graft planning software system

Body landmark detection for a fully automatic AAA stent graft planning software system

Augmented vessels for quantitative analysis of vascular abnormalities and endovascular treatment planning

A method for integrating finite element results in a surgical planning software for evaluating stent graft properties in endovascular surgery

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