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Open Surgical Insertion of Tenkchoff Straight Catheter Without guide wire

Chinese Medical Sciences Journal 2013年第2期28卷 117-121页

作者： Shi-feng Yang Wu-jun Xue Ai-ping Yin Li-yi Xie Wan-hong Lu Department of Nephrology First Affiliated Hospital of Medical SchoolXi'an Jiaotong University

Objective To compare the clinical outcomes of open surgical peritoneal dialysis catheter （PDC） insertion with guide wire and the outcomes of PDC insertion without guide wire. Methods Data of the patients receiving open surgical Tenkchoff straight catheter insertion in our department from January 2005 to January 2011 were retrospectively analyzed. The 117 patients in whom PDC insertion was conducted with the guidance of guide wire were enrolled into group A, and the 121 cases receiving PDC insertion without guide wire were enrolled into group B. The incidences of post-operative complications （catheter obstruction, catheter displacement, bloody dialysate, and dialysate leakage）, catheter survival, and patient survival rates were compared between the 2 groups. Results The baseline characteristics （gender, age, body mass index, prothrombin time, activated partial thromboplastin time, platelet count, serum creatinine, follow-up time, primary diseases, and outcomes） of the 2 groups were comparable （all P〉0.05）. In post-operative complications, only the incidence of early bloody dialysate showed significant difference, being 16.2% in group A and 7.4% in group B （P=0.04）. Catheter and patient survival rates were not significantly different between the two groups. Overweight patients showed a higher incidence of catheter obstruction compared with normal weight patients [16.0% （4/25） vs. 3.3% （7/213）, P=0.02], but no differences in post-operative between the 2 groups. complications were found among overweight patients Conclusions Open surgical Tenkchoff straight catheter insertion without guide wire does not lead to higher risk of post-operative complications and catheter removal. It may be an alternative option when guide wire is not available.

关键词： peritoneal dialysis catheters surgery guide wire

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VIRTUAL REALITY BASED THREE-DIMENSIONAL guide wire PROPAGATION SIMULATION FOR ENDOVASCULAR INTERVENTION

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Transactions of Nanjing University of Aeronautics and Astronautics 2010年第1期27卷 62-69页

作者：周正东 Pascal Haigron Vincent Guilloux Antoine Lucas 南京航空航天大学材料科学与技术学院法国国家健康与医学研究院雷恩第一大学信号与图像处理实验室中法生物医学信息研究中心法国国家健康与医学研究院临床高新技术研究中心雷恩第一大学附属医院

The virtual reality based motion simulation of the guide wire and the catheter inside specific vascular structures can benefit a lot for the endovascular intervention. A fast and well-performed collision cancellation algorithm is proposed based on the geometric analysis and the angular propagation （AP）, and a 3-D real-time interactive system is developed for the motion simulation of the guide wire and the catheter inside the specific patient vascular. The guide wire or the catheter is modeled as the ＂multi-body＂ representation and properties are defined by its intrinsic characteristics. The motion of the guide wire or the catheter inside the vascular is guided by the collision detection and the collision cancellation algorithm. Finally, a relaxation procedure is used to achieve more realistic status. Experimental results show that the behavior of the guide wire or the catheter depends on the defined parameters. The real-time simulation can be achieved. The result shows that the simulation system is effective and promising.

关键词： catheters virtual reality guide wire multi-body model endovascular intervention

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FEM model for real-time guide wire simulation in vasculature

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Journal of Southeast University(English Edition) 2008年第1期24卷 50-54页

作者：张秋葵 Pascal Haigron 罗立民舒华忠东南大学影像科学与技术试验室南京210096 雷恩第一大学信号与图像处理实验室法国雷恩35042

A model suitable for describing the mechanical response of thin elastic objects is proposed to simulate the deformation of guide wires in minimally invasive interventions. The main objective of this simulation is to provide doctors an opportunity to rehearse the surgery and select an optimal operation plan before the real surgery. In this model the guide wire is discretized with the multi-body representation and its elastic energy derivate from elastic theory is a polynomial function of the nodal displacements. The vascular structure is represented by a tetrahedron mesh extended from the triangular mesh of the artery, which can be extracted from the patient＇s CT image data. The model applies the energy decline process of the conjugate gradient method to the deformation simulation of the guide wire. Experimental results show that the polynomial relationship between elastic energy and nodal displacements tremendously simplifies the evaluation of the conjugate gradient method and significantly improves the model＇s efficiency. Compared with models depending on an explicit scheme for evaluation, the new model is not only non-conditionally stable but also more efficient. The model can be applied to the real-time simulation of guide wire in a vascular structure.

关键词： deformable model finite element method real-time simulation guide wire

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Influence on Visibility Due to Differences of guide wire Movement―Visual &Physical Evaluations

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Open Journal of Applied Sciences 2020年第10期10卷 577-591页

作者： Hisaya Sato Daisuke Kittaka Miwa Ohsawa Kyoichi Kato Graduate School of Health Sciences Showa University Tokyo Japan Department of Radiological Technology Showa University Hospital Tokyo Japan Department of Radiological Technology Showa University Fujigaoka Hospital Yokohama Japan Department of Unification Radiological Technology Showa University Tokyo Japan

The visibility of moving images during cardiac catheterization and treatment may be reduced by a number of factors. First, it involves multiple movements that occur simultaneously, such as the movements due to the heart beat and movement of the guide wire used during the treatment. There is also the influence of the X-ray dose on the image quality in the X-ray output. If X-rays are irradiated onto moving objects such as a guide wire moving during treatment of the heart, cardiac catheterization may be displaced to the next image recorded even when an insufficient X-ray dose has been irradiated because the imaged object is moving during the time the X-rays are emitted (pulse width). If the X-ray dose planned to be irradiated to the target is low, there is also the possibility that noise will appear in the image, and the imaged object may be lost in noise and visibility be reduced. For this reason, we conducted basic research into how changes in the speed of rotation of guide wires affect visibility when wires are positioned horizontally and vertically, using a dynamic phantom and recorded X-ray moving images. The purpose of this study is to elucidate whether the deterioration in the visibility is affected by the X-ray dose, the orientation or movement of a guide wire, or caused by other conditions, in order to contribute to improving the visibility in the X-ray moving images. The results showed a lower visual evaluation only in the vertical direction at the more rapid movement here, but this did not result in significant changes in the physical evaluation. This suggests that the structure and characteristics of the human eyes would be involved, as human vision is stronger with lateral movements and weaker with vertical movements due to the arrangement of the human eyes, side by side. Findings from this basic study can be utilized to improve the visibility in the X-ray moving images by paying attention to the observation environment of the observer of the X-ray moving

关键词： X-Ray Moving Images Visibility Human Vision guide wire

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Treated With Retrograde guide wire Technique:A Case Report

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South China Journal of Cardiology 2009年第1期10卷 34-35页

作者：洪浪王洪尹秋林李林锋赖珩莉陆林祥李彬黄勤邱赟 Department of Cardiology Jiangxi Provincial People's Hospital

Chronic total occlusion （CTO） of coronary artery accounts for 10 % - 20 % in coronary intervention cases. It is the most challenging coronary artery disease at present and is regarded as the most difficult issue for intervention doctor. Herein, we report a case in a 55-year-old woman with right coronary artery opening total occlusion who was treated with retrograde guide wire technique.

关键词： coronary artery disease intervention retrograde arteriography guide wire

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Removal of a pulmonary artery foreign body during pulse ablation in a patient with atrial fibrillation:A case report

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World Journal of Clinical Cases 2023年第27期11卷 6587-6591页

作者： Rui Yan Xin-Yu Lei Jun Li Liang-Liang Jia Hai-Xiong Wang Department of Cardiology Shanxi Cardiovascular HospitalTaiyuan 030000Shanxi ProvinceChina The CT Room of the Imaging Department Shanxi Cardiovascular HospitalTaiyuan 030000Shanxi ProvinceChina

BACKGROUND Foreign bodies in the pulmonary circulation have been documented in the literature and are typically caused by interventional ***,reports of pulmonary artery foreign bodies during femoral vein puncture are rare,and there is no description of this complication from the guidewire surface flows into the pulmonary artery during a pulse ablation in a patient with atrial *** SUMMARY We described a case in which a linear foreign body suddenly appeared on fluoroscopy image during pulsed ablation of atrial *** angiography showed that the foreign body was currently lodged in the pulmonary artery but was hemodynamically *** then chose to use an interventional approach to remove the foreign body from the pulmonary *** foreign body was subsequently confirmed to be from the hydrophilic coating of the guidewire *** may be related to the difficulties encountered during the puncture of the femoral *** is a rare and serious complication of femoral vein ***,we reported this case in order to avoid a similar *** Mismatches between interventional devices from different manufacturers used for femoral venipuncture may result in pulmonary artery foreign bodies.

关键词： Femoral vein puncture Atrial fibrillation guide wire Complication Pulmonary artery foreign body Case report

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Choice PTTM guidewire for recanalization of total occlusive coronary arteries

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Journal of Medical Colleges of PLA(China) 2002年第3期17卷 206-209页

作者：欧阳平何世华陈伟康胡嘉儿 Department of Cardiology Nanfang Hospital First Military Medical University Guangzhou 510515 China Department of Medicine Queen Mary Hospital Hongkong University Hongkong China

Objective: To evaluate the therapeutic effects of 0. 014' Choice PTTM wire in chronic total occlusion angioplasty. Methods: Balloon angioplasty was attempted in 25 arteries with chronic total occlusion, with the mean time of occlusion of 17±13 months (ranging from 2 to 84 months) and mean length of 14±6 mm (ranging from 5 to 25 mm). The morphology of the lesions included bridging collaterals (4 cases), calcification (3 cases) and major side branch at the lesion (4 cases) . Choice PT?wire was used electively in all the cases. Results: Lesion was crossed successfully in 92% (23/25) cases, without incidences of dissection of the coronary artery with subintimal entry. Balloon angioplasy and stenting (n = 21) were performed with good immediate angiograghic results. Acute myocardial infarction or death occurred in none of the patients. Conclusion Successful recanalization of chronic coronary total occlusions using Choice PTTM wire can be achieved with good safety.

关键词： chronic total occlusions angioplasty guide wire

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