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An open source ECG toolkit with DICOM 一个开源的心电图工具包与DICOM
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749073
M. van Ettinger, J. Lipton, M. de Wijs, N. van der Putten, S. Nelwan
{"title":"An open source ECG toolkit with DICOM","authors":"M. van Ettinger, J. Lipton, M. de Wijs, N. van der Putten, S. Nelwan","doi":"10.1109/CIC.2008.4749073","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749073","url":null,"abstract":"Unlike the ubiquitous use of DICOM for sharing various medical image modalities, the storage and retrieval of digital 12-lead electrocardiograms across different ECG management systems is often limited to manual file-based export and import using vendor-specific solutions. In addition to SCP-ECG, a number of open standard initiatives have been introduced, such as DICOM-ECG and HL7 aECG. By extending and improving a previously developed ECG toolkit we have explored the capabilities of these open standards in terms of interoperability, filesize and transmission times. The ECG toolkit is almost entirely available under the Apache License Version 2.0.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133512376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
An automated approach to quantify volumetric coronary plaque composition by multi-slice computed tomography: An ex-vivo feasibility study 多层计算机断层扫描定量冠状动脉斑块组成的自动方法:离体可行性研究
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749098
N. Bruining, S. Verheye, M. Knaapen, P. Somers, E. Regar, J. Ligthart, Filippo Cademartiri, S. de Winter, G. van Langenhove, P. Serruys, P. D. de Feijter, R. Hamers
{"title":"An automated approach to quantify volumetric coronary plaque composition by multi-slice computed tomography: An ex-vivo feasibility study","authors":"N. Bruining, S. Verheye, M. Knaapen, P. Somers, E. Regar, J. Ligthart, Filippo Cademartiri, S. de Winter, G. van Langenhove, P. Serruys, P. D. de Feijter, R. Hamers","doi":"10.1109/CIC.2008.4749098","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749098","url":null,"abstract":"This study explores the possibility to use the Hounsfield unit (HU) distribution of a coronary plaque to quantify its composition when imaged with multi-slice computed tomography (MSCT). Explanted left anterior descending specimens were imaged with different contrast strengths. In one specimen, 5 sections of 0.9 to 1.4 mm long were 3D-quantitatively evaluated against quantitative volumetric histopathology. There were no substantial differences found between the two quantitative methodologies. Both quantitative methodologies showed a remarkable positive correlation. This ex-vivo multi-modality imaging study shows encouraging results for quantitative MSCT-CA based plaque composition measurements compared against quantitative histopathology.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134290633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real-time 3D echocardiographic quantification of left ventricular volumes: Multicenter study for validation with magnetic resonance imaging 实时三维超声心动图定量左心室容积:多中心磁共振成像验证研究
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4748968
V. Mor-Avi, C. Jenkins, H. Kühl, H. Nesser, T. Marwick, A. Franke, C. Ebner, B. Freed, R. Steringer‐Mascherbauer, H. Pollard, L. Weinert, J. Niel, L. Sugeng, R. Lang
{"title":"Real-time 3D echocardiographic quantification of left ventricular volumes: Multicenter study for validation with magnetic resonance imaging","authors":"V. Mor-Avi, C. Jenkins, H. Kühl, H. Nesser, T. Marwick, A. Franke, C. Ebner, B. Freed, R. Steringer‐Mascherbauer, H. Pollard, L. Weinert, J. Niel, L. Sugeng, R. Lang","doi":"10.1109/CIC.2008.4748968","DOIUrl":"https://doi.org/10.1109/CIC.2008.4748968","url":null,"abstract":"Left ventricular (LV) volumes obtained from RT3DE datasets are underestimated compared to cardiac magnetic resonance (CMR). We sought to study the accuracy and reproducibility of this technique in a multicenter setting, the inter-institutional differences in these variables in relationship with investigatorspsila experience, and the potential sources of underestimation. 92 patients underwent CMR and RT3DE imaging at 4 different institutions. End-systolic and end-diastolic LV volumes correlated highly with CMR values (EDV: r=0.91; ESV: r=0.93), but were 29 and 26% lower. This finding was consistent across participating institutions, with the magnitude of bias being related to experience. Exclusion of trabeculae and mitral valve plane from the CMR reference essentially eliminated the inter-modality bias. In conclusion, LV volumes are underestimated in most patients because RT3DE imaging cannot differentiate between the myocardium and trabeculae.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125344637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 284
Epicardial mapping of ventricular fibrillation in the human heart during ischaemia and repercussion 人心脏在缺血和恢复期间心室颤动的心外膜测绘
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749220
R. Clayton, C. Bradley, M. Nash, S. Varma, A. Mourad, D. J. Peterson, M. Heyward, P. Taggart
{"title":"Epicardial mapping of ventricular fibrillation in the human heart during ischaemia and repercussion","authors":"R. Clayton, C. Bradley, M. Nash, S. Varma, A. Mourad, D. J. Peterson, M. Heyward, P. Taggart","doi":"10.1109/CIC.2008.4749220","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749220","url":null,"abstract":"The aim of this study was to map electrical activity over the ventricular epicardial surface during ventricular fibrillation (VF) in the human heart, and to document changes associated with ischaemia and repercussion. In 5 patients undergoing cardiopulmonary bypass VF was induced by burst pacing, and three 30 s episodes of epicardial activity were recorded at I kHz using an epicardial sock with 256 unpopular contact electrodes. The first episode of activity was recorded at the start of VF, the second after 2 minutes of ischaemia, and the third during coronary repercussion. Following 2 minutes of ischaemia the mean dominant frequency (DF) of the epicardial signals fell from 5.6 Hz to 4.5 Hz, and the mean number of epicardial phase singularities increased from 7.8 to 10.5. Following coronary repercussion the mean DF increased to 6.5 Hz, but there was no significant change in the mean number of epicardial phase singularities.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129532370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improved 12-lead ECG reconstruction from lead sub sets by dynamic selection of frontal leads 通过动态选择额叶导联改进导联亚集的12导联心电图重建
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749015
S. Nelwan, D. Finlay, T. van Dam, S. Meij
{"title":"Improved 12-lead ECG reconstruction from lead sub sets by dynamic selection of frontal leads","authors":"S. Nelwan, D. Finlay, T. van Dam, S. Meij","doi":"10.1109/CIC.2008.4749015","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749015","url":null,"abstract":"Patient monitoring with 12-lead ECG subsets typically uses the independent frontal leads I and II and any number of the six precordial leads to reconstruct the unrecorded ECG leads. However, variations of QRS amplitudes in leads I or II may have an effect on the signal to noise ratio of the reconstructed leads. The aim of this study was to develop and evaluate a dynamic frontal lead selection method (DFLS) to improve ECG reconstruction. We compared the DFLS method for general (GEN) and patient-specific (PS) reconstruction with a lead subset I, II, V2, and V5. For GEN reconstruction, a data set of 2372 diagnostic 12-lead ECGs obtained from subjects with chest pain suggestive of acute myocardial infarction was used. For PS, a data set of 71 continuous 12-lead PCI recordings was used. Reconstruction accuracy was assessed with correlation coefficients and root mean square errors. This study showed that the DFLS method increases GEN reconstruction performance in a subgroup with low QRS voltages. PS reconstruction shows a moderate overall performance increase.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130092882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Implementation of a national database infrastructure for registration of clinical procedures and as tool for national benchmarking 实施用于临床程序注册的国家数据库基础设施，并作为国家基准的工具
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749027
E.T. van der Velde, J. Brinkhuis, A. Kloosterman, N. van der Putten, W. Dijk, R. Hoekema, W. Dassen, R. Brand, I. van der Veen, P. Boorsma, M. Schalij
{"title":"Implementation of a national database infrastructure for registration of clinical procedures and as tool for national benchmarking","authors":"E.T. van der Velde, J. Brinkhuis, A. Kloosterman, N. van der Putten, W. Dijk, R. Hoekema, W. Dassen, R. Brand, I. van der Veen, P. Boorsma, M. Schalij","doi":"10.1109/CIC.2008.4749027","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749027","url":null,"abstract":"In the past years, organizations worldwide have put many efforts in establishing guidelines for the medical practice. However, it has become clear that in order to improve patient care it is necessary to check and ensure the adherence to the established guidelines. Therefore, in 2007, the Dutch Society of Cardiology (NVVC) has implemented a structure for national databases that will serve as benchmark tool for the quality assurance of the clinical outcome of cardiology procedures in all hospitals in the Netherlands. For this, the NVVC has instituted an independent foundation: the National Cardiovascular Data Registry (NCDR). The goal is implementation and management of various national databases. These databases will contain data on incidence and prevalence of various cardiovascular diseases, in combination with registration of numbers and results of procedures and interventions.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132006421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
THOPACS : The multi-modality, image review diagnosis, archiving and analysis system THOPACS:多模态、图像复查诊断、存档和分析系统
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749035
N. van der Putten, S. de Winter, M. de Wijs, R. Hamers
{"title":"THOPACS : The multi-modality, image review diagnosis, archiving and analysis system","authors":"N. van der Putten, S. de Winter, M. de Wijs, R. Hamers","doi":"10.1109/CIC.2008.4749035","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749035","url":null,"abstract":"We have developed and introduced a digital multi-modality image infrastructure in a multi-vender networked environment. This cardiology PACS (THOPACS) provides facilities for network communication between all DICOM-image generating systems in the Thoraxcentre. It facilitates hospital-wide access to all cardiology images and analysis results. THOPACS is integrated in the medical workstation of our hospital offering simultaneous presentation of images and related reports along with test results. This paper focuses mainly on the solutions for handling huge datasets, the archiving strategy, the automatic uploading of images from other hospitals, workflow support and the interoperability with image analysis systems.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132921525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel approach to quantitative analysis of intravascular optical coherence tomography imaging 一种定量分析血管内光学相干断层成像的新方法
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749235
K. Sihan, C. Botha, F. Post, S. de Winter, E. Regar, R. Hamers, N. Bruining
{"title":"A novel approach to quantitative analysis of intravascular optical coherence tomography imaging","authors":"K. Sihan, C. Botha, F. Post, S. de Winter, E. Regar, R. Hamers, N. Bruining","doi":"10.1109/CIC.2008.4749235","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749235","url":null,"abstract":"Quantitative analysis on intracoronary optical coherence tomography (OCT) image data (e.g. QOCT) is currently performed by a time-consuming manual contour tracing process in many individual OCT images acquired during a pullback procedure (frame-based method). In order to get a more efficient quantitative analysis process and to investigate the possibilities to use this contour information for development of an image based retrospective OCT-gating method, as a first step a novel approach has been developed that exploits a full automated contour tracing method for coronary lumens in OCT images without the need for intensive observer related actions. This study presents this new method, which was tested on in-vivo acquired human coronary OCT image data of 10 randomly selected patients.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117143155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Analysis and monitoring of patient logistics in the cardiology outpatient clinic 心内科门诊病人后勤分析与监测
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749127
W. Dijk, R. Hoekema, M. V. D. Vlugt, W. Dassen, ET van der Velde, Nhjj van der Putten, C. Hooijschuur, J. Busman
{"title":"Analysis and monitoring of patient logistics in the cardiology outpatient clinic","authors":"W. Dijk, R. Hoekema, M. V. D. Vlugt, W. Dassen, ET van der Velde, Nhjj van der Putten, C. Hooijschuur, J. Busman","doi":"10.1109/CIC.2008.4749127","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749127","url":null,"abstract":"This paper describes the AMOC project which aims at the improvement of patient throughput in the outpatient clinics. Indicators describing the workflow were extracted and serve as a base for a so called continuous improvement model. As pro actively monitoring the workflow turned out to be the best tool to optimize the throughput, a computer system was developed to present in a ldquodashboardrdquo like manner the state of the indicators.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"26 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122588032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glucose control as a model for implementation of a clinical decision support system 血糖控制作为临床决策支持系统实施的模型
2008 Computers in Cardiology Pub Date : 2008-12-01 DOI: 10.1109/CIC.2008.4749128
J. Lipton, R. Barendse, E.F.H.A. Eenkhoorn, J. van der Ende, T. van Dam, M. van Ettinger, S. Nelwan, M. van der Ent, N. van der Putten
{"title":"Glucose control as a model for implementation of a clinical decision support system","authors":"J. Lipton, R. Barendse, E.F.H.A. Eenkhoorn, J. van der Ende, T. van Dam, M. van Ettinger, S. Nelwan, M. van der Ent, N. van der Putten","doi":"10.1109/CIC.2008.4749128","DOIUrl":"https://doi.org/10.1109/CIC.2008.4749128","url":null,"abstract":"Glucose control in acute cardiac disease is difficult to achieve and may improve patient outcome. Because glucose levels were high at the Intensive Cardiac Care Unit, and adherence to a paper protocol was low, a web based decision support system for glucose control was developed. A board view of the currently admitted patients is provided; new glucose values are retrieved along with insulin infusion rates and patient data from the Patient Data Management System. For each new glucose value a pop-up is generated with the protocol advised action for insulin dosage and time for the next glucose measurement. Temporal trends in glucose and insulin values are displayed as an additional aid. An evaluation database is included in the design to provide feedback to the users on protocol compliance and glucose control. These data will also be used to improve the protocol.","PeriodicalId":194782,"journal":{"name":"2008 Computers in Cardiology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125480733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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