International journal of clinical monitoring and computing最新文献_第6页

The application of an artificial neural network to Doppler ultrasound waveforms for the classification of arterial disease. 应用人工神经网络对多普勒超声波形进行动脉疾病分类。

International journal of clinical monitoring and computing Pub Date : 1996-05-01 DOI: 10.1007/BF02915843

J H Smith, J Graham, R J Taylor

引用次数: 25

Cognitive integration of data in intensive care and anaesthesia. 重症监护和麻醉数据的认知整合。

International journal of clinical monitoring and computing Pub Date : 1996-05-01 DOI: 10.1007/BF02915841

W G Cole

引用次数: 2

Patient data management systems in intensive care--1996 ESCTAIC & SCCCPMA satellite symposium. European Society of Computing and Technology in Anesthesia and Intensive Care. American society for Computing in Critical Care, Pulmonary Medicine and Anesthesia. 重症监护患者数据管理系统——1996 ESCTAIC & SCCCPMA卫星研讨会。欧洲麻醉与重症监护计算机与技术学会。美国重症监护、肺医学和麻醉计算机学会。

International journal of clinical monitoring and computing Pub Date : 1996-05-01 DOI: 10.1007/BF02915846

P G Metnitz, M Hiesmayr, C Popow, K Lenz

引用次数: 4

Auditory alarms during anesthesia monitoring with an integrated monitoring system. 综合监测系统麻醉监测中的听觉报警。

International journal of clinical monitoring and computing Pub Date : 1996-05-01 DOI: 10.1007/BF02915842

F E Block, C Schaaf

{"title":"Auditory alarms during anesthesia monitoring with an integrated monitoring system.","authors":"F E Block, C Schaaf","doi":"10.1007/BF02915842","DOIUrl":"https://doi.org/10.1007/BF02915842","url":null,"abstract":"Alarms in the operating room remain a major source of annoyance and confusion. A previous study by Kestin et al. utilized a specific combination of distinct, separate monitors in 50 pediatric patients. He reported a mean of 10 alarms per case with a mean frequency of one alarm every 4.5 minutes. The alarms were classified as spurious (75%), change outside the alarm limits (22%), or patient risk (3%). We performed a similar study with 50 adult patients under general anesthesia with default alarm settings on an integrated monitor, (Cardiocap, Datex, Helsinki). In our study, the number of alarms averaged 3 per case with a mean frequency of one every 34 minutes. Spurious alarms (those caused by electrocautery, accidental patient movement, or other non-physiological reasons) represented only 24% of all alarms. Those alarms sounding that were outside the limits occurred at a rate of 53%, and those that were considered patient risks occurred at a rate of 23%. Of the alarms, 67% occurred during the beginning and end of anesthesia. The end-tidal carbon dioxide accounted for 42% of the alarms, mostly during intubation and extubation. Suggestions are made for further improvement in alarm systems.","PeriodicalId":77181,"journal":{"name":"International journal of clinical monitoring and computing","volume":"13 2","pages":"81-4"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02915842","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19876888","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: 24

Possibilities of classification of topographically distributed neurophysiological multi-channel data. 地理分布神经生理多通道数据分类的可能性。

International journal of clinical monitoring and computing Pub Date : 1996-02-01 DOI: 10.1007/BF02918209

L Rölz, S Wolter, B Klee, E Schöntube

{"title":"Possibilities of classification of topographically distributed neurophysiological multi-channel data.","authors":"L Rölz, S Wolter, B Klee, E Schöntube","doi":"10.1007/BF02918209","DOIUrl":"https://doi.org/10.1007/BF02918209","url":null,"abstract":"Progress in quantifying states of cerebral function and in the further development of automated EEG processing demands the application of suitable methods for the reduction of neurophysiological multi-channel data as well as their automatic classification. The method used here for reducing multi-channel data was to gain distributions of parametric descriptors from EEG data from computer-aided topographic electroencephalometry (CATEEM), for example the relative and absolute band power in the frequency bands delta, theta, alpha 1, alpha 2, beta 1, beta 2, total power, median and mode frequency, and other parameters. These values were subjected to cluster analysis. The classification of EEG parameters was carried out by means of discrimination analysis and neural networks. The practicability of both procedures was demonstrated in the reduction and classification of EEG data in the context of a normed study involving 104 healthy adults. These data have been used as the basis for a new evaluation study of 60 additional intraoperative EEG recordings obtained with CATEEM. In that newly started study, the effects of sedative and anaesthetic drugs on EEG behavior and psychophysiologic behavior remain to be investigated.","PeriodicalId":77181,"journal":{"name":"International journal of clinical monitoring and computing","volume":"13 1","pages":"27-34"},"PeriodicalIF":0.0,"publicationDate":"1996-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02918209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19712064","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: 2

Automatic record keeping in anaesthesia--a nine-year Italian experience. 麻醉中的自动记录保存——意大利九年的经验。

International journal of clinical monitoring and computing Pub Date : 1996-02-01 DOI: 10.1007/BF02918210

V Lanza

{"title":"Automatic record keeping in anaesthesia--a nine-year Italian experience.","authors":"V Lanza","doi":"10.1007/BF02918210","DOIUrl":"https://doi.org/10.1007/BF02918210","url":null,"abstract":"In 1986, in Buccheri La Ferla Hospital, Palermo, an anaesthesia information management project was started. Its aim was to develop a computerized anaesthesia workstation. Today, the system is in daily clinical use and has reached most of its original goals: Automatic collection of physiological signals and patient monitor trends is possible by means of analog-digital conversion or by using serial data transfer. A centralized display is included in the system to allow easy control of the progress of the anaesthetic procedures in the hospital. Available in the workstation, there is an on-line help function to assist pharmacological calculations and administration of anaesthesia drugs. Mail messages can be sent to different anaesthesia workstations and data can be shared between them. Information collected during preoperative visits is automatically transferred from a portable personal computer to the system. There is a nine-year patient data-base with both preoperative and perioperative anaesthesia information which can be accessed from each of the workstations. Today, the system is in daily routine use and comprises eight anaesthesia workstations and two portable personal computers used for preoperative visits. The operation schedule with anaesthetists' notes is printed both for surgical wards and for O.R., using information stored from preoperative visits to the system. For automated data collection a trend resolution of one minute has been used. The postoperative orders are printed from the system in the recovery room and given to the wards with the patient. The feedback from the seventeen anaesthetists and twenty-four nurses who use the system routinely is positive. Today, 16,000 patient records are available in the database. This number increases by 3,300 every year. With increasing computer utilization in patient treatment there have been no legal or administrative controversies. Based on nine years' experience, it is clear that the use of computers in anaesthesia practice improves quality of patient care.","PeriodicalId":77181,"journal":{"name":"International journal of clinical monitoring and computing","volume":"13 1","pages":"35-43"},"PeriodicalIF":0.0,"publicationDate":"1996-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02918210","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19712066","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: 11

Non-localizable alarm. Non-localizable警报。

International journal of clinical monitoring and computing Pub Date : 1996-02-01 DOI: 10.1007/BF02918212

F E Block

引用次数: 0

Abdominal surgery alters the calibration of bioimpedance cardiac output measurement. 腹部手术改变了生物阻抗心输出量测量的校准。

International journal of clinical monitoring and computing Pub Date : 1996-02-01 DOI: 10.1007/BF02918206

L A Critchley, D H Leung, T G Short

{"title":"Abdominal surgery alters the calibration of bioimpedance cardiac output measurement.","authors":"L A Critchley, D H Leung, T G Short","doi":"10.1007/BF02918206","DOIUrl":"https://doi.org/10.1007/BF02918206","url":null,"abstract":"The performance of impedance cardiography (TEBco), using the BoMed NCCOM3-R7S, and thermodilution (TDco) were compared in eight patients during major abdominal surgery. An opioid, volatile and relaxant anaesthetic technique was employed. This was supplemented with an epidural in five cases. Sets of three cardiac output readings, for both methods, were made at 10-20 min intervals throughout surgery. Data were compared using the Bland and Altman method, regression analysis and a nested model to measure variance components at different stages of surgery. Data from 157 sets of readings are presented. Agreement between the two devices was poor, with a ratio of TDco/TEBco of 115% and limits of agreement of 51-193%. The regression line was TDco = (0.98) x TEBco-0.95 with r = 0.60. A more detailed analysis, using nested data, showed good repeatability with coefficients of variation of 5.4% for TDco and 4.8% for TEBco. During surgery shifts in the bias between the two devices occurred, which were related to changes in surgical conditions. Between shifts both devices showed good repeatability over time. Variance components were 0.27 within nested data and 0.082 between bias shifts, with a significantly greater overall component of 1.2 (ANOVA; P = 0.0001). Shifts could be explained by deficiencies in the algorithm used to calculate TEBco. Current TEBco technology is too inaccurate for intra-operative use. However, under stable operating conditions TEBco and TDco showed good repeatability.","PeriodicalId":77181,"journal":{"name":"International journal of clinical monitoring and computing","volume":"13 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"1996-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02918206","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19712061","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: 16

Optimal surface electrode positioning for reliable train of four muscle relaxation monitoring. 最佳表面电极定位可靠训练的四种肌肉松弛监测。

International journal of clinical monitoring and computing Pub Date : 1996-02-01 DOI: 10.1007/BF02918207

J Smans, H H Korsten, J A Blom

{"title":"Optimal surface electrode positioning for reliable train of four muscle relaxation monitoring.","authors":"J Smans, H H Korsten, J A Blom","doi":"10.1007/BF02918207","DOIUrl":"https://doi.org/10.1007/BF02918207","url":null,"abstract":"In the clinic, a major problem in train of four (TOF) muscle relaxation monitoring is incorrect placement of stimulation and recording electrodes, frequently resulting in incorrect estimates of the patient's degree of relaxation or in abandonment of relaxation monitoring. The aim of this study was to arrive at recommendations that describe how to find optimal positions for the electrodes, where 'optimal' is taken in the sense that small deviations from these positions introduce no or only a small decline in the accuracy of the computed degree of muscle relaxation. This study, which employed the Relaxograph as the stimulation and measuring device, established that incorrect positioning is a real problem that frequently occurs; that the correctness of positioning is not guaranteed when the calibration of the Relaxograph succeeds; that the inadequacy of the electrode position is sometimes discovered for the first time when relaxation deepens; that positioning errors can be discovered by analysing the shape of the evoked compound action potential (ECAP), not only upon calibration but also when relaxation deepens; that a set of optimal electrode positions can be found; and that recommendations of how to find these optimal positions could help clinicians to place the electrodes in such a way, that reliable relaxation monitoring was possible in 100% of the investigated cases. In a first test in 30 adult patients, we surveyed how clinicians routinely positioned electrodes and found that in 14 of the 30 cases positioning was unsuccessful. In a second test in 10 patients, we tested a variety of electrode positions in order to discover 'optimal' stimulation, recording and ground electrode sites. In a third test in 10 patients, electrodes were positioned at these 'optimal' sites; stimulation and recording at these sites was successful in all 10 cases.","PeriodicalId":77181,"journal":{"name":"International journal of clinical monitoring and computing","volume":"13 1","pages":"9-20"},"PeriodicalIF":0.0,"publicationDate":"1996-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02918207","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19814301","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: 14

Safety factors in the remote control of infusion devices. 输液装置远程控制中的安全因素。

International journal of clinical monitoring and computing Pub Date : 1996-02-01 DOI: 10.1007/BF02918211

F R Cantraine, E J Coussaert

引用次数: 4