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computerized ecg machine fdx-6521  (Fukuda Denshi Co)

 
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    Fukuda Denshi Co computerized ecg machine fdx-6521
    Computerized Ecg Machine Fdx 6521, supplied by Fukuda Denshi Co, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/computerized+ecg+machine/recording+system+fdx+6521/pm21672307-30-7-11
    Average 90 stars, based on 1 article reviews
    computerized ecg machine fdx-6521 - by Bioz Stars, 2026-10
    90/100 stars

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    other:

    Article Title: Noninvasive Risk Stratification of Subjects with a Brugada‐Type Electrocardiogram and No History of Cardiac Arrest
    Article Snippet: Analysis of ECG Parameters Mean QRS duration, maximal QTc interval, QT dispersion, and the amplitude of ST‐segment elevation were analyzed automatically using a computerized 12‐lead ECG machine (FDX‐6521, Fukuda Denshi Co., Tokyo, Japan).

    Article Title: Association of corrected QT dispersion with symptoms improvement in patients receiving cardiac resynchronization therapy.
    Article Snippet: Cardiac resynchronization therapy (CRT) is theoretically expected to affect repolarization as well as depolarization.. We studied the effects of CRT on corrected QT (QTc) dispersion in association with symptomatic improvement.. QTc dispersion was analyzed in 26 consecutive patients (67 ± 6 years old, 18 men and 8 women) who underwent CRT.

    Article Title: Noninvasive Risk Stratification of Subjects with a Brugada‐Type Electrocardiogram and No History of Cardiac Arrest
    Article Snippet: Mean QRS duration, maximal QTc interval, QT dispersion, and the amplitude of ST‐segment elevation were analyzed automatically using a computerized 12‐lead ECG machine (FDX‐6521, Fukuda Denshi Co., Tokyo, Japan).

    Article Title: Noninvasive Risk Stratification of Subjects with a Brugada-Type Electrocardiogram and No History of Cardiac Arrest
    Article Snippet: Analysis of ECG Parameters Mean QRS duration, maximal QTc interval, QT dispersion, and the amplitude of ST-segment elevation were analyzed automatically using a computerized 12-lead ECG machine (FDX-6521, Fukuda Denshi Co., Tokyo, Japan).

    Sampling:

    Article Title: QT dispersion measured by automatic computerized 12-lead electrocardiography contributes significantly to detection of left ventricular hypertrophy in Japanese patients.
    Article Snippet: .. A 12-lead ECG was recorded using a computerized ECG machine (FDX-6521; Fukuda Denshi Co., Tokyo, Japan) with a sampling rate of 4000 samples/s per channel, and the frequency response set within the range 0.05 − 150 Hz. ..

    Software:

    Article Title: Assessment of noninvasive markers in identifying patients at risk in the Brugada syndrome: insight into risk stratification.
    Article Snippet: .. Just prior to LP and TWA measurements, the 12-lead ECG was recorded using a computerized ECG machine (FDX-6521, Fukuda Denshi, Tokyo, Japan) with newly developed software (QTD-1, Fukuda Denshi) for QT-interval analysis. ..

    Article Title: QT-interval dispersion in type 2 diabetic and non-diabetic patients with post-myocardial infarction.
    Article Snippet: see front matter a 200 numecd.2006.09.002 Abstract Background and aims: QT-interval dispersion (QTD), which reflects spatial ventricular repolarization inhomogeneity, has been reported to increase and to have a prognostic value in patients with either myocardial infarction or diabetes.. Our aim was to compare increases in QTD in type 2 diabetic and non-diabetic patients following post-myocardial infarction (post-MI).. We also compared QTD in type 2 diabetic patients with post-MI treated with insulin, sulfonylurea, or diet alone.



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    Data collection and labelling. In total, 72 647 12-lead electrocardiograms were retrospectively retrieved. Electrocardiograms with duplicate data ( n = 3111), incomplete information of age or age less than 18 years old ( n = 1673), absence of definite diagnosis ( n = 6759), and those not performed at China Medical University Hospital ( n = 567) were excluded. The remaining 60 537 electrocardiogram signals from 35 981 patients were included in this study.

    Journal: European Heart Journal. Digital Health

    Article Title: Usefulness of multi-labelling artificial intelligence in detecting rhythm disorders and acute ST-elevation myocardial infarction on 12-lead electrocardiogram

    doi: 10.1093/ehjdh/ztab029

    Figure Lengend Snippet: Data collection and labelling. In total, 72 647 12-lead electrocardiograms were retrospectively retrieved. Electrocardiograms with duplicate data ( n = 3111), incomplete information of age or age less than 18 years old ( n = 1673), absence of definite diagnosis ( n = 6759), and those not performed at China Medical University Hospital ( n = 567) were excluded. The remaining 60 537 electrocardiogram signals from 35 981 patients were included in this study.

    Article Snippet: The 12-lead ECG was recorded according to a standardized protocol and lead position at a sampling rate of 500 Hz using a computerized ECG machine (GE Healthcare MAC 2000/3500/5500, USA).

    Techniques: Biomarker Discovery

    Data set for training, validation, and testing of the LSTM model

    Journal: European Heart Journal. Digital Health

    Article Title: Usefulness of multi-labelling artificial intelligence in detecting rhythm disorders and acute ST-elevation myocardial infarction on 12-lead electrocardiogram

    doi: 10.1093/ehjdh/ztab029

    Figure Lengend Snippet: Data set for training, validation, and testing of the LSTM model

    Article Snippet: The 12-lead ECG was recorded according to a standardized protocol and lead position at a sampling rate of 500 Hz using a computerized ECG machine (GE Healthcare MAC 2000/3500/5500, USA).

    Techniques: Biomarker Discovery, Blocking Assay

    Two representative electrocardiograms in the external testing. ( A ) The long short-term memory model, all of the four cardiologists, one of the three emergency physicians, and the commercial algorithm correctly classified the electrocardiogram as second degree AV block and acute STEMI, whereas two emergency physicians and all of the three internists annotated either second degree AV block or ST-elevation myocardial infarction but not both for this electrocardiogram. ( B ) The long short-term memory model correctly classified the electrocardiogram as BIGEMINY and first degree AV block, while most doctors (8 of the 10 physicians) and the commercial algorithm only annotated BIGEMINY but not first degree AV block. Abbreviations for the electrocardiogram diagnoses as in <xref ref-type=Figure 2 . " width="100%" height="100%">

    Journal: European Heart Journal. Digital Health

    Article Title: Usefulness of multi-labelling artificial intelligence in detecting rhythm disorders and acute ST-elevation myocardial infarction on 12-lead electrocardiogram

    doi: 10.1093/ehjdh/ztab029

    Figure Lengend Snippet: Two representative electrocardiograms in the external testing. ( A ) The long short-term memory model, all of the four cardiologists, one of the three emergency physicians, and the commercial algorithm correctly classified the electrocardiogram as second degree AV block and acute STEMI, whereas two emergency physicians and all of the three internists annotated either second degree AV block or ST-elevation myocardial infarction but not both for this electrocardiogram. ( B ) The long short-term memory model correctly classified the electrocardiogram as BIGEMINY and first degree AV block, while most doctors (8 of the 10 physicians) and the commercial algorithm only annotated BIGEMINY but not first degree AV block. Abbreviations for the electrocardiogram diagnoses as in Figure 2 .

    Article Snippet: The 12-lead ECG was recorded according to a standardized protocol and lead position at a sampling rate of 500 Hz using a computerized ECG machine (GE Healthcare MAC 2000/3500/5500, USA).

    Techniques: Blocking Assay

    Performance of the long short-term memory model and different groups of board-certified doctors in detecting acute ST-elevation myocardial infarction and different heart rhythms. These are the accuracies and receiver operating characteristic curves in detecting ( A ) ST-elevation myocardial infarction ( B ) atrial fibrillation ( C ) complete heart block ( D ) paroxysmal supraventricular tachycardia of our artificial intelligence model and the results of a commercial algorithm and different groups of doctors in the comparative external tests. The orange line was the receiver operating characteristic curve of the long short-term memory model. The different colour points represent different groups of board-certified doctors. AI, artificial intelligence; CV, cardiologists; ER, emergency physicians; LSTM, long short-term memory; MR, internists; abbreviations for the electrocardiogram diagnoses are as in <xref ref-type=Figure 2 . Only the four important classes, discussed in the main text are shown here, the rest was presented in Supplementary material online, Figure S1 . " width="100%" height="100%">

    Journal: European Heart Journal. Digital Health

    Article Title: Usefulness of multi-labelling artificial intelligence in detecting rhythm disorders and acute ST-elevation myocardial infarction on 12-lead electrocardiogram

    doi: 10.1093/ehjdh/ztab029

    Figure Lengend Snippet: Performance of the long short-term memory model and different groups of board-certified doctors in detecting acute ST-elevation myocardial infarction and different heart rhythms. These are the accuracies and receiver operating characteristic curves in detecting ( A ) ST-elevation myocardial infarction ( B ) atrial fibrillation ( C ) complete heart block ( D ) paroxysmal supraventricular tachycardia of our artificial intelligence model and the results of a commercial algorithm and different groups of doctors in the comparative external tests. The orange line was the receiver operating characteristic curve of the long short-term memory model. The different colour points represent different groups of board-certified doctors. AI, artificial intelligence; CV, cardiologists; ER, emergency physicians; LSTM, long short-term memory; MR, internists; abbreviations for the electrocardiogram diagnoses are as in Figure 2 . Only the four important classes, discussed in the main text are shown here, the rest was presented in Supplementary material online, Figure S1 .

    Article Snippet: The 12-lead ECG was recorded according to a standardized protocol and lead position at a sampling rate of 500 Hz using a computerized ECG machine (GE Healthcare MAC 2000/3500/5500, USA).

    Techniques: Blocking Assay

    The representative ST-elevation myocardial infarction electrocardiogram images of false negative cases missed by humans and the computer in the external test. ( A ) The artificial intelligence model correctly annotated ST-elevation myocardial infarction, whereas one of the four cardiologists labelled ‘Not STEMI’ resulting in a false negative annotation. ( B ) All the four cardiologists correctly diagnosed ST-elevation myocardial infarction, while the artificial intelligence model annotated ‘Not STEMI’ and it was counted as a false negative.

    Journal: European Heart Journal. Digital Health

    Article Title: Usefulness of multi-labelling artificial intelligence in detecting rhythm disorders and acute ST-elevation myocardial infarction on 12-lead electrocardiogram

    doi: 10.1093/ehjdh/ztab029

    Figure Lengend Snippet: The representative ST-elevation myocardial infarction electrocardiogram images of false negative cases missed by humans and the computer in the external test. ( A ) The artificial intelligence model correctly annotated ST-elevation myocardial infarction, whereas one of the four cardiologists labelled ‘Not STEMI’ resulting in a false negative annotation. ( B ) All the four cardiologists correctly diagnosed ST-elevation myocardial infarction, while the artificial intelligence model annotated ‘Not STEMI’ and it was counted as a false negative.

    Article Snippet: The 12-lead ECG was recorded according to a standardized protocol and lead position at a sampling rate of 500 Hz using a computerized ECG machine (GE Healthcare MAC 2000/3500/5500, USA).

    Techniques:

    Twelve‐lead ECG showing a Brugada‐type ECG of coved type.

    Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

    Article Title: Noninvasive Risk Stratification of Subjects with a Brugada‐Type Electrocardiogram and No History of Cardiac Arrest

    doi: 10.1111/j.1542-474X.2005.00055.x

    Figure Lengend Snippet: Twelve‐lead ECG showing a Brugada‐type ECG of coved type.

    Article Snippet: Analysis of ECG Parameters Mean QRS duration, maximal QTc interval, QT dispersion, and the amplitude of ST‐segment elevation were analyzed automatically using a computerized 12‐lead ECG machine (FDX‐6521, Fukuda Denshi Co., Tokyo, Japan).

    Techniques:

    A spontaneous change of ST segment consistent with the Brugada syndrome in ECG leads V1–V3 taken on July 22, 1999.

    Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

    Article Title: Noninvasive Risk Stratification of Subjects with a Brugada‐Type Electrocardiogram and No History of Cardiac Arrest

    doi: 10.1111/j.1542-474X.2005.00055.x

    Figure Lengend Snippet: A spontaneous change of ST segment consistent with the Brugada syndrome in ECG leads V1–V3 taken on July 22, 1999.

    Article Snippet: Analysis of ECG Parameters Mean QRS duration, maximal QTc interval, QT dispersion, and the amplitude of ST‐segment elevation were analyzed automatically using a computerized 12‐lead ECG machine (FDX‐6521, Fukuda Denshi Co., Tokyo, Japan).

    Techniques: