Cardiogoniometry

Sanz, Ernst; Steger, J. P.; Thie, W.

doi:10.1002/clc.4960060502

Cited by 21 publications

(22 citation statements)

References 6 publications

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“…Cardiogoniometry is a new vectorcardiographic method recently described by Sanz and co-workers (Saner et al .• 1982;Sanz et al, 1983). The simplified model developed by this author requires only 4 electrodes instead of the usual 7 to 14 for calculation of the maximal QRS and T vectors in the oblique sagittal and frontal plane and for computation of the true angle between them.…”

Section: Introductionmentioning

confidence: 99%

Cardiogoniometry: A new noninvasive method for detection of ischemic heart disease

Saner

Baur

Sanz

et al. 1983

Clinical Cardiology

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Summary: Cardiogoniometry is a new vectorcardiographic method. The vector-loops are constructed from three orthogonal ECG leads and registered on-line by a microprocessor. The angle between the maximal QRS and T vectors, as well as the spatial orientation of these vectors are very constant in healthy individuals. Deviations of these vectors and angles are sensitive indicators for changes in repolarization occurring, for instance, during coronary insufficiency. The changes in these variables were evaluated in 50 patients with suspected coronary artery disease and correlated with angiographic findings. Cardiogoniometry showed a sensitivity of 79% and a specificity of 82%. which is comparable to exercise testing. In contrast to the latter cardiogoniometry can be performed at rest, is free of risk, and therefore also suitable for elderly patients.

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Section: Introductionmentioning

confidence: 99%

Cardiogoniometry: A new noninvasive method for detection of ischemic heart disease

Saner

Baur

Sanz

et al. 1983

Clinical Cardiology

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“…1 have been published in detail elsewhere [19,20]. Four electrodes define two planes perpendicular to each other.…”

Section: Principles Of Cardiogoniometrymentioning

confidence: 99%

“…They constituted a cohort of patients who were consecutively admitted to the Department of Cardiology, Bern University Hospital over a 12-month period to undergo elective coronary angiography. Prior to coronary angiography, the study data were collected by resting 5-lead CGM on the supine patient using a proprietary CGM prototype [19,20] equipped with software run at a 1000-Hz sampling rate and 16-bit resolution. During the recording, the patients were requested to hold their breath for 12-15 s after normal expiration.…”

Section: Patientsmentioning

confidence: 99%

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Cardiogoniometric parameters for detection of coronary artery disease at rest as a function of stenosis localization and distribution

Huebner

Schuepbach

Seeck

et al. 2010

Med Biol Eng Comput

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Cardiogoniometry (CGM), a spatiotemporal electrocardiologic 5-lead method with automated analysis, may be useful in primary healthcare for detecting coronary artery disease (CAD) at rest. Our aim was to systematically develop a stenosis-specific parameter set for global CAD detection. In 793 consecutively admitted patients with presumed non-acute CAD, CGM data were collected prior to elective coronary angiography and analyzed retrospectively. 658 patients fulfilled the inclusion criteria, 405 had CAD verified by coronary angiography; the 253 patients with normal coronary angiograms served as the non-CAD controls. Study patients--matched for age, BMI, and gender--were angiographically assigned to 8 stenosis-specific CAD categories or to the controls. One CGM parameter possessing significance (P < .05) and the best diagnostic accuracy was matched to one CAD category. The area under the ROC curve was .80 (global CAD versus controls). A set containing 8 stenosis-specific CGM parameters described variability of R vectors and R-T angles, spatial position and potential distribution of R/T vectors, and ST/T segment alterations. Our parameter set systematically combines CAD categories into an algorithm that detects CAD globally. Prospective validation in clinical studies is ongoing.

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“…Therefore, the exercise ECG has been established as the standard method in a primary setting for detection of CAD in patients with suspected stable angina pectoris or without symptoms. However, exercise ECGs are often not meaningful due to limited stress capacity of the patient or are even contraindicated (4). CGM is a novel electrodiagnostic method that analyzes three-dimensional information on cardiac potentials (5,6).…”

Section: Introductionmentioning

confidence: 99%

Accuracy of cardiogoniometry compared with electrocardiography in the diagnosis of coronary artery disease

Firouzi¹,

Ghadrdoost²,

Haghjoo³

2015

Res Cardiovasc Med

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Background: Cardiogoniometry (CGM) is a novel spatiotemporal electrocardiographic method utilizing computer-assisted threedimensional data on cardiac potentials. Objectives: This study compares the accuracy of CGM and electrocardiography (ECG) by detecting coronary artery disease (CAD) with reference to angiography as a well-known gold standard. Patients and Methods: A total of 390 patients undergoing coronary angiography with CAD were enrolled. CGM was performed a few hours prior to coronary angiography. A standard 12-lead ECG was recorded after the CGM. The CGM and ECG results were recorded and analyzed by an independent investigator blinded to all patient data and the results of the coronary angiography. Results:The coronary angiography showed a normal coronary artery in 263 patients (67.4%). A median of CGM score was 1 (0-2), the minimum score was 0 and maximum score was 8. A total of 90 patients (31%) showed predefined ST-segment/T-wave changes in the resting 12-lead ECG. CGM yielded a sensitivity of 84% and specificity of 81% and the ECG yielded a sensitivity of 29% and specificity of 67% when compared with the coronary angiography. Conclusions: CGM is a non-invasive technique recently developed for quantitative three-dimensional vectorial analysis of myocardial activity and detection of ischemia and infarction. This technique is clearly more sensitive and more specific than a standard resting 12-lead ECG.

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Cardiogoniometry

Cited by 21 publications

References 6 publications

Cardiogoniometry: A new noninvasive method for detection of ischemic heart disease

Cardiogoniometry: A new noninvasive method for detection of ischemic heart disease

Cardiogoniometric parameters for detection of coronary artery disease at rest as a function of stenosis localization and distribution

Accuracy of cardiogoniometry compared with electrocardiography in the diagnosis of coronary artery disease

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