The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
3명의 정상 대상자와 3명의 전방 심근경색증(MI) 환자로부터 기록된 1차원 자기심전도(35.5-D MCG)에서 QRS 복합체를 분석하기 위해 웨이블릿 변환(WT)을 기반으로 한 알고리즘이 개발되었습니다. WT 알고리즘으로 구성된 웨이블릿 등가 필터를 사용하여 전방 심근경색 환자의 후기 필드(LF)와 관련된 QRS 복합체의 고주파 성분을 다른 규모로 검출했습니다. 우리는 다양한 척도에서 RMS(root-mean-square) 값을 계산하여 QRS 복합체의 고주파 성분을 정량화했습니다. LF는 약 110.5~0.1Hz의 주파수 대역에 주로 존재하며, 진폭은 약 0.4~XNUMXpT이다. Bx, By및 Bz 구성 요소. 정상 피험자와 전방 심근경색 환자 사이의 심장 활동을 논의하기 위해 등에너지 등고선 맵을 다양한 규모로 표시하여 QRS 복합체의 공간 에너지 분포(SED)도 평가했습니다. 정상인과 달리 전방 MI 환자는 QRS 복합체의 ST 분절에 대해 다양한 주파수 대역에서 SED의 패턴이 다르게 나타납니다. Bx, By및 Bz 구성 요소. 3차원 MCG에서 QRS 복합체를 분석하기 위해서는 WT 알고리즘을 사용하는 것이 효율적입니다.
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부
Mai LIU, Yoshinori UCHIKAWA, "Discussion of Late Fields of the QRS Complex in Three-Dimensional Magnetocardiogram Based on Wavelet Transform" in IEICE TRANSACTIONS on Information,
vol. E85-D, no. 1, pp. 36-44, January 2002, doi: .
Abstract: An algorithm based on the wavelet transform (WT) was developed to analyze the QRS complex in a three-dimensional magnetocardiogram (3-D MCG) recorded from 3 normal subjects and 1 patient with anterior myocardial infarction (MI). By using a wavelet equivalent filter constructed with the WT algorithm, the high frequency components of the QRS complex related to the late fields (LF) were detected for the patient with anterior MI at different scale. We quantified the high frequency components of the QRS complex by calculating root-mean-square (RMS) value at different scale. The LF mainly existed in the frequency band of about 35.5 to 110.5 Hz with the amplitude of about 0.1 to 0.4 pT for Bx, By, and Bz components. In order to discuss the activities of the heart between the normal subject and the patient with anterior MI, we have also evaluated the spatial energy distribution (SED) of the QRS complex by displaying isoenergy contour maps at different scale. Being different from the normal subject, the patient with anterior MI represented different the pattern of the SED in various frequency band for the ST segment of the QRS complex of Bx, By, and Bz components. It is efficient to use the WT algorithm for analyzing the QRS complex in the 3-D MCG.
URL: https://global.ieice.org/en_transactions/information/10.1587/e85-d_1_36/_p
부
@ARTICLE{e85-d_1_36,
author={Mai LIU, Yoshinori UCHIKAWA, },
journal={IEICE TRANSACTIONS on Information},
title={Discussion of Late Fields of the QRS Complex in Three-Dimensional Magnetocardiogram Based on Wavelet Transform},
year={2002},
volume={E85-D},
number={1},
pages={36-44},
abstract={An algorithm based on the wavelet transform (WT) was developed to analyze the QRS complex in a three-dimensional magnetocardiogram (3-D MCG) recorded from 3 normal subjects and 1 patient with anterior myocardial infarction (MI). By using a wavelet equivalent filter constructed with the WT algorithm, the high frequency components of the QRS complex related to the late fields (LF) were detected for the patient with anterior MI at different scale. We quantified the high frequency components of the QRS complex by calculating root-mean-square (RMS) value at different scale. The LF mainly existed in the frequency band of about 35.5 to 110.5 Hz with the amplitude of about 0.1 to 0.4 pT for Bx, By, and Bz components. In order to discuss the activities of the heart between the normal subject and the patient with anterior MI, we have also evaluated the spatial energy distribution (SED) of the QRS complex by displaying isoenergy contour maps at different scale. Being different from the normal subject, the patient with anterior MI represented different the pattern of the SED in various frequency band for the ST segment of the QRS complex of Bx, By, and Bz components. It is efficient to use the WT algorithm for analyzing the QRS complex in the 3-D MCG.},
keywords={},
doi={},
ISSN={},
month={January},}
부
TY - JOUR
TI - Discussion of Late Fields of the QRS Complex in Three-Dimensional Magnetocardiogram Based on Wavelet Transform
T2 - IEICE TRANSACTIONS on Information
SP - 36
EP - 44
AU - Mai LIU
AU - Yoshinori UCHIKAWA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E85-D
IS - 1
JA - IEICE TRANSACTIONS on Information
Y1 - January 2002
AB - An algorithm based on the wavelet transform (WT) was developed to analyze the QRS complex in a three-dimensional magnetocardiogram (3-D MCG) recorded from 3 normal subjects and 1 patient with anterior myocardial infarction (MI). By using a wavelet equivalent filter constructed with the WT algorithm, the high frequency components of the QRS complex related to the late fields (LF) were detected for the patient with anterior MI at different scale. We quantified the high frequency components of the QRS complex by calculating root-mean-square (RMS) value at different scale. The LF mainly existed in the frequency band of about 35.5 to 110.5 Hz with the amplitude of about 0.1 to 0.4 pT for Bx, By, and Bz components. In order to discuss the activities of the heart between the normal subject and the patient with anterior MI, we have also evaluated the spatial energy distribution (SED) of the QRS complex by displaying isoenergy contour maps at different scale. Being different from the normal subject, the patient with anterior MI represented different the pattern of the SED in various frequency band for the ST segment of the QRS complex of Bx, By, and Bz components. It is efficient to use the WT algorithm for analyzing the QRS complex in the 3-D MCG.
ER -