関: dynamic ECG

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1. 加算平均心電図：技術面および臨床応用の概要signal averaged electrocardiogram overview of technical aspects and clinical applications [show details]
… substrates for ventricular tachycardia (VT) rather than a dynamic predisposition to form a reentrant circuit.…surface ECG. Signals from the His bundle as well as subtle abnormalities of atrial or ventricular complexes, anomalies not visualized on a surface ECG, are detectable using the SAECG. The ECG can be averaged…
2. 術前の心電図検査：麻酔管理に利用するための評価the preoperative ecg evaluation and implications for anesthetic management [show details]
… preoperative ECG abnormality depends in part on the answers to the following questions: Is the abnormality new or old? An attempt should be made to compare the current ECG with one or more older ECGs. Many patients …
3. 24時間ECGモニタリングambulatory ecg monitoring [show details]
… period of time, thereby permitting evaluation of dynamic and transient cardiac electrical phenomena. The most common ambulatory ECG application is in the diagnosis and assessment of cardiac arrhythmias or …
4. 心筋虚血および心筋梗塞の診断における心電図electrocardiogram in the diagnosis of myocardial ischemia and infarction [show details]
…or more standard 12-lead electrocardiograms (ECGs). Most patients who are ultimately diagnosed with myocardial infarction have some new abnormality seen on one or more serial ECGs performed around the time …
5. 心筋梗塞または不安定狭心症の予後における心電図electrocardiogram in the prognosis of myocardial infarction or unstable angina [show details]
…underlying abnormalities . The ECG also provides information on prognosis. The use of the ECG for prognosis in myocardial infarction or unstable angina will be reviewed here. Use of the ECG for diagnosis is discussed …

English Journal

Impaired dynamic cerebral autoregulation in trained breath-hold divers.

Moir ME, Klassen SA, Al-Khazraji BK, Woehrle E, Smith SO, Matushewski BJ, Kozić D, Dujić Ž, Barak OF, Shoemaker JK.
Journal of applied physiology (Bethesda, Md. : 1985). 2019 May;().
Breath-hold divers (BHD) experience repeated bouts of severe hypoxia and hypercapnia with large increases in blood pressure. However, the impact of long-term breath-hold diving on cerebrovascular control remains poorly understood. The ability of cerebral blood vessels to respond rapidly to changes i
PMID 31070952

Cirrhotic cardiomyopathy: The interplay between liver and cardiac muscle. How does the cardiovascular system react when the liver is diseased?

Dourakis SP, Geladari E, Geladari C, Vallianou N.
Current cardiology reviews. 2019 May;().
It is widely known that liver cirrhosis, regardless of the etiologies is accompanied by severe hemodynamic changes. The principal pathophysiological mechanisms are the hyper-dynamic circulation with increased cardiac output, heart rate along with reduced systemic vascular resistance. Thus, counterac
PMID 31072296

Localization of Activation Origin on Patient-Specific Epicardial Surface by Empirical Bayesian Method.

Zhou S, Sapp JL, Dawoud F, Horacek BM.
IEEE transactions on bio-medical engineering. 2019 May;66(5)1380-1389.
Ablation treatment of ventricular arrhythmias can be facilitated by pre-procedure planning aided by electrocardiographic inverse solution, which can help to localize the origin of arrhythmia. Our aim was to improve localization accuracy of the inverse solution by using a novel Bayesian approach. The
PMID 30281434

Japanese Journal

Accurate heartbeat monitoring using ultra-wideband radar

Sakamoto Takuya,Imasaka Ryohei,Taki Hirofumi,Sato Toru,Yoshioka Mototaka,Inoue Kenichi,Fukuda Takeshi,Sakai Hiroyuki
IEICE Electronics Express 12(3), 20141197-20141197, 2015
… Our ultra-wideband radar system has a moderate fractional bandwidth intermediate of these systems, resulting in both the suppression of clutters and high sensitivity in measuring accurate heart rates even in a dynamic environment. … A simultaneous measurement of the vital signal of a participant employing the ultra-wideband radar and electrocardiography reveals the high accuracy of the radar system in measuring the heart rate varying over time. …
NAID 130004939947

Blood Pressure and Sympathetic Nerve Tone Relation during Hemodialysis may Reflect Cardiovascular Dysfunction

Ino-Oka Eiji,Urae Jyun,Sekino Makoto,Satoh Masatsugu,Takeuchi Kazuhisa,Sekino Hiroshi,Ohtaki Yasuaki,Inooka Hikaru
Internal Medicine 50(22), 2741-2748, 2011
… We analyzed the changes in blood pressure and sympathetic nerve tone and attempted to clarify whether the dynamic pattern of this relationship reflects cardiovascular dysfunction.<br> …
NAID 130001288661

ヒト心臓壁振動の超音波計測による電気的興奮に対する心筋応答の伝搬の可視化

金井浩
電子情報通信学会技術研究報告. EA, 応用音響 110(171), 69-73, 2010-08-02
我々は通常の超音波エコー装置を用いて,反射超音波の位相を巧みに用い,心臓の各部分の微小振動を速度波形として計測できる手法を開発した.本手法では,時間分解能を2ms,空間分解能を1m以下まで向上させ,従来の診断装置にはない高精度な計測を可能にした.この計測方法を心筋に適用したところ,心電図R波前後において,心筋で発生した微小振動が伝搬する現象を見出した.また,駆出期には,心筋の収縮は,短軸面の円周方 …
NAID 110007970008