scholarly journals Mechanism of idiopathic ventricular tachycardia originated at the outflow tract of right ventricle-aspect from AA interval frequency-domain analysis.

1996 ◽  
Vol 16 (1) ◽  
pp. 49-58
Author(s):  
Akihiko Shimizu ◽  
Tomoko Hayano ◽  
Eiwa Zen ◽  
Masahiro Esato ◽  
Takunori Hamamoto ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Right Ventricle ◽  
Frequency Domain ◽  
Domain Analysis ◽  
Frequency Domain Analysis ◽  
Outflow Tract ◽  
Idiopathic Ventricular Tachycardia

Successful ablation of incessant idiopathic right ventricular tachycardia arising from unusual sites in children

2015 ◽  
Vol 26 (4) ◽  
pp. 764-771 ◽  
Author(s):  
Lin Wu ◽  
Hong Tian ◽  
Feng Wang ◽  
Xuecun Liang ◽  
Gang Chen
Keyword(s):  
Ventricular Tachycardia ◽  
Catheter Ablation ◽  
Right Ventricle ◽  
Right Ventricular ◽  
Case Series ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Idiopathic Ventricular Tachycardia ◽  
Successful Ablation ◽  
The Right

AbstractObjectiveMost idiopathic right ventricular tachycardias originate from the outflow tract. We present a case series of idiopathic incessant ventricular tachycardia arising from unusual sites of the right ventricle in children, which were well resolved by catheter ablation.MethodsA retrospective review was performed of all three patients who underwent ablation of idiopathic ventricular tachycardia below the level of the right ventricular outflow tract using three-dimensional mapping in our institute.ResultAll three patients presented with tachycardia-induced cardiomyopathy due to incessant ventricular tachycardia on first admission. The sites of successful ablation were at the proximal right bundle branch, distal right bundle branch, and apex of the right ventricle, respectively. No complications occurred, and there has been no recurrence of ventricular tachycardia after the final ablation at an average follow-up period of 9 months. All three patients have achieved normalisation of left ventricular size and systolic function.ConclusionIncessant idiopathic ventricular tachycardia originating from unusual sites of the right ventricle in children, resulting in significant symptoms and impaired ventricular function, can be successfully treated with catheter ablation.

Time- Versus Frequency-Domain Analysis in Predicting Cycle Length of Inducible Ventricular Tachycardia After Myocardial Infarction

1996 ◽  
Vol 19 (3) ◽  
pp. 314-324 ◽  
Author(s):  
AKIHIKO NOGAMI ◽  
YOSHITO IESAKA ◽  
YASUTERU YAMAUCHI ◽  
MASAHIKO GOYA ◽  
ATSUSHI TAKAHASHI ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Ventricular Tachycardia ◽  
Frequency Domain ◽  
Cycle Length ◽  
Domain Analysis ◽  
Frequency Domain Analysis

scholarly journals Analysis of Three-Phase Wye-Delta Connected LLC

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3606
Author(s):  
Jing-Yuan Lin ◽  
Chuan-Ting Chen ◽  
Kuan-Hung Chen ◽  
Yi-Feng Lin
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Operation Time ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Frequency Domain Analysis ◽  
Complete Analysis ◽  
Plane Analysis ◽  
Analysis Methods ◽  
Three Phase

Three-phase wye–delta LLC topology is suitable for voltage step down and high output current, and has been used in the industry for some time, e.g., for server power and EV charger. However, no comprehensive circuit analysis has been performed for three-phase wye–delta LLC. This paper provides complete analysis methods for three-phase wye–delta LLC. The analysis methods include circuit operation, time domain analysis, frequency domain analysis, and state–plane analysis. Circuit operation helps determine the circuit composition and operation sequence. Time domain analysis helps understand the detail operation, equivalent circuit model, and circuit equation. Frequency domain analysis helps obtain the curve of the transfer function and assists in circuit design. State–plane analysis is used for optimal trajectory control (OTC). These analyses not only can calculate the voltage/current stress, but can also help design three-phase wye-delta connected LLC and provide the OTC control reference. In addition, this paper uses PSIM simulation to verify the correctness of analysis. At the end, a 5-kW three-phase wye–delta LLC prototype is realized. The specification of the prototype is a DC input voltage of 380 V and output voltage/current of 48 V/105 A. The peak efficiency is 96.57%.

scholarly journals Amplitude Design of Perturbation Signal in Frequency-Domain Analysis of Grid-Connected Systems

2020 ◽  
Vol 53 (2) ◽  
pp. 13161-13166
Author(s):  
Henrik Alenius ◽  
Roni Luhtala ◽  
Tomi Roinila
Keyword(s):  
Frequency Domain ◽  
Domain Analysis ◽  
Frequency Domain Analysis
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