Title :
A high-speed optical mapping system to record cardiac action potential
Author :
Mishima, Akira ; Arafune, Tatsuhiko ; Masamune, Ken ; Sakuma, Ichiro ; Yahagi, Naoki ; Tsuji, Takayuki ; Dohi, Takeyoshi ; Shibata, Nitaro ; Yamamoto, Mitsuru ; Niwa, Ryoko ; Honjo, Haruo ; Kodama, Itsuo
Author_Institution :
Dept. of Precision Machinery Eng., Tokyo Univ., Japan
Abstract :
Reentry is irregular, abnormal electrophysiological activity of a heart and is thought of major cause of electrical instability leading to cardiac sudden death. A new digital video imaging system was developed and its performance was evaluated to analyze the spiral wave dynamics during polymorphic ventricular tachycardia with high spatio-temporal resolution (1 ms, 0.1 mm)
Keywords :
bioelectric potentials; cardiology; medical image processing; video signal processing; cardiac action potential recording; cardiac sudden death; digital video imaging system; electrical instability; high spatiotemporal resolution; high-speed optical mapping system; irregular abnormal electrophysiological activity; membrane potentials; polymorphic ventricular tachycardia; reentry; spiral wave dynamics; Electrophysiology; Heart; High speed optical techniques; High-resolution imaging; Image analysis; Image resolution; Optical imaging; Optical recording; Performance analysis; Spirals;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.897972
