| 摘要 |
A method and apparatus for treating cardiac arrhythmias comprising an instrument for mapping ventricular tachycardia, is disclosed. The method is for ablating a portion of an organ or bodily structure of a patient, which comprises obtaining a perspective image of the organ or structure to be mapped; advancing one or more catheters having distal tips to sites adjacent to or within the organ or structure; sensing the location of each catheter's distal tip using a non-ionizing field; at the distal tip of the catheters, sensing local information of the organ or structure; processing the sensed informati on to create one or mom data points; superimposing the data points on the perspective image of the organ or structure; and ablating a portion of the organ or structure. A catheter (51) is introduced into the heart chamber (52) in t he body of a patient. An antenna (101) is connected to a receiver (102), and th e antennas (103a, 103b, 103c) located at the body surface (57) are transmittin g antennas. The transmitter (105) transmits signals to the transmitting antenn as (103a, 103b, 103c). |
