Intra-cardiac scar tissue identification using impedance sensing and contact measurement

• Main Authors: OSADCHY DANIEL, BAR-TAL MEIR
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2019
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The disclosure relates to a system that includes an electrical interface and a processor. The electrical interface is configured for 5 communicating with a probe inserted into a heart of a patient. The processor is configured to receive, via the electrical interface, (i) a first indication of an electrical impedance measured by the probe at a given location on an inner surface of the heart, and (ii) a second 10 indication of a quality of mechanical contact between the probe and the inner surface of the heart during measurement of the electrical impedance. The processor is further configured, based on the first and second indications, to classify tissue at the given location as scar tissue. 本公开涉及一种系统，所述系统包括电接口和处理器。电接口被配置用于与插入患者的心脏中的探针进行通信。处理器被配置为经由该电接口接收(i)由探针在心脏的内表面上的给定位置处测量的电阻抗的第一指示，以及(ii)在测量该电阻抗期间在探针和心脏的内表面之间的机械接触的质量的第二指示。处理器被进一步配置为基于第一指示和第二指示将给定位置处的组织归类为疤痕组织。