The system and the method of doing the tuning identification of internal of the patient making use of the blood circulation movement signal which is perceived are disclosed. As for method, as for the heart inner thigh it can include the step which verifies the type of phenomenon on the basis of step and the mechanical and electric activity signal which analyze the mechanical activity signal which is received from step and the sensor which perceive the mechanical measurable quantity of one or more making use of the sensor which is located to step and internal phenomenon of the heart is detected the step which receives the electric activity signal from the electrode which is categorized to the heart vicinity and, on the basis of the electric activity signal which is received. The sensor, as perceived the both of atrium activity and cardiac ventricle activity inside the heart, can have the single pressure sensor which is formed.感知された血行動態信号を用いて患者の体内の調律識別を行うシステムおよび方法が開示される。方法は、心臓内または心臓近くに位置する電極から電気的活動信号を受信するステップと、受信した電気的活動信号に基づいて心臓の事象を検出するステップと、体内に位置するセンサを用いて1つ以上の機械的測定値を感知するステップと、センサから受信した機械的活動信号を解析するステップと、機械的および電気的活動信号に基づいて事象の種類を確認するステップを含みうる。センサは、心臓内の心房活動および心室活動の両方を感知するように構成された単一の圧力センサを備えうる。