| 摘要 |
FIELD: medicine.SUBSTANCE: group of inventions refers to medicine, namely to a therapeutic system and a method of monitoring of thermal exposure on a body tissue. The system comprises a MR-visualisation unit configured to read out the MR-signals from the patient's body found in the examined region. Also, the system comprises a thermal exposure unit for localising thermal energy inside the body tissue. A system implements a method of monitoring consisting in the initial thermal exposure by heating the body tissue within a focus to the extent of the examination. Further, the MR-signals are selectively read out from the first image plane with a focus of the thermal exposure found within the first image plane. That is followed by restoring a topographic MR image from the MR signals collected from the first image plane. A basic thermographic MR-image is derived from the thermal distribution within at least one second image different from the first image plane. Thereafter, the focus of the thermal exposure is moved to a new place within the extent of the examination; the first image plane is positioned and/or directed in accordance with the new position of the focus of the thermal exposure.EFFECT: using the invention provides continuous monitoring of temperature within the MR-thermometry based process, even in the situation when the focus of the thermal exposure moves.10 cl, 6 dwg |
