Fat temperature measuring method and device

Abstract

The invention provides a fat temperature measuring method. The fat temperature measuring method comprises the following steps: detecting spinning-spinning relaxation time T2 of fat tissue based on aninterval scanning three-echo steady state iTESS sequence; and according to the corresponding relation between the fat temperature marked in advance and the spinning-spinning relaxation time T2 of thefat tissue, searching for the fat temperature corresponding to the detected spinning-spinning relaxation time T2. For the fat temperature measuring method realizing T2 detection based on the iTESS sequence, the pure constraint of the fat tissue is eliminated, rapid detection can be carried out, a radio-frequency pulse flip angle used by the sequence is small, and the problem that an SAR value exceeds the standard seldom occurs.

Description

technical field

[0001] The invention belongs to the field of fat temperature measurement, in particular to a method and device for measuring fat temperature. Background technique

[0002] High-intensity focused ultrasound (HIFU) can use the penetration and energy deposition of ultrasound to focus low-energy ultrasound in vitro on target tissues at a specific depth, causing the temperature in the focal region to rise rapidly to 60°C, causing protein denaturation And tissue coagulation necrosis without damaging the surrounding normal tissue, HIFU therapy has gradually developed into an important tumor treatment method. Real-time monitoring of the temperature of the target tissue during HIFU treatment is the key to the success of the treatment.

[0003] Magnetic resonance imaging has become an important means of HIFU treatment monitoring due to its multi-directional stereoscopic imaging, unique temperature monitoring, and multiple tissue contrasts. The temperature monitoring ...

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