用于小动物磁共振显微镜研究的体温自动反馈控制。

Automated feedback control of body temperature for small animal studies with MR microscopy.

作者信息

Qiu H H, Cofer G P, Hedlund L W, Johnson G A

机构信息

Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA.

出版信息

IEEE Trans Biomed Eng. 1997 Nov;44(11):1107-13. doi: 10.1109/10.641338.

DOI:10.1109/10.641338

PMID:9353990

Abstract

A temperature control system consisting of a thermistor, signal processor, and computer algorithm was developed for magnetic resonance (MR) microscopy of small live animals. With control of body temperature within +/- 0.2 degree C of the set point, heart rate is stabilized and, in turn, repetition time (TR) during cardiac-gated studies is less variable. Thus, image quality and resolution are improved.

摘要

为小型活体动物的磁共振（MR）显微镜检查开发了一种由热敏电阻、信号处理器和计算机算法组成的温度控制系统。通过将体温控制在设定点的±0.2摄氏度范围内，心率得以稳定，进而心脏门控研究期间的重复时间（TR）变化更小。因此，图像质量和分辨率得到了提高。