Abstract
AbstractWith the advancements in high‐speed imaging technology in MRI (magnetic resonance imaging), clinically useful images have become obtainable within a short time. On the other hand, internal body heating due to many radio‐frequency magnetic field pulses applied in a short time has become a problem. In efficient data acquisition while ensuring the safety of a test subject, monitoring its internal body temperature during data acquisition is desirable. In this paper, a method of measuring real‐time information regarding temperature changes during image data acquisition that incorporates a temperature measuring method using the temperature dependence (−0.01 ppm/°C) of the water proton chemical shift with a high‐speed imaging method is proposed. The efficacy of the proposed method is demonstrated by showing that it can measure temperature changes with an error of less than 0.5 °C in laboratory experiments using agar phantoms. © 2004 Wiley Periodicals, Inc. Syst Comp Jpn, 35(2): 49–58, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/scj.10376
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