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The acute micro cerebral infarction phantom was created to evaluate the detectability of acute micro cerebral infarction and optimize scan conditions in magnetic resonance imaging (MRI) examinations. The creation of the brain parenchyma phantom requires a hot stirrer that can be heated and stirred simultaneously. However, few hospitals and facilities have hot stirrers. The aim of our study was to use a microwave oven instead of a hot stirrer for the creation of a brain parenchyma phantom. Five phantoms using a hot stirrer and five phantoms using a microwave oven were created. The phantom creation time, T 2 value, apparent diffusion coefficient (ADC) value, uniformity, and reproducibility of MR images were compared between the two creation methods. The phantom creation time, when using a microwave oven was 108±8 minutes, which was significantly shorter than that of 213± 48 minutes when using a hot stirrer. T 2 values, ADC values, uniformity, and reproducibility were not significantly different. Therefore, it is easier to create an acute micro cerebral infarction phantom using a microwave oven compared to a hot stirrer.

Creation of Brain Parenchymal Equivalent Phantom for Diffusion Weighted Image Using Microwave Oven: A Different Heating Method