Medical Engineering Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Osaka Sangyo University, Daito, Osaka 574-8530, Japan.
Department of Orthopaedic Surgery, Shimada Hospital, 100-1 Kashiyama, Habikino, Osaka, Japan.
Curr Med Imaging. 2023;19(8):914-920. doi: 10.2174/1573405618666220907110157.
Color mapping using quantitative MRI (Magnetic Resonance Imaging) is now being reported in various medical fields to be useful in showing tissue conditions and morphological perspectives. Specifically, T2 mapping, as one of the color mapping has been used to describe cartilage conditions in orthopedics. However, for orthopedic physicians in outpatient clinics, the color mapping shows only the colors on the mapping to patients without explaining their numerical values.
Our study proposed an approach to measure T2 values based on the hue value converted from Red, Green, Blue information on the processed color map to address this issue. We evaluated the validity of our method with 25 subjects.
Our proposed method showed a good and high correlation coefficient (r = 0.9924, p < 0.0001), and the difference in the T2 values using dedicated software on the console of the MRI scanner and our method was small (its absolute value was approximately 1.5, p = 0.008).
Therefore, we consider the proposed method is an alternative approach to show the T2 value when the color mapping is available.
现在，在各种医学领域中，使用定量磁共振成像（MRI）进行颜色映射被报告为有用的，可以显示组织状况和形态学视角。具体来说，T2 映射作为颜色映射之一，已被用于描述矫形科中的软骨状况。然而，对于门诊的矫形科医生来说，颜色映射仅向患者显示映射上的颜色，而不解释其数值。
我们的研究提出了一种方法，基于从处理后的彩色图的红、绿、蓝信息转换的色调值来测量 T2 值，以解决这个问题。我们用 25 个对象评估了我们方法的有效性。
我们提出的方法显示了良好且高度的相关系数（r = 0.9924，p < 0.0001），并且我们的方法和 MRI 扫描仪控制台专用软件上的 T2 值之间的差异很小（其绝对值约为 1.5，p = 0.008）。
因此，当颜色映射可用时，我们认为所提出的方法是显示 T2 值的替代方法。
