2020 年 40 巻 4 号 p. 143-148
QIBA (Quantitative Imaging Biomarkers Alliance) and J-QIBA (Japan-QIBA) aim to standardize the quantitative values obtained from radiological images and use them in clinical trials and routine clinical practice. In this review, we will give an overview of QIBA and J-QIBA. We will also introduce technology development and clinical applications of rapid relaxometry techniques that quantify tissue relaxation times.