姿势对肾体积的影响：使用多姿势磁共振成像进行评估
Effect of posture on renal volume: evaluation using multi-posture MRI.
作者信息
Nakagawa Seiya, Miyati Tosiaki, Ohno Naoki, Kawano Koga, Oda Yuki, Kobayashi Satoshi
机构信息
Graduate School of Medical Sciences, Kanazawa University, 5-11-80, Kodatsuno, Kanazawa, Ishikawa, 920-0942, Japan.
Radiology Section, Medical Technology Division, Ishikawa Prefectural Central Hospital, 2-1, Kuratsuki Higashi, Kanazawa, Ishikawa, 920-08530, Japan.
出版信息
Radiol Phys Technol. 2025 Aug 18. doi: 10.1007/s12194-025-00952-9.
Measurement of renal volume is useful in the early detection and monitoring of renal disease. However, changes in renal volume during postural changes are not clear. Therefore, this study used multi-posture MRI system that can obtain renal images in any posture to assess the effect of posture on renal volume in the supine and upright positions. This study included 11 healthy volunteers (8 men and 3 women; mean age, 23.1 years; body mass index, 19.9 ± 1.3 kg/m). Multi-posture MRI was used to compare renal volumes (total kidney, renal cortex, renal medulla, and renal pelvis volumes) between supine and upright positions. Wilcoxon signed-rank test was used. A P < 0.05 indicated significance. The total kidney, renal cortex, and renal medulla volumes in the upright position were significantly smaller than those in the supine position (P < 0.05 for all). Multi-posture MRI may provide new information on renal volume.
测量肾体积有助于早期发现和监测肾脏疾病。然而，体位改变时肾体积的变化尚不清楚。因此，本研究使用了可以在任何体位获取肾脏图像的多体位MRI系统，以评估仰卧位和直立位时体位对肾体积的影响。本研究纳入了11名健康志愿者（8名男性和3名女性；平均年龄23.1岁；体重指数19.9±1.3kg/m²）。采用多体位MRI比较仰卧位和直立位之间的肾体积（全肾、肾皮质、肾髓质和肾盂体积）。使用Wilcoxon符号秩检验。P<0.05表示有统计学意义。直立位时的全肾、肾皮质和肾髓质体积明显小于仰卧位（均P<0.05）。多体位MRI可能会提供有关肾体积的新信息。
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