Alanen A, Nummi P, Kormano M, Irjala K
Department of Diagnostic Radiology, Turku University Central Hospital, Finland.
Acta Radiol. 1987 Sep-Oct;28(5):601-2.
Relaxation times T1 of normal and abnormal urine samples were measured with a 0.02 tesla MRI device in a spectrometric mode. Protein containing urine from patients with glomerulonephritis showed a slight shortening of T1 relaxation time. Radiographic contrast medium, pH, osmolality or glucose in diabetes did not significantly change the T1 relaxation time of urine. Urine can be used as a T1 relaxation reference in MR imaging of the pelvis even if the patient has received radiographic contrast medium or has diabetes or proteinuria for any reason.
使用一台0.02特斯拉的MRI设备在光谱模式下测量正常和异常尿液样本的弛豫时间T1。患有肾小球肾炎患者的含蛋白质尿液显示T1弛豫时间略有缩短。糖尿病患者尿液中的放射造影剂、pH值、渗透压或葡萄糖并未显著改变尿液的T1弛豫时间。即使患者因任何原因接受过放射造影剂或患有糖尿病或蛋白尿，尿液仍可作为骨盆磁共振成像中的T1弛豫参考物。
