磁共振尿路成像技术的临床应用(附60例分析)

目的探讨磁共振尿路成像的检查技术及临床应用价值。方法采用快速自旋回波（ＦＳＥ）、重Ｔ２ＷＩ技术以及口服利尿剂、钆喷酸葡胺稀释液、腹部加压等方法对５５例病人和５例健康志愿者行磁共振尿路成像（ＭＲｕｒｏｇｒａｐｈｙ，ＭＲＵ）。结果检查６０例，ＭＲＵ＋ＭＲＩ阳性５６例，ＭＲＵ对尿路梗阻的显示，尤其对静脉尿路造影（ＩＶＵ）不能显影者效果良好，与常规ＭＲＩ结合在揭示病变和尿路梗阻之间的关系方面有独到之处。结论ＭＲＵ能显示尿路梗阻部位、程度，与ＭＲＩ结合能更清晰地诊断尿路梗阻的病因。ＭＲＵ将成为诊断泌尿系疾病的一种新型无创性影像学手段。

Clinical application of MR urography technique

Purpose To evaluate the application on MRU.Methods 55 patients and 5 healthy volunteers were examined by MRU, which was performed with heavily T 2 weighted fast spin echo sequence , oral administration of furosemide and Gd DTPA diluent and ureteral compression prior to imaging. Results 57 of the 60 cases were positive in MRU and MRI.MRU provided high resolution image in cases of urinary tract obstruction, especially in those who were not visualized by IVU and had originality in demonstrating the relation between the original disease and urinary tract obstruction combined with ordinary MRI. Conclusions MRU could in most obstructed cases demonstrate the site and extent of urinary tract obstruction and the causes of obstruction, especially in combination with MRI. MRU provides a new and safe urinary tract imaging technique.