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目的比较MRI与彩色多普勒超声诊断妊娠晚期出血的准确性,评价不同的MR成像序列诊断出血原因的准确性。方法运用MRI及超声检查对42例妊娠末3个月病人无痛性阴道流血的原因进行评价。采用的MRI序列有:半傅里叶采集单次激发快速自旋回波(HASTE)技术、磁共振稳态
Objective To compare the accuracy of MRI and color Doppler sonography in the diagnosis of third trimester hemorrhage and evaluate the accuracy of different MR imaging sequences in diagnosing the cause of hemorrhage. Methods The causes of painless vaginal bleeding in 42 patients at the third trimester of pregnancy were evaluated by MRI and ultrasonography. The MRI sequences used were: half-Fourier acquisition single-shot rapid spin echo (HASTE) technique, magnetic resonance homeostasis