The abnormal signals of neuroradiologic imaging predominantly showed symmetrical lesions in the posterior cerebral white matter bilaterally, and also involved the cortex.
神经影像学以双侧对称性大脑后部白质为主的异常信号，也可累及皮层。
2
Neuroradiologic studies in 1960s and 70s demonstrate the vertebral venous system by catheterization of the ascending lumbar vein and femoral vein, to diagnose the herniated lumbar intervertebral disc.