数字减影血管造影术显示t 9左后侧脊髓支血供异常。
Digital subtraction angiography showed an abnormal blood supply from the posterior spinal branch of the left T9 artery.
而1990年以前由于伊斯坦堡尚无MRI，因此通过行脊髓造影术来排除其他脊髓疾病。
Before 1990, when MRI was not available in Istanbul, myelography was performed to rule out compressive cord lesions.
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