Department of Neurosurgery of Beijing Tiantan Hospital, Capital Medical University, No.6, Tiantan Xili, Dongcheng District, 100050, Beijing, China,
Neurosurg Rev. 2014 Jan;37(1):147-52. doi: 10.1007/s10143-013-0497-3. Epub 2013 Sep 13.
The authors describe a method of using the C7-T3 spinous processes visualized on MRI as landmarks for localizing thoracic spinal lesions in 19 cases. This method included six steps. First, the "spinous process nearest to the lesion that was visible on the MRI image" was identified. Second, a dashed line was drawn on the image through the tip of the identified spinous process perpendicular to the skin surface. Third, two additional dashed lines parallel to the first dashed line were drawn from the upper and lower margins of the lesion. Fourth, the distances between the identified process and the two additional dashed lines were measured. Fifth, the same "spinous process nearest to the lesion" was identified by palpation and marked on the patient's skin. Sixth, the upper and lower margins of the lesion were marked on the skin according to the two distances measured in step 4. After the lesion was exposed, the deviations of the lesion margins were measured. All 19 cases of the thoracic spinal lesions were localized correctly using the C7-T3 spinous processes visualized on the MRI images as landmarks without any other evaluation methods. The deviation value for the localization of the tumor margin was 4.1 ± 1.47 mm. Using the C7-T3 spinous processes as landmarks is an accurate, simple, and economic method for lesion localization during thoracic spinal surgery.
作者描述了一种在 19 例病例中使用 MRI 上可见的 C7-T3 棘突作为标记来定位胸段脊柱病变的方法。该方法包括六个步骤。首先，确定“MRI 图像上可见的最接近病变的棘突”。其次，在图像上通过所确定的棘突尖端画一条与皮肤表面垂直的虚线。再次，从病变的上下缘画两条与第一条虚线平行的虚线。第四，测量所确定的棘突与两条附加虚线之间的距离。第五，通过触诊识别并在患者皮肤上标记出与病变最接近的“相同棘突”。第六，根据步骤 4 中测量的两个距离，在皮肤上标记病变的上下缘。在暴露病变后，测量病变边缘的偏差。所有 19 例胸段脊柱病变均使用 MRI 图像上可见的 C7-T3 棘突作为标记物进行了正确定位，无需任何其他评估方法。肿瘤边缘定位的偏差值为 4.1±1.47mm。使用 C7-T3 棘突作为标记物是一种准确、简单、经济的胸段脊柱手术中病变定位方法。
