论文部分内容阅读
Objective:We performed a retrospective study to establish the optimalradiological criteria for axillary lymph node metastases from breast cancer by measuringall dissected nodes,and to determine whether magnetic resonance imaging(MRI)couldreliably reveal axillary involvement.Methods:Pathological findings and MRI scans of 202patients with invasive breast cancer were reviewed.The long-and short-axis dimensions ofall level Ⅰ and Ⅱ lymph nodes were measured microscopically,and then the long-to-shortaxis(L/S)ratio of each node was calculated.These parameters were compared withpathological nodal status to define radiological criteria for axillary involvement.MRI wascarried iut using T1-weighted spin-eho sequences in the coronal and sagittal planes.OnMRI,every detected lymph node was measured and the shape of the nodal cortex was alsoexamined.Then the diagnostic ability of MRI was assessed using these morphologic criteri-a.Results:On histopathological examinations of 4043 dissected lymph nodes,a long-axisdime
Objective: We performed a retrospective study to establish the optimalradiological criteria for axillary lymph node metastases from breast cancer by measuring all dissected nodes, and to determine whether magnetic resonance imaging (MRI)couldreliably reveal axillary involvement.Methods:Pathological findings and MRI scans of 202patients with The long-and short-axis dimensions were all. Nodal status to define radiological criteria for axillary involvement.MRI wascarried iut using T1-weighted spin-eho sequences in the coronal and sagittal planes.OnMRI,every detected lymph node was measured and the shape of the nodal cortex was alsoexamined.Then the the diagnostic ability Of MRI was assessed using these morphologic criteri-a.Results:On histopathological examinations of 4043 dissected lymph n Odes,a long-axisdime