Kim Jeong-Ah, Son Eun Ju, Kim Eun-Kyung, Kim Min Jung, Kwak Jin Young, Jeong Joon
Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea.
J Comput Assist Tomogr. 2009 Nov-Dec;33(6):940-5. doi: 10.1097/RCT.0b013e3181a6b719.
The purposes of this study were to present magnetic resonance imaging (MRI) findings in patients with breast cancer soon after the excisional biopsy and before definitive surgery and to assess the diagnostic accuracy of MRI for prediction of residual cancer.
Breast MRI was performed on 51 patients with breast cancer diagnosed by excisional biopsy. The morphologic type of postexcisional site was categorized into regular thin rim enhancement (P1), peripheral nodular enhancement (P2), satellite nodule within 2 mm from the cavity margin (P3), and irregularly thickened wall enhancement (P4). Enhancement pattern was categorized into "washout," "plateau," and "progressive" enhancement. All patients underwent definitive surgery after MRI. Magnetic resonance imaging findings were correlated with the pathologic findings.
The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of MRI for prediction of residual cancer were 92.1%, 69.2%, 78.4%, 88.6%, 56.3%, respectively.
MRI is a sensitive method for prediction of residual cancer after excisional biopsy.
本研究旨在呈现乳腺癌患者在切除活检后、确定性手术前的磁共振成像（MRI）表现，并评估MRI对预测残留癌的诊断准确性。
对51例经切除活检确诊为乳腺癌的患者进行乳腺MRI检查。切除术后部位的形态学类型分为规则薄边缘强化（P1）、周边结节状强化（P2）、距腔边缘2mm内的卫星结节（P3）和不规则增厚壁强化（P4）。强化模式分为“廓清”、“平台”和“渐进性”强化。所有患者在MRI检查后均接受了确定性手术。将磁共振成像结果与病理结果进行相关性分析。
MRI预测残留癌的敏感性、特异性、准确性、阳性预测值和阴性预测值分别为92.1%、69.2%、78.4%、88.6%、56.3%。
MRI是预测切除活检后残留癌的一种敏感方法。
