CAJ | 학술논문

目的：评价术前磁共振成像(MRI)对乳腺癌保乳术切缘阳性率的影响。方法收集乳腺癌患者64例为研究组，历史对照组73例乳腺癌患者，所有患者经常规检查及评估后均适合行保乳术。研究组患者术前行乳腺 MRI 检查，经评估后确定最终的手术计划。历史对照组未行 MRI 检查。比较2组患者的切缘阳性率差异，记录研究组的手术变更率。结果与对照组相比，研究组保乳术中的切缘阳性率降低(9.6% vs 24.7%；P =0.04)。术前 MRI 使18.8%的患者改变手术计划而行乳房全切术。结论术前乳腺 MRI 检查能更准确评估乳腺癌病灶的范围，从而有助于降低保乳术患者的术中切缘阳性率。
목적：평개술전자공진성상(MRI)대유선암보유술절연양성솔적영향。방법수집유선암환자64례위연구조，역사대조조73례유선암환자，소유환자경상규검사급평고후균괄합행보유술。연구조환자술전행유선 MRI 검사，경평고후학정최종적수술계화。역사대조조미행 MRI 검사。비교2조환자적절연양성솔차이，기록연구조적수술변경솔。결과여대조조상비，연구조보유술중적절연양성솔강저(9.6% vs 24.7%；P =0.04)。술전 MRI 사18.8%적환자개변수술계화이행유방전절술。결론술전유선 MRI 검사능경준학평고유선암병조적범위，종이유조우강저보유술환자적술중절연양성솔。
Objective To evaluate the influence of preoperative MRI on tumor-positive rate of resection margins in breast cancer patients eligible for breast-conserving surgery.Methods Study group consisted of 64 consecutive patients with breast cancer eligible for breast-conserving surgery,while 73 cases as history control group.For the two groups,a first plan for breast-conserving surgery was made on the basis of conventional imaging and clinical evaluation.Study group underwent preoperative breast MRI and re-evalu-ated before final surgical plan was made.Rates of tumor-positive resection margins were compared between the 2 groups.Surgical plan alteration was recorded in the study group.Results Study group had lower rate of tumor-positive resection margin compared with control group (9.6% vs 24.7%,P =0.04).Furthermore,18.8% of study group altered the finial surgical plan to mastectomy after breast MRI.Conclusion Preoperative breast MRI can more acurately evaluate the extent of breast cancer,therefore decrease rate of tumor-positive resection margin in breast cancer patients eligible for breast-conserving surgery.