AI Summary & Key Takeaways
AI InsightThe correlation coefficient of MRI was higherthan that of US (0.927 and 0.687, respectively).Conclusion: MRI is superior to US in preoperative tumor size evaluation of patients receiving NAC.
📌 3 Key Takeaways
Abstract
Objective: Magnetic resonance imaging (MRI) and ultrasonography (US) are commonly used in the pre-surgery determination of tumor sizeand the follow-up of breast cancer patients treated with neoadjuvant chemotherapy (NAC). The aim of this study was to compare the efficiency ofpreoperative MRI and US in tumor size evaluation of patients with breast cancer after NAC to guide clinicians on the appropriate treatment plan.Materials and Methods: The study included a total of 75 patients who had undergone radiological follow-up, surgical treatment and pathologicalexamination in our hospital between 2013 and 2016. Of these, 28 patients were followed-up with MRI and 47 with US. The dimension evaluationsin pathology examination and on both MRI and US were based on the longest dimension of the tumor.Results: There was no statistically significant difference between the tumor size measured pathologically and the size measured preoperatively onMRI (p=0.379). The tumor size measured on US before surgery was significantly smaller than the size measured in pathology (p=0.004). MRI didnot overestimate by more than 10 mm in any patient, whereas US overestimated in 4 patients (8.6%). The correlation coefficient of MRI was higherthan that of US (0.927 and 0.687, respectively).Conclusion: MRI is superior to US in preoperative tumor size evaluation of patients receiving NAC.