Comparison of the Accuracy of MRI, Sonography and Mammography in Predicting the Pre Operative Breast Tumor Size Measurements
Journal Title: Journal of Medical Science And clinical Research - Year 2016, Vol 4, Issue 9
Abstract
Background: 70 patients with primary breast cancer who presented preoperatively in the New Life Hospital, Hyderabad from Jan 2016 to June 2016 were retrospectively analyzed. Accurate preoperative assessment of maximum tumor size was a significant step of clinical cancer staging that assisted in planning further patient managements. The commonly used radiological modalities to measure tumor size are mammography, Ultra Sonography (US), and MRI. To prospectively estimate the accuracy of mammography, Ultrasonography and Magnetic Resonance Imaging in preoperative assessment of local extent of breast cancer, we did a study which illustrated the purpose. Bilateral whole-breast Ultrasonography was performed with prior information about clinical and mammographic findings either prior to MR imaging or afterward. Methods: Data from 70 patients with primary breast cancer were analysed in a retrospective study. The results were divided into the groups “ductal carcinoma in situ (DCIS)”, invasive ductal carcinoma (IDC) + ductal carcinoma in situ (DCIS)”, “invasive ductal carcinoma (IDC)”, “invasive lobular carcinoma (ILC)” and “other tumours” (tubular, medullary, mucinous and papillary breast cancer). The largest tumour diameter was chosen as the sizing reference in each case. Data from the study was diagrammatically illustrated and study data was incorporated in table form to accurately differentiate between the modalities so as to come to conclusions. Result: Our study found that ultrasound produced significant underestimation of tumor size, particularly so when size of tumor is larger. Mammography also under estimates the size of the tumor as compared to histology. MRI gives most accurate size estimation. However, overall mean difference between mammography, Ultrasonography and MRI was not statistically significant. Conclusion: We state that all 3 modalities of imaging has a role in pre operative estimation of breast tumor. As depicted in our study, MRI has shown most accurate results. Abbreviations: DCIS: Ductal Carcinoma in Situ, IDC: Invasive Ductal carcinoma, ILC: Invasive Lobular carcinoma
Authors and Affiliations
Dr Mohammed Ameer Ali Khan Afrose
Keywords
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