Comparison of magnetic resonance imaging, multidetector row computed tomography, ultrasonography, and mammography for tumor extension of breast cancer

Breast Cancer Research and Treatment
Takayoshi UematsuYoshihiro Uchida

Abstract

Breast imaging modalities can assess the tumor extent and adequacy of excision, but there have been no reports comparing magnetic resonance (MR) imaging, multidetector row computed tomography (MDCT), ultrasonography (US) and mammography (MMG) for the tumor extent of breast cancer. We prospectively assessed the accuracy of MR imaging, MDCT, US and MMG for preoperative assessment of the tumor extent of breast cancer. Preoperative MR imaging, MDCT, US and MMG were performed for 210 breasts with breast cancer. The MR and MDCT images were independently interpreted by one of two radiologists with knowledge of the clinical and MMG findings. The US was performed with knowledge of the clinical and MMG findings by one of five US technologists. The correlation of the results of these examinations with histological findings was examined. Of the 210 index breast tumors, 210 (100%) could be detected on MR, 208 (99%) were detected on MDCT, 209 (99.5%) were detected on US, and 195 (93%) were detected on MMG. For evaluating local tumor extent, the accuracy of MR imaging (76%) was significantly higher than those of MDCT, US, and MMG (71%, 56%, and 52%, respectively) (P = 0.001, P < 0.0001, and P < 0.0001). MDCT was significantly more accurate th...Continue Reading

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