الفهرس | Only 14 pages are availabe for public view |
Abstract This thesis included the study of the role of magnetic resonance imaging (MRI) examination in the detection and characterization of malignant tumors of the breast. The review of literature enclosed the anatomical background of the breast as well as the pathologic bases of the benign and malignant breast tumors. The indications of MRl examination of the breast and the MRl appearance of malignant breast tumors were also revised. The practical work included the MRl examination of20 cases, presenting with breast lesions suspicious for malignancy using double breast coil. The examination protocol included the rapid dynamic imaging within the first ten minutes after I.V. injection of gadolinum contrast agent. The MRl examination was preceded by clinical evaluation of the cases as well as mammographic and sonographic examination. The results of this study showed the value ofMRl in increasing detectability of malignant breast lesions especially in cases of mammographically dense breasts and recurrent breast tumors as well as the detection of multicentrcity and breast tumors located near the chest wall. The thesis showed also the value of delayed imaging after gadolinium injection in differentiation between benign and malignant breast tumors on the basis of different morphological and quantitative signs. |