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Utility of Magnetic Resonance Imaging in the Diagnosis of Breast Disease / 日本農村医学会雑誌
Journal of the Japanese Association of Rural Medicine ; : 125-129, 2001.
Article in Japanese | WPRIM | ID: wpr-373739
ABSTRACT
Magnetic resonance imaging (MRI) for diagnostic evaluation of the breast was performed in 61 patients who visted the Breast Clinic of our hospital and were suspected to have malignant tumors by physical examination and mammography between January and December 1999. In 58 patients undergoing histological diagnostic tests (8 with benignancy and 50 with breast cancer), we compared the imaging characteristics and the time-signal intensity curves acquired by dynamic imaging between benign and malignant lesions, and evaluated the usefulness of analyzing enhancement patterns on contrast MRI. Contrast MRI revealed strong tumor enhancement in all patients; the mean time required for the signal intensity to reach a peak was about 7 min in patients with benign tumors and about 2 min in those with breast cancer. Peripheral ring enhancement was observed in 40 of the 50 patients with breast cancer (80.0%), while such enhancement was not noted in any of the patients with benign tumors.<BR>Although diagnosis of breast disease by imaging has primarily relied on mammography and ultrasonography, the pattern of contrast enhancement on dynamic MRI also appears to be useful for determining the treatment method of breast tumors.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: Japanese Journal: Journal of the Japanese Association of Rural Medicine Year: 2001 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: Japanese Journal: Journal of the Japanese Association of Rural Medicine Year: 2001 Type: Article