乳腺影像学英文版-瑞金医学影像学精品课.ppt

Breast Imaging Basic Course For Medical College Student WANG Deng-bin MD,Ph.D Dept. of Radiology,RuiJin Hospital Introduction “Breast cancer is one of the best studied human tumors, but it remains poorly understood” “ As in all medical endeavors, the practitioner should, whenever possible, use the results of scientific studies to guide clinical decision” Imaging Modalities X-ray Examination Mammograpy X-ray radiography (molybdenum X rays, rhodium X rays):MLO,CC,etc. Galactography --demonstrates the ducts and ductule or their abnormalities. USG Ultrasonography (ultrasound) B-mode US Doppler US CT Computed tomography plain scan, enhanced scan (iodine) MRI Magnetic Resonance Imaging high resolution for soft tissue different tissue, different signal enhanced scan The others Infrared thermal imaging Computer diaphanography imaging,etc. Imaging-Guided Percutaneous Biopsy supply specimens for pathologic examination Fine needle aspiration biopsy (FNAB) Needle core biopsy (NCB) Interventional Therapy Laser Radiofrequency Embolization and so on Accessory Breast Tissue The most common site is axilla Basic Imaging Signs of Breast Lesion Mass/Lump Calcification Thickening and retraction of regional skin Retraction of nipple Enlargement or abnormality of blood vessels Lymph nodes Enhanced manifestations Mass/Lump shape: round, oval, regular/irregular margin: clear or ambiguous, spiculation or smooth density or signal intensity: high/low/intermediate with or without calcification site: upper-outer quadrant breast, upper-inner quadrant breast, lower outer quadrant breast, lower-inner quadrant breast, nipple, central portion breast, axillary tail breast. Number: solitary or multiple Calcification Size: large or micro Shape: ring-like, nodular or salt-like, branching Distribution: scattered or clustered with or without mass benign / malignant Thickening and Retraction of Regional Skin Frequently found in malignant tumors Sometimes due to postsurgical scars. Retractio