▪ Gallbladder Anatomy The gallbladder is an ovoid cystic organ along the undersurface of the liver at the interlobar fissure, between the right and the left lobes of the liver. Although the size and shape of the gallbladder vary with…
▪ Introduction Diffuse liver processes range from incidental signal and/or enhancement derangements, such as steatosis or transient hepatic intensity differences (THIDs), to serious, and potentially end-stage parenchymal disorders, such as cirrhosis and Budd-Chiari Syndrome (BCS). Segmental, or geographic lesions typically…
▪ Introduction Magnetic resonance imaging (MRI) is the most comprehensive and definitive noninvasive modality for evaluating the liver. A combination of enhancement characteristics and exquisite tissue contrast allows for the characterization of liver lesions. Unique artifacts—such as susceptibility and chemical…
▪ Magnetic Resonance Imaging: What is the Objective? Magnetic resonance imaging (MRI) exploits the inherent magnetism of the protons that constitute the human body in a creative way—through manipulation with radiofrequency (Rf) energy in the presence of a strong magnetic…
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The Importance of Postprocessing and Data Analysis for Breast Diffusion Weighted Imaging The role of magnetic resonance imaging (MRI) in breast cancer diagnosis and management is evolving as a supplemental screening tool for high-risk populations. Nowadays, a myriad of magnetic…
Data Acquisition Essential Elements of Calibration (B 0 And B 1 ) Most breast diffusion scans are performed with fat suppression and an echo-planar imaging (EPI) readout. Both these elements have optimal performance with uniform B 0 (magnet) and B…
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As discussed in detail in earlier chapters of this book, diffusion-weighted imaging (DWI) is a powerful tool in the multiparametric assessment of breast lesions with magnetic reconace imaging (MRI) and can provide decisive information for initial detection and classification of…
Overview of Breast Diffusion-Weighted Imaging Standardization Efforts Given the rapid advances in diffusion-weighted imaging (DWI) technology and the multiple parameters influencing quality of breast DWI acquisition and analysis, harmonization of breast DWI protocols necessitates coherent standardization efforts by physicians, researchers,…