By Shahid Hussain, Michael Sorrell
From the again Cover
This ebook, now in its moment version, presents a pragmatic method of liver MRI, with assurance of the main updated MR imaging sequences, general and variation anatomy, and various pathologic stipulations. It good points computer-generated drawings bearing on medical thoughts to the MRI findings, 2nd and 3D reconstructions, suitable and systematic (differential) diagnostic info, a variety of extra instances, contemporary literature references, and outlines of sufferer administration strategies. MRI findings are correlated to ultrasound, computed tomography, nuclear drugs tests, laboratory findings, and histopathology while appropriate.
The moment version has been significantly accelerated, with inclusion of greater than 50 additional determine pages. New details is gifted on quite a number themes, including:
MRI distinction media (chemical constitution, mode of uptake and excretion, and safety)
comparability of other liver MRI ways in accordance with the liver-specific and non-specific MRI distinction media
The Dixon-based series for liver fats and iron quantification
Pulse series diagrams of crucial liver MRI sequences
basic variation hepatic arterial and biliary tree anatomy
Enhancement styles of the commonest liver lesions
techniques that enhance presentation of the liver MRI findings, together with serial MRI to illustrate temporal alterations in addition to a variety of 3D surface-shaded renderings, greatest depth projections, and minimal depth projection
This booklet, development at the very winning first variation, will significantly gain all pros and inquisitive about imaging, prognosis, and therapy of focal and diffuse liver lesions, together with radiologists, gastroenterologists, hepatologists, surgeons, pathologists, MR physicists, radiology and different citizens, MR technologists, and clinical scholars.
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Extra resources for Liver MRI: Correlation with Other Imaging Modalities and Histopathology (2nd edition)
2004;51:35–45. 10 Dixon-Based Sequence: Technique and Applications 21 Fig. 1 Dixon-based sequence and the reconstructed images through the liver. (a) The drawing illustrates how a basic 3D modified Dixon sequence acquired in 15–20 s breath-hold time can routinely generate four images: water, in phase, opposed phase, and fat. In addition, the data also allows to calculate the fat fraction and T2* maps, respectively, to quantify liver fat and iron contents. (b–e) An example of four images generated from the Dixon sequence.
Hepatocellular Adenoma Liver Hemangioma Hepatocellular Carcinoma T2-weighted images, especially the heavily T2-weighted single-shot turbo spin echo (SSTSE), show the liver hemangiomas with moderately high signal intensity (hyperintense) that is slightly lower than the fluid. T1-weighted images show the liver hemangiomas with low signal intensity (hypointense). 1b). T2-weighted images show hepatocellular carcinoma (HCC) predominantly hyperintense with multiple sub-nodules varying in signal intensity.
This sequence is currently provided as a product by most vendors. Fat Fraction and T2* Maps In the clinical setting, a subjective assessment (mild, moderate, severe) of fat and iron deposition can be performed based on the in- and opposed-phase images, either from a dual gradient-echo or from a Dixon-based sequence. More accurate assessment of iron deposition can be performed based on either a multi-echo gradient-echo or Dixon- based methods by generating a T2* map. Dixon-based fat fraction maps are best suitable for an accurate assessment of liver fat quantification.
Liver MRI: Correlation with Other Imaging Modalities and Histopathology (2nd edition) by Shahid Hussain, Michael Sorrell