![]() ![]() Multiple round masses like the ones shown below are suspicious for metastases and would require further evaluation. These often enhance less than the liver tissue but do not appear as dark as a cyst. Seeing this progression helps to confirm the diagnosis. These are also benign and relatively common in the liver.įor hemangiomas in the arterial phase, the enhancement starts as small nodular areas along the outside of the mass that grow and fill in toward the middle during the portal venous phase. In contrast to a cyst, a hemangioma has internal enhancement that will fill in over time. Patients may have only a few cysts or they can have many, as shown here. These benign lesions will appear darker than the surrounding liver tissue and will have a smooth, thin, or imperceptible wall. When evaluating the liver for different types of masses, there are three types to look for: Cirrhotic livers often have a nodular, bumpy surface.Ĭirrhosis can also present with more subtle nodularity of the liver surface but will often give other hints of the diagnosis, including widening of the fissure and enlargement of the left and caudate lobes. Fatty liver (i.e., steatosis) will appear less bright than normal liver tissue due to fat infiltration throughout the organ. The most common variations that you will encounter are fatty liver and cirrhosis. The normal liver tissue has a smooth contour and uniform enhancement. The portal venous phase provides the best balance of solid organ and vascular enhancement for general imaging, and it is the most common type of computed tomography (CT) performed This way, you can make sure to look at all of the important structures and you can reinforce your search pattern. The polygon edges.When reviewing the solid organs, use a checklist approach and move systematically through the anatomy. Hatching is supported in the PostScript, PDF, SVG and AggĬontourf differs from the MATLAB version in that it does not draw My ultrasound came back as smooth contour of liver surface, all organs normal except for gallstones. If None, no hatching will be added to the contour. Medical Have medical questions Ask a doctor online Ask an Expert Medical Questions This answer was rated: My ultrasound came back as smooth contour of liver surface, all organs normal except for gallstones. hatches : List, optionalĪ list of cross hatch patterns to use on the filled areas. ![]() Iterable is shorter than the number of contour levels Specifying a set of linestyles to be used. Linestyles can also be an iterable of the above strings ![]() ![]() Linestyle from rcParams = 'dashed' setting. In that case, negative contours will take their Learn more about how the Smooth Line and Smooth Polygon tools work. If linestyles is None, the default is 'solid' unless the linesĪre monochrome. Smooths sharp angles in lines to improve aesthetic or cartographic quality. The Normalize instance, overriding the default color scalingīased on levels. If not None, either or both of these values will be supplied to If not given, the default linear scaling is used. Values to the canonical colormap range for mapping toĬolors. If a colormap is used, the Normalize instance scales the level If both colors and cmap are given, an error is raised. The colormapĭefaults to rcParams = 'viridis'. cmap : str or Colormap, optionalĪ Colormap instance or registered colormap name. The alpha blending value, between 0 (transparent) and 1 (opaque). This shortcut does only work forĬolor strings, not for other ways of specifying colors.īy default (value None), the colormap specified by cmap 'red' instead of to colorĪll levels with the same color. Sequence is shorter than the number of levels, it's repeated.Īs a shortcut, single color strings may be used in place of The sequence is cycled for the levels in ascending order. To define CCSM constraints, the most significant morphology feature points in the shape were extracted from the initial contour to form a target contour by. colors : color string or sequence of colors, optional Nearest those points are always masked out, other triangularĬorners comprising three unmasked points are contoured as usual.ĭefaults to rcParams = True, which defaults to True. If True, only the triangular corners of quads If False, any quad touching a masked point is If array-like, draw contour lines at the specified levels.Įnable/disable corner masking, which only has an effect if Z isĪ masked array. The level heights are automatically chosen. levels : int or array-like, optionalĭetermines the number and positions of the contour lines / regions. The height values over which the contour is drawn. If not given, they are assumed to be integer indices, i.e. That len(X) = M is the number of columns in Z and X and Y must both be 2-D with the same shape as Z (e.g.Ĭreated via shgrid), or they must both be 1-D such Except as noted, function signatures and return valuesĪre the same for both versions. Contour ( Z, , ** kwargs )Ĭontour and contourf draw contour lines and filled contours, ![]()
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