Notice the altered pattern of contrast flow.
Degree and pattern of contrast enhancement are variable [34].
d Sagittal T1-weighted image post gadolinium shows the characteristic swirling pattern of contrast enhancement, typical of aggressive angiomyxoma (arrow).
Careful interpretation of power injector graphs, location of region of interest to trigger the scan, and pattern of contrast flow can help determine the cause.
Characteristics consistent with suspected hepatic metastases on CT were hypo- or hyperattenuating hepatic masses with irregular delineation and/or pathologic pattern of contrast enhancement.
In this case we see an altered pattern of contrast flow: first SVC, followed by minimal opacification of the pulmonary artery and ascending aorta, dense opacification of the descending aorta followed by dense opacification of the ascending aorta.
The MR findings of 46 SLSTT were registered for the following data: area, location within the subcutaneous compartment, dimensions, shape and delineation, signal intensity (SI) on different pulse sequences, signal homogeneity, degree and pattern of contrast enhancement.
The pattern of contrast sensitivity loss shown by the patients with XLRS could be simulated in control observers by testing at a parafoveal locus, although by optical coherence tomography, none of the patients with XLRS had eccentric fixation.
To explain this apparent contradiction between studies, we must consider the limitations of texture analysis, which include that biologic correlates of texture analysis have not been definitively confirmed in histological studies and that image acquisition parameters and analysis (unenhanced vs contrast-enhanced exam, pattern of contrast administration, texture methods, software platforms, etc).
The left side of the head is dark gray, while the right side exhibits a complex pattern of contrasting light and dark markings.
