Minor artifacts were field of view edge artifacts, lung boarder artifacts, small body contour artifacts, respiratory artifacts and trachea artifacts.
Reasons given for clinically unacceptable recordings included wavering baseline, sharply contoured artifacts especially in T5 and T6, excessive EKG artifacts, 60-Hz artifacts, bursts of diffuse artifacts, and muscle artifacts on all leads.
In short, the method initially delineates the outer contour of the artifacts in GroupOUTER by a previously published algorithm [22] based on the original level set segmentation algorithm by Chan and Vese [23].
a Non-gated axial CT image shows a 'dissection-like' motion artifact (arrow) on the contour of the aorta because of pulsatile motion of the aorta.
d Likelihood map for HCC, which shows HCC in the right lobe but misses the small lesion in the left lobe, due to artifacts along the liver contour.
Because image artifacts, by their nature, are inherently random with regard to the contour of the true bright zone, it is nearly impossible that image artifact could lead to a fingerprint match whereby all the nooks and crannies of 2 complex contours match without the conclusion that the 2 sets of images portray the same underlying pathology.
The normalized difference between the baseline PET and artifact-corrected PET was used to produce a contour map showing the percentage difference from baseline in each area of the image.
Pressure monitoring systems influence the contour of the displayed wave-forms and, on occasion, can introduce significant artifact in the pressure traces.
In those cases, pitch contour of the selected suffix is time-warped which sometimes caused artifacts in pitch contours.
At temperatures above −35°C, the contours of the anterior segments appear slightly blurred due to a movement artifact that testifies to the vitality of the animal.
