Virtual CT intravascular endoscopy of the aorta: Pierced surface and floating shape thresholding artifacts

Authors
Neri, E Caramella, D Falaschi, F Sbragia, P Vignali, C Laiolo, E Viviani, A Bartolozzi, C
Citation
E. Neri et al., Virtual CT intravascular endoscopy of the aorta: Pierced surface and floating shape thresholding artifacts, RADIOLOGY, 212(1), 1999, pp. 276-279
Citations number
18
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment
Journal title
RADIOLOGY
ISSN journal
00338419 → ACNP
Volume
212
Issue
1
Year of publication
1999
Pages
276 - 279
Database
ISI
SICI code
0033-8419(199907)212:1<276:VCIEOT>2.0.ZU;2-A
Abstract
Two types of artifacts may appear in virtual computed tomographic endoscopi c views of the aorta rendered at different threshold levels: pierced surfac e and floating shape artifacts. A positive correlation was found between me an attenuation of the aorta and the threshold levels at which these artifac ts appeared. The correlation was statistically significant (0.71 less than or equal to r less than or equal to 0.86) for floating shape. An artifact-f ree threshold range can be predicted on the basis of aortic enhancement.