320-Row wide volume CT significantly reduces density heterogeneity observed in the descending aorta: Comparisons with 64-row helical CT
The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessmen...
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| Published in | Computerized medical imaging and graphics Vol. 38; no. 1; pp. 15 - 21 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
New York, NY
Elsevier Ltd
01.01.2014
Elsevier |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0895-6111 1879-0771 1879-0771 |
| DOI | 10.1016/j.compmedimag.2013.10.003 |
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| Abstract | The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessment, the heterogeneity was judged to be smaller on WV scans than on helical scans (p<0.0001). Mean changes in aortic density between two contiguous slices were 1.64HU (3.40%) on WV scans and 2.29HU (5.19%) on helical scans (p<0.0001). CT density of thoracic organs is more homogeneous and reliable on WV scans than on helical scans. |
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| AbstractList | The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessment, the heterogeneity was judged to be smaller on WV scans than on helical scans (p<0.0001). Mean changes in aortic density between two contiguous slices were 1.64HU (3.40%) on WV scans and 2.29HU (5.19%) on helical scans (p<0.0001). CT density of thoracic organs is more homogeneous and reliable on WV scans than on helical scans. The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessment, the heterogeneity was judged to be smaller on WV scans than on helical scans (p<0.0001). Mean changes in aortic density between two contiguous slices were 1.64 HU (3.40%) on WV scans and 2.29 HU (5.19%) on helical scans (p<0.0001). CT density of thoracic organs is more homogeneous and reliable on WV scans than on helical scans. The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessment, the heterogeneity was judged to be smaller on WV scans than on helical scans (p<0.0001). Mean changes in aortic density between two contiguous slices were 1.64 HU (3.40%) on WV scans and 2.29 HU (5.19%) on helical scans (p<0.0001). CT density of thoracic organs is more homogeneous and reliable on WV scans than on helical scans.The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessment, the heterogeneity was judged to be smaller on WV scans than on helical scans (p<0.0001). Mean changes in aortic density between two contiguous slices were 1.64 HU (3.40%) on WV scans and 2.29 HU (5.19%) on helical scans (p<0.0001). CT density of thoracic organs is more homogeneous and reliable on WV scans than on helical scans. Abstract The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV and 64-helical modes. Density heterogeneity of the descending aorta was evaluated quantitatively and qualitatively. At qualitative assessment, the heterogeneity was judged to be smaller on WV scans than on helical scans ( p < 0.0001). Mean changes in aortic density between two contiguous slices were 1.64 HU (3.40%) on WV scans and 2.29 HU (5.19%) on helical scans ( p < 0.0001). CT density of thoracic organs is more homogeneous and reliable on WV scans than on helical scans. |
| Author | Yamashiro, Tsuneo Miyara, Tetsuhiro Tanaka, Yuko Kamiya, Ayano Murayama, Sadayuki Honda, Osamu |
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| Cites_doi | 10.2214/ajr.175.5.1751361 10.1148/rg.246045065 10.1097/RCT.0b013e318260941a 10.3174/ajnr.A1971 10.1016/j.ejrad.2005.12.035 10.1007/s003300050403 10.1016/j.acra.2005.01.011 10.1148/radiol.2281020730 10.1016/j.ejrad.2010.05.014 10.2214/AJR.04.1335 10.1259/dmfr/14139527 10.1007/s00330-008-0937-6 10.2214/AJR.09.3673 10.1016/j.acra.2011.12.001 10.1097/RLI.0b013e3181f33b1d 10.1016/j.ejrad.2011.01.090 10.2214/AJR.07.2138 10.1148/radiol.2421052066 10.2214/ajr.182.4.1820979 |
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| Contributor | Sakamoto, Ryo Tanaka, Yuko Sugimura, Kazuro Ohno, Yoshiharu Nagatani, Yukihiro Kamiya, Hisashi Kamiya, Ayano Murayama, Sadayuki Tomiyama, Noriyuki Miyara, Tetsuhiro Yamashiro, Tsuneo Noma, Satoshi Honda, Osamu Koyama, Hisaonobu Murata, Kiyoshi Takenaka, Daisuke Matsuki, Mitsuru Moriya, Hiroshi Takahashi, Masashi Koyama, Mitsuhiro |
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| Copyright | 2013 Elsevier Ltd Elsevier Ltd 2015 INIST-CNRS Copyright © 2013 Elsevier Ltd. All rights reserved. |
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| Keywords | Wide volume scanning Aorta Computed tomography Artifact Helical scanning Heterogeneity Descending aorta Artefact Tridimensional image Thorax Computerized axial tomography Circulatory system |
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| Snippet | The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT using 320-WV... Abstract The aim of this study was to compare density heterogeneity on wide volume (WV) scans with that on helical CT scans. 22 subjects underwent chest CT... |
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| SubjectTerms | Adult Aged Aged, 80 and over Aorta Aortography - methods Biological and medical sciences Cardiovascular system Computed tomography Exact sciences and technology Female Helical scanning Humans Instruments, apparatus, components and techniques common to several branches of physics and astronomy Internal Medicine Investigative techniques, diagnostic techniques (general aspects) Lung Diseases - diagnostic imaging Male Medical sciences Middle Aged Multidetector Computed Tomography Other Physics Radiographic Image Enhancement - methods Radiographic Image Interpretation, Computer-Assisted - methods Radiography, Thoracic - methods Radionuclide investigations Reproducibility of Results Sensitivity and Specificity Wide volume scanning X- and γ-ray instruments and techniques Young Adult |
| Title | 320-Row wide volume CT significantly reduces density heterogeneity observed in the descending aorta: Comparisons with 64-row helical CT |
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