HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Honda, O. Articles by Kudo, M. Search for Related Content PubMed PubMed Citation Articles by Honda, O. Articles by Kudo, M. Social Bookmarking                      What's this?

High-Resolution CT Using Multidetector CT Equipment

Evaluation of Image Quality in 11 Cadaveric Lungs and a Phantom

¹ Department of Radiology, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
² General Electric Yokogawa Medical Systems, 4-7-127 Asahigaoka, Hino, Tokyo, 191-0065, Japan.

OBJECTIVE. The aim of this study was to evaluate the image quality and diagnostic efficacy of multidetector high-resolution CT (HRCT) by comparing it with single-detector HRCT and by comparing the noise and artifact of multidetector HRCT images with a phantom.

SUBJECTS AND METHODS. Multidetector HRCT with six parameters and single-detector HRCT were performed on cadaveric lungs. The image quality and diagnostic efficacy of multidetector HRCT were evaluated in comparison with those of single-detector HRCT. A phantom was scanned, and image artifact and noise were investigated.

RESULTS. The image quality of multidetector HRCT with axial 1.25 mm x 4i (four images per gantry rotation) mode was equal to that of single-detector HRCT. The image quality of multidetector HRCT with other modes was worse than that on single-detector HRCT. The diagnostic efficacy of multidetector HRCT with high-quality mode (pitch, 3:1) and axial mode was equal to that of single-detector HRCT. The diagnostic efficacy on multidetector HRCT with high-speed mode (pitch, 6:1) was worse than that on single-detector HRCT. In the phantom study, images made in high-speed mode had strong artifacts. Noise in the axial mode was milder than that in high-speed mode but more severe than that in high-quality mode.

CONCLUSION. The image quality of axial HRCT with multidetector CT is equal to that on single-detector HRCT. Axial HRCT with multidetector CT is appropriate for evaluating subtle lung abnormalities, but high-speed mode is unsuitable. Using the high-quality mode degrades image quality but is still worthwhile.

CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?

This article has been cited by other articles:

				E J CHOI, Y-W OH, S Y HAM, K Y LEE, and E-Y KANG Comparison between coronal reformatted images and direct coronal CT images of the swine lung specimen: assessment of image quality with 64-detector row CT Br. J. Radiol., June 1, 2008; 81(966): 463 - 467. [Abstract] [Full Text] [PDF]

				J. D. Dodd, C. A. Souza, and N. L. Muller High-resolution MDCT of pulmonary septic embolism: evaluation of the feeding vessel sign. Am. J. Roentgenol., September 1, 2006; 187(3): 623 - 629. [Abstract] [Full Text] [PDF]

				J. D. Dodd, C. A. Souza, and N. L. Muller Conventional high-resolution CT versus helical high-resolution MDCT in the detection of bronchiectasis. Am. J. Roentgenol., August 1, 2006; 187(2): 414 - 420. [Abstract] [Full Text] [PDF]

				C. Beigelman-Aubry, C. Hill, A. Guibal, J. Savatovsky, and P. A. Grenier Multi-Detector Row CT and Postprocessing Techniques in the Assessment of Diffuse Lung Disease RadioGraphics, November 1, 2005; 25(6): 1639 - 1652. [Abstract] [Full Text] [PDF]

				U. Studler, T. Gluecker, G. Bongartz, J. Roth, and W. Steinbrich Image Quality from High-Resolution CT of the Lung: Comparison of Axial Scans and of Sections Reconstructed from Volumetric Data Acquired Using MDCT Am. J. Roentgenol., September 1, 2005; 185(3): 602 - 607. [Abstract] [Full Text] [PDF]

				D. A. Leswick, S. T. Webster, B. A. Wilcox, and D. A. Fladeland Radiation Cost of Helical High-Resolution Chest CT Am. J. Roentgenol., March 1, 2005; 184(3): 742 - 745. [Abstract] [Full Text] [PDF]

				E. Coche, F. Verschuren, A. Keyeux, P. Goffette, L. Goncette, P. Hainaut, F. Hammer, E. Lavenne, F. Zech, P. Meert, et al. Diagnosis of Acute Pulmonary Embolism in Outpatients: Comparison of Thin-Collimation Multi-Detector Row Spiral CT and Planar Ventilation-Perfusion Scintigraphy Radiology, December 1, 2003; 229(3): 757 - 765. [Abstract] [Full Text] [PDF]

				O. Honda, T. Johkoh, S. Yamamoto, M. Koyama, N. Tomiyama, T. Kozuka, S. Hamada, N. Mihara, H. Nakamura, and N. L. Muller Comparison of Quality of Multiplanar Reconstructions and Direct Coronal Multidetector CT Scans of the Lung Am. J. Roentgenol., October 1, 2002; 179(4): 875 - 879. [Abstract] [Full Text] [PDF]