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) All Versions of this Article: 2243010874v1 224/3/905    most recent Submit a response Alert me when this article is cited Alert me when eLetters are posted 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 Itoh, S. Articles by Ishigaki, T. Search for Related Content PubMed PubMed Citation Articles by Itoh, S. Articles by Ishigaki, T.

Lung: Feasibility of a Method for Changing Tube Current during Low-Dose Helical CT¹

¹ From the Departments of Technical Radiology (S. Itoh), Medical Information and Medical Records (M.I.), and Radiology (Y.M., K.S., A.S., S. Iwano, H.S., T. Ishigaki), Nagoya University School of Medicine, Tsumai-cho 65, Showa-ku, Nagoya 466-8560, Japan; Department of Radiology, Komaki City Hospital, Japan (S.A.); Department of Radiology, Hokushin General Hospital, Nakano, Japan (T. Isomura); and Toshiba, Tokyo, Japan (M.O.). Received May 1, 2001; revision requested June 16; final revision received February 14, 2002; accepted March 21. Address correspondence to S. Itoh (e-mail: shigeito@met.nagoya-u.ac.jp).

A method for changing the tube current during helical scanning was applied to low-dose computed tomography (CT) in the lung. The changing method resulted in significant equalization of image noise in various lung sections compared with that at scanning with constant tube current. Detectability of nodules was equivalent between 60 mA and the changing method, whereas degradation occurred at 20 mA. This method seems feasible for the low-dose CT of lung cancer screening.

© RSNA, 2002

Index terms: Cancer screening, 60.12115, 60.32 • Computed tomography (CT), helical, 60.12115 • Computed tomography (CT), image quality, 60.12115 • Lung neoplasms, CT, 60.12115, 60.32 • Lung neoplasms, diagnosis, 60.12115, 60.32

This article has been cited by other articles:

				K Imai, M Ikeda, S Wada, Y Enchi, and T Niimi Analysis of streak artefacts on CT images using statistics of extremes Br. J. Radiol., November 1, 2007; 80(959): 911 - 918. [Abstract] [Full Text] [PDF]

				J. K. Leader, T. E. Warfel, C. R. Fuhrman, S. K. Golla, J. L. Weissfeld, R. S. Avila, W. D. Turner, and B. Zheng Pulmonary Nodule Detection with Low-Dose CT of the Lung: Agreement Among Radiologists Am. J. Roentgenol., October 1, 2005; 185(4): 973 - 978. [Abstract] [Full Text] [PDF]

				G. Iinuma, N. Moriyama, M. Satake, K. Miyakawa, U. Tateishi, N. Uchiyama, T. Akasu, T. Fujii, and T. Kobayashi Vascular Virtual Endoluminal Visualization of Invasive Colorectal Cancer on MDCT Colonography Am. J. Roentgenol., April 1, 2005; 184(4): 1194 - 1198. [Abstract] [Full Text] [PDF]

				D. Tack, V. De Maertelaer, and P. A. Gevenois Dose Reduction in Multidetector CT Using Attenuation-Based Online Tube Current Modulation Am. J. Roentgenol., August 1, 2003; 181(2): 331 - 334. [Abstract] [Full Text] [PDF]