Radiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Correction (v203,p884)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Samei, E.
Right arrow Articles by Eyler, W. R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Samei, E.
Right arrow Articles by Eyler, W. R.

Radiology, Vol 202, 117-124, Copyright © 1997 by Radiological Society of North America

ARTICLES

Simulation of subtle lung nodules in projection chest radiography [published erratum appears in Radiology 1997 Jun;203(3):884]

E Samei, MJ Flynn and WR Eyler
Department of Diagnostic Radiology, Henry Ford Health System, Detroit, MI 48202, USA.

PURPOSE: To measure the radiologic characteristics of subtle lung nodules and develop nodule phantoms that simulate these characteristics. MATERIALS AND METHODS: From a database of chest radiographs, 16 radiographs that showed confirmed subtle lung nodules were selected. The optical density values surrounding each nodule were obtained, and the radiologic characteristic of the nodules were evaluated. A set of Teflon nodule phantoms with similar x-ray transmission and variability was designed and fabricated. The contrast characteristics of the images of the nodule phantoms were measured. RESULTS: Most of the subtle nodules appeared to have diffuse edges with Gaussian-like contrast profiles. The contrast and size characteristics of the nodule phantom images fulfilled the design criteria within a 4% deviation. CONCLUSION: The radiologic pattern of subtle lung nodules is poorly simulated by nodule phantoms with simple spherical or disk shapes. The nodule phantoms in this study produce realistic radiographic patterns with an energy-dependent attenuation equivalent to that of tissue. The nodule phantoms are intended for use in experiments involving human subjects.


This article has been cited by other articles:


Home page
 Am. J. Roentgenol.Home page
E. Samei, S. A. Stebbins, J. T. Dobbins III, and J. Y. Lo
Multiprojection Correlation Imaging for Improved Detection of Pulmonary Nodules
Am. J. Roentgenol., May 1, 2007; 188(5): 1239 - 1245.
[Abstract] [Full Text] [PDF]

Home page
 Br. J. Radiol.Home page
D S Brettle, E Berry, and M A Smith
The effect of experience on detectability in local area anatomical noise
Br. J. Radiol., March 1, 2007; 80(951): 186 - 193.
[Abstract] [Full Text] [PDF]

Home page
 RadiologyHome page
C. L. Hoe, E. Samei, D. P. Frush, and D. M. Delong
Simulation of Liver Lesions for Pediatric CT
Radiology, December 21, 2005; (2005) 2381050477.
[Abstract] [Full Text]

Home page
 Br. J. Radiol.Home page
K Ono, T Yoshitake, K Akahane, Y Yamada, T Maeda, M Kai, and T Kusama
Comparison of a digital flat-panel versus screen-film, photofluorography and storage-phosphor systems by detection of simulated lung adenocarcinoma lesions using hard copy images
Br. J. Radiol., October 1, 2005; 78(934): 922 - 927.
[Abstract] [Full Text] [PDF]

Home page
 J Ultrasound MedHome page
S. R. Turner, E. Samei, B. S. Hertzberg, D. M. DeLong, R. Vargas-Voracek, A. Singer, C. H. Maynor, and M. A. Kliewer
Sonography of Fetal Choroid Plexus Cysts: Detection Depends on Cyst Size and Gestational Age
J. Ultrasound Med., November 1, 2003; 22(11): 1219 - 1227.
[Abstract] [Full Text] [PDF]

Home page
 RadiologyHome page
E. Samei, M. J. Flynn, E. Peterson, and W. R. Eyler
Subtle Lung Nodules: Influence of Local Anatomic Variations on Detection
Radiology, July 1, 2003; 228(1): 76 - 84.
[Abstract] [Full Text] [PDF]

Home page
 RadiologyHome page
E. Samei, M. J. Flynn, and W. R. Eyler
Detection of Subtle Lung Nodules: Relative Influence of Quantum and Anatomic Noise on Chest Radiographs
Radiology, December 1, 1999; 213(3): 727 - 734.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
RADIOLOGY RADIOGRAPHICS RSNA JOURNALS ONLINE
Copyright © 1997 by the Radiological Society of North America.