Literature DB >> 850513

Modulation transfer function of the EMI CT head scanner.

C J Bischof, J C Ehrhardt.   

Abstract

The two-dimensional modulation transfer function [MTF(vx, vy)] has been determined for the EMI CT head scanner by measuring the point spread function (PSF) in different locations in the field of view. This PSF was obtained by scanning a fine wire supported perpendicular to the tomographic slice. Based on these MTFs, the resolving power of the EMI scanner was found to be 3.1 line pairs/cm. Our results also verify the symmetry of the system response and the uniformity of the system resolution.

Mesh：

Year:  1977        PMID： 850513     DOI： 10.1118/1.594305

Source DB:  PubMed          Journal:  Med Phys        ISSN： 0094-2405            Impact factor:   4.071


  16 in total

1.  Experimental evaluation of computerised tomography point spread function variability within the field of view: parametric models.

Authors:  S Doré; R E Kearney
Journal:  Med Biol Eng Comput       Date:  2004-09       Impact factor: 2.602

2.  Experimental validation of a three-dimensional linear system model for breast tomosynthesis.

Authors:  Bo Zhao; Jun Zhou; Yue-Houng Hu; Thomas Mertelmeier; Jasmina Ludwig; Wei Zhao
Journal:  Med Phys       Date:  2009-01       Impact factor: 4.071

Review 3.  Anniversary paper. Development of x-ray computed tomography: the role of medical physics and AAPM from the 1970s to present.

Authors:  Xiaochuan Pan; Jeffrey Siewerdsen; Patrick J La Riviere; Willi A Kalender
Journal:  Med Phys       Date:  2008-08       Impact factor: 4.071

4.  Experimental correlation-based identification of X-ray CT point spread function. Part 1: Method and experimental results.

Authors:  S Doré; R E Kearney; J A De Guise
Journal:  Med Biol Eng Comput       Date:  1997-01       Impact factor: 2.602

5.  Fundamental relationship between the noise properties of grating-based differential phase contrast CT and absorption CT: theoretical framework using a cascaded system model and experimental validation.

Authors:  Ke Li; Nicholas Bevins; Joseph Zambelli; Guang-Hong Chen
Journal:  Med Phys       Date:  2013-02       Impact factor: 4.071

6.  Modulation transfer function measurement of CT images by use of a circular edge method with a logistic curve-fitting technique.

Authors:  Tomomi Takenaga; Shigehiko Katsuragawa; Makoto Goto; Masahiro Hatemura; Yoshikazu Uchiyama; Junji Shiraishi
Journal:  Radiol Phys Technol       Date:  2014-08-21

7.  Spatial resolution measurement for iterative reconstruction by use of image-averaging techniques in computed tomography.

Authors:  Atsushi Urikura; Katsuhiro Ichikawa; Takanori Hara; Eiji Nishimaru; Yoshihiro Nakaya
Journal:  Radiol Phys Technol       Date:  2014-06-01

8.  Spatial resolution characterization of differential phase contrast CT systems via modulation transfer function (MTF) measurements.

Authors:  Ke Li; Joseph Zambelli; Nicholas Bevins; Yongshuai Ge; Guang-Hong Chen
Journal:  Phys Med Biol       Date:  2013-05-17       Impact factor: 3.609

Review 9.  Spatial resolution in CBCT machines for dental/maxillofacial applications-what do we know today?

Authors:  D Brüllmann; R K W Schulze
Journal:  Dentomaxillofac Radiol       Date:  2015       Impact factor: 2.419

10.  Investigation of spatial resolution characteristics of an in vivo micro computed tomography system.

Authors:  Muhammad U Ghani; Zhongxing Zhou; Liqiang Ren; Yuhua Li; Bin Zheng; Kai Yang; Hong Liu
Journal:  Nucl Instrum Methods Phys Res A       Date:  2016-01-21       Impact factor: 1.455
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