Literature DB >> 785201

Statistical limitations in x-ray reconstructive tomography.

R A Brooks, G Di Chiro.   

Abstract

Statistical fluctuations, or noise, in reconstructed tomograms are analyzed as a function of x-ray energy. The result is essentially constant for energies above 50 keV, assuming constant dose and spatial resolution, and is in close agreement with the actual performance of the EMI-Scanner (water-bag model). The noise is inversely proportional to the square of cell dimensions. For scanners without a water bag, the theoretical noise is approximately 30% less.

Entities:  

Mesh：

Year:  1976        PMID： 785201     DOI： 10.1118/1.594240

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


  23 in total

Review 1.  Multislice computed tomography of the coronary arteries.

Authors:  Jens Rodenwaldt
Journal:  Eur Radiol       Date:  2003-01-22       Impact factor: 5.315

2.  Influence of detector collimation on SNR in four different MDCT scanners using a reconstructed slice thickness of 5 mm.

Authors:  F R Verdun; A Noel; R Meuli; M Pachoud; P Monnin; J-F Valley; P Schnyder; A Denys
Journal:  Eur Radiol       Date:  2004-07-27       Impact factor: 5.315

3.  Band-restricted estimation of noise variance in filtered backprojection reconstructions using repeated scans.

Authors:  Adam Wunderlich; Frederic Noo
Journal:  IEEE Trans Med Imaging       Date:  2010-03-15       Impact factor: 10.048

4.  Algorithm-enabled low-dose micro-CT imaging.

Authors:  Xiao Han; Junguo Bian; Diane R Eaker; Timothy L Kline; Emil Y Sidky; Erik L Ritman; Xiaochuan Pan
Journal:  IEEE Trans Med Imaging       Date:  2010-10-25       Impact factor: 10.048

5.  Urinary calculi: improved detection and characterization with thin-slice multidetector CT.

Authors:  Etienne Ketelslegers; Bernard E Van Beers
Journal:  Eur Radiol       Date:  2005-06-16       Impact factor: 5.315

6.  Temporally targeted imaging method applied to ECG-gated computed tomography: preliminary phantom and in vivo experience.

Authors:  Brian E Nett; Shuai Leng; Joseph N Zambelli; Scott B Reeder; Michael A Speidel; Guang-Hong Chen
Journal:  Acad Radiol       Date:  2008-01       Impact factor: 3.173

7.  Low-tube-voltage (80 kVp) CT aortography using 320-row volume CT with adaptive iterative reconstruction: lower contrast medium and radiation dose.

Authors:  Chien-Ming Chen; Sung-Yu Chu; Ming-Yi Hsu; Ying-Lan Liao; Hui-Yu Tsai
Journal:  Eur Radiol       Date:  2013-10-02       Impact factor: 5.315

8.  Effect of CT acquisition parameters in the detection of subtle hypoattenuation in acute cerebral infarction: a phantom study.

Authors:  C Tanaka; T Ueguchi; E Shimosegawa; N Sasaki; T Johkoh; H Nakamura; J Hatazawa
Journal:  AJNR Am J Neuroradiol       Date:  2006-01       Impact factor: 3.825

Review 9.  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

10.  Image covariance and lesion detectability in direct fan-beam x-ray computed tomography.

Authors:  Adam Wunderlich; Frédéric Noo
Journal:  Phys Med Biol       Date:  2008-04-18       Impact factor: 3.609
View more

北京卡尤迪生物科技股份有限公司 © 2022-2023.