Analytical noise and slice-sensitivity-profile models for multislice helical CT

2003 ◽  
Author(s):  
Jiang Hsieh
2010 ◽  
Vol 37 (10) ◽  
pp. 5155-5164 ◽  
Author(s):  
Hua Li ◽  
Lifeng Yu ◽  
Xin Liu ◽  
Joel G. Fletcher ◽  
Cynthia H. McCollough

Orthopedics ◽  
2008 ◽  
Vol 31 (8) ◽  
pp. 1-3
Author(s):  
Zafer Ünsal Coskun ◽  
Serkan Bilgiç ◽  
Özkan Köse

2001 ◽  
Vol 176 (6) ◽  
pp. 1559-1561 ◽  
Author(s):  
Donald P. Frush ◽  
Lane F. Donnelly ◽  
George S. Bisset

2021 ◽  
Author(s):  
Nani Lasiyah ◽  
Choirul Anam ◽  
Eko Hidayanto ◽  
Geoff Dougherty

Abstract Purpose: We used an improved algorithm to automatically measure the slice sensitivity profile (SSP) and its full-width at half maximum (FWHM) from all three stair objects within an image of the AAPM CT performance phantom.Methods: The phantom was scanned with a Philips Ingenuity 128-slice CT scanner using slice thicknesses of 1 mm and 5 mm. The three stair objects were named top #1, middle #2, and bottom #3. The software was able to measure the SSP and its FWHM form object #1, #2, #3, and all objects. The SSPs and FWHMs from each stair object were compared with manual measurements. Results: The FWHM values for a slice thickness of 1 mm were 1.3 ± 0.1 mm for all the stair objects. The FWHM values for a slice thickness of 5 mm were 5.2 ± 0.1 mm, 5.1 ± 0.3 mm, 5.2 ± 0.1 mm for the top, bottom, and middle stair objects, respectively. The results of manual measurements had the same trend as those of the automated measurements.Conclusion: The improved algorithm for measuring SSP and its FWHM from any stair object within the AAPM performance phantom was successfully developed. The SSPs and their FWHM values measured from every stair object were similar (p > 0.05).


2000 ◽  
Vol 174 (6) ◽  
pp. 1620-1622 ◽  
Author(s):  
Lane F. Donnelly ◽  
Donald P. Frush ◽  
Rendon C. Nelson

2002 ◽  
Vol 26 (5) ◽  
pp. 750-755 ◽  
Author(s):  
Christoph R. Becker ◽  
Andreas Knez ◽  
Alexander Leber ◽  
Hendrik Treede ◽  
B. Ohnesorge ◽  
...  

2018 ◽  
Vol 53 ◽  
pp. 108-117 ◽  
Author(s):  
Taku Kuramoto ◽  
Junji Morishita ◽  
Toyoyuki Kato ◽  
Yasuhiko Nakamura

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