Application of adaptive non-linear 2D and 3D postprocessing filters for reduced dose abdominal CT

Acta Radiologica
L BorgenO Smedby

Abstract

Abdominal computed tomography (CT) is a frequently performed imaging procedure, resulting in considerable radiation doses to the patient population. Postprocessing filters are one of several dose reduction measures that might help to reduce radiation doses without loss of image quality. To assess and compare the effect of two- and three-dimensional (2D, 3D) non-linear adaptive filters on reduced dose abdominal CT images. Two baseline abdominal CT image series with a volume computer tomography dose index (CTDI (vol)) of 12 mGy and 6 mGy were acquired for 12 patients. Reduced dose images were postprocessed with 2D and 3D filters. Six radiologists performed blinded randomized, side-by-side image quality assessments. Objective noise was measured. Data were analyzed using visual grading regression and mixed linear models. All image quality criteria were rated as superior for 3D filtered images compared to reduced dose baseline and 2D filtered images (P < 0.01). Standard dose images had better image quality than reduced dose 3D filtered images (P < 0.01), but similar image noise. For patients with body mass index (BMI) < 30 kg/m(2) however, 3D filtered images were rated significantly better than normal dose images for two image crite...Continue Reading

References

Dec 10, 2002·RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin·G Stamm, H D Nagel
May 17, 2003·Radiology·Mannudeep K KalraJo-Anne Shepard
Nov 12, 2003·RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin·U BaumW Bautz
Nov 4, 2006·Journal of Computer Assisted Tomography·Takeshi KuboHiroto Hatabu
Mar 3, 2009·Journal of the American College of Radiology : JACR·Mahadevappa Mahesh, James M Hevezi
Aug 28, 2009·The New England Journal of Medicine·Michael S Lauer
Aug 28, 2009·The New England Journal of Medicine·Reza FazelBrahmajee K Nallamothu
Sep 29, 2009·IEEE Transactions on Medical Imaging·Adriënne M MendrikBram van Ginneken
Nov 10, 2009·RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin·P KröpilM Cohnen
Mar 9, 2010·Radiation Protection Dosimetry·Peter LeanderIda Albertsson
Mar 13, 2010·The British Journal of Radiology·O Smedby, M Fredrikson
Apr 13, 2010·Radiation Protection Dosimetry·K LedeniusA Thilander-Klang

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Citations

Jul 24, 2012·Radiology·James H Thrall
Dec 15, 2012·The British Journal of Radiology·O SmedbyM Sandborg
Sep 28, 2015·Radiation Protection Dosimetry·Erik TesselaarMichael Sandborg
Jun 24, 2015·AJR. American Journal of Roentgenology·Manuel PatinoDushyant V Sahani
May 20, 2014·Journal of Computer Assisted Tomography·Stefaan S GryspeerdtPhilippe Lefere
Jun 23, 2012·The British Journal of Radiology·O SmedbyM Sandborg

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Software Mentioned

ContextVision
DICOM
CT
JMP
expo
Visual
Visual Regression

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