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Tytuł pozycji:

Semiautomated Renal Cortex Volumetry in Multislice Computed Tomography: Effect of Slice Thickness and Iterative Reconstruction Algorithms.

Tytuł :
Semiautomated Renal Cortex Volumetry in Multislice Computed Tomography: Effect of Slice Thickness and Iterative Reconstruction Algorithms.
Autorzy :
Houbois C; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Haneder S; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Merkt M; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Holz JA; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Morelli J; St. John's Medical Center, Tulsa, OK.
Kiel A; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Doerner J; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Maintz D; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
Puesken M; From the Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany.
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Źródło :
Journal of computer assisted tomography [J Comput Assist Tomogr] 2020 Mar/Apr; Vol. 44 (2), pp. 236-241.
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Publication: <2000->: Hagerstown, MD : Lippincott Williams & Wilkins
Original Publication: New York, Raven Press.
MeSH Terms :
Kidney Cortex/*diagnostic imaging
Kidney Cortex/*pathology
Multidetector Computed Tomography/*methods
Radiographic Image Interpretation, Computer-Assisted/*methods
Adult ; Aged ; Aged, 80 and over ; Algorithms ; Female ; Humans ; Male ; Middle Aged ; Observer Variation ; Organ Size ; Reproducibility of Results ; Retrospective Studies
References :
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Entry Date(s) :
Date Created: 20200321 Date Completed: 20200401 Latest Revision: 20210208
Update Code :
20220902
DOI :
10.1097/RCT.0000000000000988
PMID :
32195802
Czasopismo naukowe
Objective: The aim of the study was to evaluate the effect of slice thickness, iterative reconstruction (IR) algorithm, and kernel selection on measurement accuracy and interobserver variability for semiautomated renal cortex volumetry (RCV) with multislice computed tomography (CT).
Methods: Ten patients (62.4 ± 17.2 years) undergoing abdominal biphasic multislice computed tomography were enrolled in this retrospective study. Computed tomography data sets were reconstructed at 1-, 2-, and 5-mm slice thickness with 2 different IR algorithms (iDose, IMRST) and 2 different kernels (IMRS and IMRR) (Philips, the Netherlands). Two readers independently performed semiautomated RCV for each reconstructed data set to calculate left kidney volume (LKV) and split renal function (SRF). Statistics were calculated using analysis of variance with Geisser-Greenhouse correction, followed by Tukey multiple comparisons post hoc test. Statistical significance was defined as P ≤ 0.05.
Results: Semiautomated RCV of 120 data sets (240 kidneys) was successfully performed by both readers. Semiautomated RCV provides comparable results for LKV and SRF with 3 different slice thicknesses, 2 different IR algorithms, and 2 different kernels. Only the 1-mm slice thickness showed significant differences for LKV between IMRR and IMRS (P = 0.02, mean difference = 4.28 bb) and IMRST versus IMRS (P = 0.02, mean difference = 4.68 cm) for reader 2. Interobserver variability was low between both readers irrespective of slice thickness and reconstruction algorithm (0.82 ≥ P ≥ 0.99).
Conclusions: Semiautomated RCV measurements of LKV and SRF are independent of slice thickness, IR algorithm, and kernel selection. These findings suggest that comparisons between studies using different slice thicknesses and reconstruction algorithms for RCV are valid.

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