Comparison of the effects of model-based iterative reconstruction and filtered back projection algorithms on software measurements in pulmonary subsolid nodules.
Objectives: To evaluate the differences between filtered back projection (FBP) and model-based iterative reconstruction (MBIR) algorithms on semi-automatic measurements in subsolid nodules (SSNs).Methods: Unenhanced CT scans of 73 SSNs obtained using the same protocol and reconstructed with both FBP...
| Publicado en: | European Radiology Vol. 27; no. 8; pp. 3266 - 3275 |
|---|---|
| Autores principales: | , , , , , , , , , , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Aug2017
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=123837847&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 123837847 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Aug2017 vid: 27 iid: 8 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 123837847 123837847 144119855 NLM28058482 10.1007/s00330-016-4716-5 NLM28058482 123837847 ppf: 3266 ppct: 9 formats: fmt: @attributes: type: P tig: atl: Comparison of the effects of model-based iterative reconstruction and filtered back projection algorithms on software measurements in pulmonary subsolid nodules. aug: au: Cohen, Julien Kim, Hyungjin Park, Su Ginneken, Bram Ferretti, Gilbert Lee, Chang Goo, Jin Park, Chang Cohen, Julien G Park, Su Bin van Ginneken, Bram Ferretti, Gilbert R Lee, Chang Hyun Goo, Jin Mo Park, Chang Min affil: Department of Radiology and Nuclear Medicine , Radboud University Nijmegen Medical Center , Geert Grooteplein 10 6525 GA Nijmegen The Netherlands sug: subj: Algorithms Radiographic Image Interpretation, Computer-Assisted Methods Lung Neoplasms Tomography, X-Ray Computed Methods Female Male Aged Observer Bias Reproducibility of Results Lung Neoplasms Pathology Retrospective Design Middle Age Software Adult Radionuclide Imaging Aged: 65+ years Middle Aged: 45-64 years Adult: 19-44 years Female Male ab: Objectives: To evaluate the differences between filtered back projection (FBP) and model-based iterative reconstruction (MBIR) algorithms on semi-automatic measurements in subsolid nodules (SSNs).Methods: Unenhanced CT scans of 73 SSNs obtained using the same protocol and reconstructed with both FBP and MBIR algorithms were evaluated by two radiologists. Diameter, mean attenuation, mass and volume of whole nodules and their solid components were measured. Intra- and interobserver variability and differences between FBP and MBIR were then evaluated using Bland-Altman method and Wilcoxon tests.Results: Longest diameter, volume and mass of nodules and those of their solid components were significantly higher using MBIR (p < 0.05) with mean differences of 1.1% (limits of agreement, -6.4 to 8.5%), 3.2% (-20.9 to 27.3%) and 2.9% (-16.9 to 22.7%) and 3.2% (-20.5 to 27%), 6.3% (-51.9 to 64.6%), 6.6% (-50.1 to 63.3%), respectively. The limits of agreement between FBP and MBIR were within the range of intra- and interobserver variability for both algorithms with respect to the diameter, volume and mass of nodules and their solid components. There were no significant differences in intra- or interobserver variability between FBP and MBIR (p > 0.05).Conclusion: Semi-automatic measurements of SSNs significantly differed between FBP and MBIR; however, the differences were within the range of measurement variability.Key Points: • Intra- and interobserver reproducibility of measurements did not differ between FBP and MBIR. • Differences in SSNs' semi-automatic measurement induced by reconstruction algorithms were not clinically significant. • Semi-automatic measurement may be conducted regardless of reconstruction algorithm. • SSNs' semi-automated classification agreement (pure vs. part-solid) did not significantly differ between algorithms. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|