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Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison.

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Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison. / Buhk, J-H; Groth, M; Sehner, S; Fiehler, J; Schmidt, N O; Grzyska, U.

In: ROFO-FORTSCHR RONTG, Vol. 185, No. 9, 9, 2013, p. 824-829.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

Buhk, J-H, Groth, M, Sehner, S, Fiehler, J, Schmidt, NO & Grzyska, U 2013, 'Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison.', ROFO-FORTSCHR RONTG, vol. 185, no. 9, 9, pp. 824-829. https://doi.org/10.1055/s-0033-1350117

APA

Buhk, J-H., Groth, M., Sehner, S., Fiehler, J., Schmidt, N. O., & Grzyska, U. (2013). Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison. ROFO-FORTSCHR RONTG, 185(9), 824-829. [9]. https://doi.org/10.1055/s-0033-1350117

Vancouver

Buhk J-H, Groth M, Sehner S, Fiehler J, Schmidt NO, Grzyska U. Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison. ROFO-FORTSCHR RONTG. 2013;185(9):824-829. 9. https://doi.org/10.1055/s-0033-1350117

Bibtex

@article{bf77582140424aa1b5319fb4fd907152,
title = "Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison.",
abstract = "PURPOSE: To evaluate a novel algorithm for correcting beam hardening artifacts caused by metal implants in computed tomography performed on a C-arm angiography system equipped with a flat panel (FP-CT).MATERIALS AND METHODS: 16 datasets of cerebral FP-CT acquisitions after coil embolization of brain aneurysms in the context of acute subarachnoid hemorrhage have been reconstructed by applying a soft tissue kernel with and without a novel reconstruction filter for metal artifact correction. Image reading was performed in multiplanar reformations (MPR) in average mode on a dedicated radiological workplace in comparison to the preinterventional native multisection CT (MS-CT) scan serving as the anatomic gold standard. Two independent radiologists performed image scoring following a defined scale in direct comparison of the image data with and without artifact correction. For statistical analysis, a random intercept model was calculated.RESULTS: The inter-rater agreement was very high (ICC = 86.3 %). The soft tissue image quality and visualization of the CSF spaces at the level of the implants was substantially improved. The additional metal artifact correction algorithm did not induce impairment of the subjective image quality in any other brain regions.CONCLUSION: Adding metal artifact correction to FP-CT in an acute postinterventional setting helps to visualize the close vicinity of the aneurysm at a generally consistent image quality.",
keywords = "Acute Disease, Adult, Aged, Algorithms, Artifacts, Cerebral Angiography, Embolization, Therapeutic, Female, Humans, Image Enhancement, Image Processing, Computer-Assisted, Intracranial Aneurysm, Male, Metals, Middle Aged, Multidetector Computed Tomography, Observer Variation, Prostheses and Implants, Sensitivity and Specificity, Subarachnoid Hemorrhage, Tomography, X-Ray Computed",
author = "J-H Buhk and M Groth and S Sehner and J Fiehler and Schmidt, {N O} and U Grzyska",
note = "{\textcopyright} Georg Thieme Verlag KG Stuttgart · New York.",
year = "2013",
doi = "10.1055/s-0033-1350117",
language = "English",
volume = "185",
pages = "824--829",
journal = "ROFO-FORTSCHR RONTG",
issn = "1438-9029",
publisher = "Georg Thieme Verlag KG",
number = "9",

}

RIS

TY - JOUR

T1 - Application of a Novel Metal Artifact Correction Algorithm in Flat-Panel CT After Coil Embolization of Brain Aneurysms: Intraindividual Comparison.

AU - Buhk, J-H

AU - Groth, M

AU - Sehner, S

AU - Fiehler, J

AU - Schmidt, N O

AU - Grzyska, U

N1 - © Georg Thieme Verlag KG Stuttgart · New York.

PY - 2013

Y1 - 2013

N2 - PURPOSE: To evaluate a novel algorithm for correcting beam hardening artifacts caused by metal implants in computed tomography performed on a C-arm angiography system equipped with a flat panel (FP-CT).MATERIALS AND METHODS: 16 datasets of cerebral FP-CT acquisitions after coil embolization of brain aneurysms in the context of acute subarachnoid hemorrhage have been reconstructed by applying a soft tissue kernel with and without a novel reconstruction filter for metal artifact correction. Image reading was performed in multiplanar reformations (MPR) in average mode on a dedicated radiological workplace in comparison to the preinterventional native multisection CT (MS-CT) scan serving as the anatomic gold standard. Two independent radiologists performed image scoring following a defined scale in direct comparison of the image data with and without artifact correction. For statistical analysis, a random intercept model was calculated.RESULTS: The inter-rater agreement was very high (ICC = 86.3 %). The soft tissue image quality and visualization of the CSF spaces at the level of the implants was substantially improved. The additional metal artifact correction algorithm did not induce impairment of the subjective image quality in any other brain regions.CONCLUSION: Adding metal artifact correction to FP-CT in an acute postinterventional setting helps to visualize the close vicinity of the aneurysm at a generally consistent image quality.

AB - PURPOSE: To evaluate a novel algorithm for correcting beam hardening artifacts caused by metal implants in computed tomography performed on a C-arm angiography system equipped with a flat panel (FP-CT).MATERIALS AND METHODS: 16 datasets of cerebral FP-CT acquisitions after coil embolization of brain aneurysms in the context of acute subarachnoid hemorrhage have been reconstructed by applying a soft tissue kernel with and without a novel reconstruction filter for metal artifact correction. Image reading was performed in multiplanar reformations (MPR) in average mode on a dedicated radiological workplace in comparison to the preinterventional native multisection CT (MS-CT) scan serving as the anatomic gold standard. Two independent radiologists performed image scoring following a defined scale in direct comparison of the image data with and without artifact correction. For statistical analysis, a random intercept model was calculated.RESULTS: The inter-rater agreement was very high (ICC = 86.3 %). The soft tissue image quality and visualization of the CSF spaces at the level of the implants was substantially improved. The additional metal artifact correction algorithm did not induce impairment of the subjective image quality in any other brain regions.CONCLUSION: Adding metal artifact correction to FP-CT in an acute postinterventional setting helps to visualize the close vicinity of the aneurysm at a generally consistent image quality.

KW - Acute Disease

KW - Adult

KW - Aged

KW - Algorithms

KW - Artifacts

KW - Cerebral Angiography

KW - Embolization, Therapeutic

KW - Female

KW - Humans

KW - Image Enhancement

KW - Image Processing, Computer-Assisted

KW - Intracranial Aneurysm

KW - Male

KW - Metals

KW - Middle Aged

KW - Multidetector Computed Tomography

KW - Observer Variation

KW - Prostheses and Implants

KW - Sensitivity and Specificity

KW - Subarachnoid Hemorrhage

KW - Tomography, X-Ray Computed

U2 - 10.1055/s-0033-1350117

DO - 10.1055/s-0033-1350117

M3 - SCORING: Journal article

C2 - 23857073

VL - 185

SP - 824

EP - 829

JO - ROFO-FORTSCHR RONTG

JF - ROFO-FORTSCHR RONTG

SN - 1438-9029

IS - 9

M1 - 9

ER -