A phantom study for the comparison of different brands of computed tomography scanners and software packages for endovascular aneurysm repair sizing and planning

Juliëtte F. Velu, Erik Groot Jebbink, Jean-Paul P.M. de Vries, Job J.A.M. van der Palen, Cornelis H. Slump, Robert H. Geelkerken (Corresponding Author)

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Abstract

Objectives: Correct sizing of endoprostheses used for the treatment of abdominal aortic aneurysms is important to prevent endoleaks and migration. Sizing requires several steps and each step introduces a possible sizing error. The goal of this study was to investigate the magnitude of these errors compared to the golden standard: a vessel phantom. This study focuses on the errors in sizing with three different brands of computed tomography angiography scanners in combination with three reconstruction software packages.

Methods: Three phantoms with a different diameter, altitude and azimuth were scanned with three computed tomography scanners: Toshiba Aquilion 64-slice, Philips Brilliance iCT 256-slice and Siemens Somatom Sensation 64-slice. The phantom diameters were determined in the stretched view after central lumen line reconstruction by three observers using Simbionix PROcedure Rehearsal Studio, 3mensio and TeraRecon planning software. The observers, all novices in sizing endoprostheses using planning software, measured 108 slices each. Two senior vascular surgeons set the tolerated error margin of sizing on ±1.0?mm.

Results: In total, 11.3% of the measurements (73/648) were outside the set margins of ±1.0 mm from the phantom diameter, with significant differences between the scanner types (14.8%, 12.1%, 6.9% for the Siemens scanner, Philips scanner and Toshiba scanner, respectively, p-value?=?0.032), but not between the software packages (8.3%, 11.1%, 14.4%, p-value?=?0.141) or the observers (10.6%, 9.7%, 13.4%, p-value?=?0.448).

Conclusions: It can be concluded that the errors in sizing were independent of the used software packages, but the phantoms scanned with Siemens scanner were significantly more measured incorrectly than the phantoms scanned with the Toshiba scanner. Consequently, awareness on the type of computed tomography scanner and computed tomography scanner setting is necessary, especially in complex abdominal aortic aneurysms sizing for fenestrated or branched endovascular aneurysm repair if appropriate the sizing is of upmost importance.
Original languageEnglish
Pages (from-to)198-202
Number of pages5
JournalVascular
Volume26
Issue number2
Early online date18 Aug 2017
DOIs
Publication statusPublished - 1 Apr 2018

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X-Ray Computed Tomography Scanners
Aneurysm
Software
Abdominal Aortic Aneurysm
Endoleak
Blood Vessels

Keywords

  • Aneurysm
  • Endovascular aneurysm repair
  • Diameter
  • Stent-graft
  • Endoleak
  • endoleak
  • stent-graft
  • diameter
  • endovascular aneurysm repair

Cite this

@article{5faad81d516d4070ad704f0ee415cce5,
title = "A phantom study for the comparison of different brands of computed tomography scanners and software packages for endovascular aneurysm repair sizing and planning",
abstract = "Objectives: Correct sizing of endoprostheses used for the treatment of abdominal aortic aneurysms is important to prevent endoleaks and migration. Sizing requires several steps and each step introduces a possible sizing error. The goal of this study was to investigate the magnitude of these errors compared to the golden standard: a vessel phantom. This study focuses on the errors in sizing with three different brands of computed tomography angiography scanners in combination with three reconstruction software packages.Methods: Three phantoms with a different diameter, altitude and azimuth were scanned with three computed tomography scanners: Toshiba Aquilion 64-slice, Philips Brilliance iCT 256-slice and Siemens Somatom Sensation 64-slice. The phantom diameters were determined in the stretched view after central lumen line reconstruction by three observers using Simbionix PROcedure Rehearsal Studio, 3mensio and TeraRecon planning software. The observers, all novices in sizing endoprostheses using planning software, measured 108 slices each. Two senior vascular surgeons set the tolerated error margin of sizing on ±1.0?mm.Results: In total, 11.3{\%} of the measurements (73/648) were outside the set margins of ±1.0 mm from the phantom diameter, with significant differences between the scanner types (14.8{\%}, 12.1{\%}, 6.9{\%} for the Siemens scanner, Philips scanner and Toshiba scanner, respectively, p-value?=?0.032), but not between the software packages (8.3{\%}, 11.1{\%}, 14.4{\%}, p-value?=?0.141) or the observers (10.6{\%}, 9.7{\%}, 13.4{\%}, p-value?=?0.448).Conclusions: It can be concluded that the errors in sizing were independent of the used software packages, but the phantoms scanned with Siemens scanner were significantly more measured incorrectly than the phantoms scanned with the Toshiba scanner. Consequently, awareness on the type of computed tomography scanner and computed tomography scanner setting is necessary, especially in complex abdominal aortic aneurysms sizing for fenestrated or branched endovascular aneurysm repair if appropriate the sizing is of upmost importance.",
keywords = "Aneurysm, Endovascular aneurysm repair, Diameter, Stent-graft, Endoleak, endoleak, stent-graft, diameter, endovascular aneurysm repair",
author = "Velu, {Juli{\"e}tte F.} and {Groot Jebbink}, Erik and {de Vries}, {Jean-Paul P.M.} and {van der Palen}, {Job J.A.M.} and Slump, {Cornelis H.} and Geelkerken, {Robert H.}",
year = "2018",
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doi = "10.1177/1708538117726648",
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volume = "26",
pages = "198--202",
journal = "Vascular",
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TY - JOUR

T1 - A phantom study for the comparison of different brands of computed tomography scanners and software packages for endovascular aneurysm repair sizing and planning

AU - Velu, Juliëtte F.

AU - Groot Jebbink, Erik

AU - de Vries, Jean-Paul P.M.

AU - van der Palen, Job J.A.M.

AU - Slump, Cornelis H.

AU - Geelkerken, Robert H.

PY - 2018/4/1

Y1 - 2018/4/1

N2 - Objectives: Correct sizing of endoprostheses used for the treatment of abdominal aortic aneurysms is important to prevent endoleaks and migration. Sizing requires several steps and each step introduces a possible sizing error. The goal of this study was to investigate the magnitude of these errors compared to the golden standard: a vessel phantom. This study focuses on the errors in sizing with three different brands of computed tomography angiography scanners in combination with three reconstruction software packages.Methods: Three phantoms with a different diameter, altitude and azimuth were scanned with three computed tomography scanners: Toshiba Aquilion 64-slice, Philips Brilliance iCT 256-slice and Siemens Somatom Sensation 64-slice. The phantom diameters were determined in the stretched view after central lumen line reconstruction by three observers using Simbionix PROcedure Rehearsal Studio, 3mensio and TeraRecon planning software. The observers, all novices in sizing endoprostheses using planning software, measured 108 slices each. Two senior vascular surgeons set the tolerated error margin of sizing on ±1.0?mm.Results: In total, 11.3% of the measurements (73/648) were outside the set margins of ±1.0 mm from the phantom diameter, with significant differences between the scanner types (14.8%, 12.1%, 6.9% for the Siemens scanner, Philips scanner and Toshiba scanner, respectively, p-value?=?0.032), but not between the software packages (8.3%, 11.1%, 14.4%, p-value?=?0.141) or the observers (10.6%, 9.7%, 13.4%, p-value?=?0.448).Conclusions: It can be concluded that the errors in sizing were independent of the used software packages, but the phantoms scanned with Siemens scanner were significantly more measured incorrectly than the phantoms scanned with the Toshiba scanner. Consequently, awareness on the type of computed tomography scanner and computed tomography scanner setting is necessary, especially in complex abdominal aortic aneurysms sizing for fenestrated or branched endovascular aneurysm repair if appropriate the sizing is of upmost importance.

AB - Objectives: Correct sizing of endoprostheses used for the treatment of abdominal aortic aneurysms is important to prevent endoleaks and migration. Sizing requires several steps and each step introduces a possible sizing error. The goal of this study was to investigate the magnitude of these errors compared to the golden standard: a vessel phantom. This study focuses on the errors in sizing with three different brands of computed tomography angiography scanners in combination with three reconstruction software packages.Methods: Three phantoms with a different diameter, altitude and azimuth were scanned with three computed tomography scanners: Toshiba Aquilion 64-slice, Philips Brilliance iCT 256-slice and Siemens Somatom Sensation 64-slice. The phantom diameters were determined in the stretched view after central lumen line reconstruction by three observers using Simbionix PROcedure Rehearsal Studio, 3mensio and TeraRecon planning software. The observers, all novices in sizing endoprostheses using planning software, measured 108 slices each. Two senior vascular surgeons set the tolerated error margin of sizing on ±1.0?mm.Results: In total, 11.3% of the measurements (73/648) were outside the set margins of ±1.0 mm from the phantom diameter, with significant differences between the scanner types (14.8%, 12.1%, 6.9% for the Siemens scanner, Philips scanner and Toshiba scanner, respectively, p-value?=?0.032), but not between the software packages (8.3%, 11.1%, 14.4%, p-value?=?0.141) or the observers (10.6%, 9.7%, 13.4%, p-value?=?0.448).Conclusions: It can be concluded that the errors in sizing were independent of the used software packages, but the phantoms scanned with Siemens scanner were significantly more measured incorrectly than the phantoms scanned with the Toshiba scanner. Consequently, awareness on the type of computed tomography scanner and computed tomography scanner setting is necessary, especially in complex abdominal aortic aneurysms sizing for fenestrated or branched endovascular aneurysm repair if appropriate the sizing is of upmost importance.

KW - Aneurysm

KW - Endovascular aneurysm repair

KW - Diameter

KW - Stent-graft

KW - Endoleak

KW - endoleak

KW - stent-graft

KW - diameter

KW - endovascular aneurysm repair

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U2 - 10.1177/1708538117726648

DO - 10.1177/1708538117726648

M3 - Article

VL - 26

SP - 198

EP - 202

JO - Vascular

JF - Vascular

SN - 1708-5381

IS - 2

ER -