View in EDS HTML Full Text PDF Full Text

Assessment of an Advanced Monoenergetic Reconstruction Technique in Dual-Energy Computed Tomography of Head and Neck Cancer.

Saved in:
Bibliographic Details
Title: Assessment of an Advanced Monoenergetic Reconstruction Technique in Dual-Energy Computed Tomography of Head and Neck Cancer.
Authors: Albrecht, Moritz H (AUTHOR), Scholtz, Jan-Erik (AUTHOR), Kraft, Johannes (AUTHOR), Bauer, Ralf W (AUTHOR), Kaup, Moritz (AUTHOR), Dewes, Patricia (AUTHOR), Bucher, Andreas M (AUTHOR), Burck, Iris (AUTHOR), Wagenblast, Jens (AUTHOR), Lehnert, Thomas (AUTHOR), Kerl, J Matthias (AUTHOR), Vogl, Thomas J (AUTHOR), Wichmann, Julian L (AUTHOR)
Source: European Radiology. Aug2015, Vol. 25 Issue 8, p2493-2501. 9p.
Abstract: Objectives: To define optimal keV settings for advanced monoenergetic (Mono+) dual-energy computed tomography (DECT) in patients with head and neck squamous cell carcinoma (SCC).Methods: DECT data of 44 patients (34 men, mean age 55.5 ± 16.0 years) with histopathologically confirmed SCC were reconstructed as 40, 55, 70 keV Mono + and M_0.3 (30 % 80 kV) linearly blended series. Attenuation of tumour, sternocleidomastoid muscle, internal jugular vein, submandibular gland, and noise were measured. Three radiologists with >3 years of experience subjectively assessed image quality, lesion delineation, image sharpness, and noise.Results: The highest lesion attenuation was shown for 40 keV series (248.1 ± 94.1 HU), followed by 55 keV (150.2 ± 55.5 HU; P = 0.001). Contrast-to-noise ratio (CNR) at 40 keV (19.09 ± 13.84) was significantly superior to all other reconstructions (55 keV, 10.25 ± 9.11; 70 keV, 7.68 ± 6.31; M_0.3, 5.49 ± 3.28; all P < 0.005). Subjective image quality was highest for 55 keV images (4.53; κ = 0.38, P = 0.003), followed by 40 keV (4.14; κ = 0.43, P < 0.001) and 70 keV reconstructions (4.06; κ = 0.32, P = 0.005), all superior (P < 0.004) to linear blending M_0.3 (3.81; κ = 0.280, P = 0.056).Conclusions: Mono + DECT at low keV levels significantly improves CNR and subjective image quality in patients with head and neck SCC, as tumour CNR peaks at 40 keV, and 55 keV images are preferred by observers.Key Points: • Mono + DECT combines increased contrast with reduced image noise, unlike linearly blended images. • Mono + DECT imaging allows for superior CNR and subjective image quality. • Head and neck tumour contrast-to-noise ratio peaks at 40 keV. • 55 keV images are preferred over all other series by observers. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 109594938
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Assessment of an Advanced Monoenergetic Reconstruction Technique in Dual-Energy Computed Tomography of Head and Neck Cancer.
– Name: Author
  Label: Authors
  Group: Au
  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Albrecht%2C+Moritz+H%22&quot;&gt;Albrecht, Moritz H&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Scholtz%2C+Jan-Erik%22&quot;&gt;Scholtz, Jan-Erik&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kraft%2C+Johannes%22&quot;&gt;Kraft, Johannes&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bauer%2C+Ralf+W%22&quot;&gt;Bauer, Ralf W&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kaup%2C+Moritz%22&quot;&gt;Kaup, Moritz&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Dewes%2C+Patricia%22&quot;&gt;Dewes, Patricia&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bucher%2C+Andreas+M%22&quot;&gt;Bucher, Andreas M&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Burck%2C+Iris%22&quot;&gt;Burck, Iris&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Wagenblast%2C+Jens%22&quot;&gt;Wagenblast, Jens&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lehnert%2C+Thomas%22&quot;&gt;Lehnert, Thomas&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kerl%2C+J+Matthias%22&quot;&gt;Kerl, J Matthias&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Vogl%2C+Thomas+J%22&quot;&gt;Vogl, Thomas J&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Wichmann%2C+Julian+L%22&quot;&gt;Wichmann, Julian L&lt;/searchLink&gt; (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22European+Radiology%22&quot;&gt;European Radiology&lt;/searchLink&gt;. Aug2015, Vol. 25 Issue 8, p2493-2501. 9p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: &lt;bold&gt;Objectives: &lt;/bold&gt;To define optimal keV settings for advanced monoenergetic (Mono+) dual-energy computed tomography (DECT) in patients with head and neck squamous cell carcinoma (SCC).&lt;bold&gt;Methods: &lt;/bold&gt;DECT data of 44 patients (34 men, mean age 55.5 &#177; 16.0&#160;years) with histopathologically confirmed SCC were reconstructed as 40, 55, 70&#160;keV Mono + and M_0.3 (30&#160;% 80&#160;kV) linearly blended series. Attenuation of tumour, sternocleidomastoid muscle, internal jugular vein, submandibular gland, and noise were measured. Three radiologists with &gt;3&#160;years of experience subjectively assessed image quality, lesion delineation, image sharpness, and noise.&lt;bold&gt;Results: &lt;/bold&gt;The highest lesion attenuation was shown for 40&#160;keV series (248.1 &#177; 94.1 HU), followed by 55&#160;keV (150.2 &#177; 55.5 HU; P = 0.001). Contrast-to-noise ratio (CNR) at 40&#160;keV (19.09 &#177; 13.84) was significantly superior to all other reconstructions (55&#160;keV, 10.25 &#177; 9.11; 70&#160;keV, 7.68 &#177; 6.31; M_0.3, 5.49 &#177; 3.28; all P &lt; 0.005). Subjective image quality was highest for 55&#160;keV images (4.53; κ = 0.38, P = 0.003), followed by 40&#160;keV (4.14; κ = 0.43, P &lt; 0.001) and 70&#160;keV reconstructions (4.06; κ = 0.32, P = 0.005), all superior (P &lt; 0.004) to linear blending M_0.3 (3.81; κ = 0.280, P = 0.056).&lt;bold&gt;Conclusions: &lt;/bold&gt;Mono + DECT at low keV levels significantly improves CNR and subjective image quality in patients with head and neck SCC, as tumour CNR peaks at 40&#160;keV, and 55&#160;keV images are preferred by observers.&lt;bold&gt;Key Points: &lt;/bold&gt;• Mono + DECT combines increased contrast with reduced image noise, unlike linearly blended images. • Mono + DECT imaging allows for superior CNR and subjective image quality. • Head and neck tumour contrast-to-noise ratio peaks at 40&#160;keV. • 55&#160;keV images are preferred over all other series by observers. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: &lt;i&gt;Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=109594938
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s00330-015-3627-1
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 2493
    Titles:
      – TitleFull: Assessment of an Advanced Monoenergetic Reconstruction Technique in Dual-Energy Computed Tomography of Head and Neck Cancer.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Albrecht, Moritz H
      – PersonEntity:
          Name:
            NameFull: Scholtz, Jan-Erik
      – PersonEntity:
          Name:
            NameFull: Kraft, Johannes
      – PersonEntity:
          Name:
            NameFull: Bauer, Ralf W
      – PersonEntity:
          Name:
            NameFull: Kaup, Moritz
      – PersonEntity:
          Name:
            NameFull: Dewes, Patricia
      – PersonEntity:
          Name:
            NameFull: Bucher, Andreas M
      – PersonEntity:
          Name:
            NameFull: Burck, Iris
      – PersonEntity:
          Name:
            NameFull: Wagenblast, Jens
      – PersonEntity:
          Name:
            NameFull: Lehnert, Thomas
      – PersonEntity:
          Name:
            NameFull: Kerl, J Matthias
      – PersonEntity:
          Name:
            NameFull: Vogl, Thomas J
      – PersonEntity:
          Name:
            NameFull: Wichmann, Julian L
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: Aug2015
              Type: published
              Y: 2015
          Identifiers:
            – Type: issn-print
              Value: 09387994
          Numbering:
            – Type: volume
              Value: 25
            – Type: issue
              Value: 8
          Titles:
            – TitleFull: European Radiology
              Type: main
ResultId 1