View in EDS HTML Full Text PDF Full Text

Whole‐heart spiral simultaneous multi‐slice first‐pass myocardial perfusion imaging.

Saved in:
Bibliographic Details
Title: Whole‐heart spiral simultaneous multi‐slice first‐pass myocardial perfusion imaging.
Authors: Yang, Yang1, Meyer, Craig H.2,3, Epstein, Frederick H.2,3, Kramer, Christopher M.1,2, Salerno, Michael1,2,3 ms5pc@virginia.edu
Source: Magnetic Resonance in Medicine. Feb2019, Vol. 81 Issue 2, p852-862. 11p.
Abstract: Purpose: To develop and evaluate a simultaneous multislice (SMS) spiral perfusion pulse sequence with whole‐heart coverage. Methods: An orthogonal set of phase cycling angles following a Hadamard pattern was incorporated into a golden‐angle (GA) variable density spiral perfusion sequence to perform SMS imaging at different multiband (MB) factors. Images were reconstructed using an SMS extension of L1‐SPIRiT that we have termed SMS‐L1‐SPIRiT. The proposed sequence was evaluated in 40 subjects (10 each for MB factors of 1, 2, 3, and 4). Images were blindly graded by 2 cardiologists on a 5‐point scale (5, excellent). To quantitatively evaluate the reconstruction performance against images acquired without SMS, the MB =1 data were used to retrospectively simulate data acquired at MB factors of 2 to 4. Results: Analysis of the SMS point‐spread function for the desired slice showed that the proposed sampling strategy significantly canceled the main‐lobe energy of the other slices and has low side‐lobe energy resulting in an incoherent temporal aliasing pattern when rotated by the GA. Retrospective experiments demonstrated the SMS‐L1‐SPIRiT method removed aliasing from the interfering slices and showed excellent agreement with the ground‐truth MB =1 images. Clinical evaluation demonstrated high‐quality perfusion images with average image‐quality scores of 4.3 ± 0.5 (MB =2), 4.2 ± 0.5 (MB =3), and 4.4 ± 0.4 (MB =4) with no significant quality difference in image quality between MB factors (P = 0.38). Conclusion: SMS spiral perfusion at MB factors 2, 3, and 4 produces high‐quality perfusion images with whole‐heart coverage in a clinical setting with high sampling efficiency. [ABSTRACT FROM AUTHOR]
Copyright of Magnetic Resonance in Medicine is the property of Wiley-Blackwell 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: 133500185
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Whole‐heart spiral simultaneous multi‐slice first‐pass myocardial perfusion imaging.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Yang%22">Yang, Yang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Meyer%2C+Craig+H%2E%22">Meyer, Craig H.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Epstein%2C+Frederick+H%2E%22">Epstein, Frederick H.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kramer%2C+Christopher+M%2E%22">Kramer, Christopher M.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Salerno%2C+Michael%22">Salerno, Michael</searchLink><relatesTo>1,2,3</relatesTo><i> ms5pc@virginia.edu</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Magnetic+Resonance+in+Medicine%22">Magnetic Resonance in Medicine</searchLink>. Feb2019, Vol. 81 Issue 2, p852-862. 11p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: To develop and evaluate a simultaneous multislice (SMS) spiral perfusion pulse sequence with whole‐heart coverage. Methods: An orthogonal set of phase cycling angles following a Hadamard pattern was incorporated into a golden‐angle (GA) variable density spiral perfusion sequence to perform SMS imaging at different multiband (MB) factors. Images were reconstructed using an SMS extension of L1‐SPIRiT that we have termed SMS‐L1‐SPIRiT. The proposed sequence was evaluated in 40 subjects (10 each for MB factors of 1, 2, 3, and 4). Images were blindly graded by 2 cardiologists on a 5‐point scale (5, excellent). To quantitatively evaluate the reconstruction performance against images acquired without SMS, the MB =1 data were used to retrospectively simulate data acquired at MB factors of 2 to 4. Results: Analysis of the SMS point‐spread function for the desired slice showed that the proposed sampling strategy significantly canceled the main‐lobe energy of the other slices and has low side‐lobe energy resulting in an incoherent temporal aliasing pattern when rotated by the GA. Retrospective experiments demonstrated the SMS‐L1‐SPIRiT method removed aliasing from the interfering slices and showed excellent agreement with the ground‐truth MB =1 images. Clinical evaluation demonstrated high‐quality perfusion images with average image‐quality scores of 4.3 ± 0.5 (MB =2), 4.2 ± 0.5 (MB =3), and 4.4 ± 0.4 (MB =4) with no significant quality difference in image quality between MB factors (P = 0.38). Conclusion: SMS spiral perfusion at MB factors 2, 3, and 4 produces high‐quality perfusion images with whole‐heart coverage in a clinical setting with high sampling efficiency. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Magnetic Resonance in Medicine is the property of Wiley-Blackwell 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.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=133500185
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/mrm.27412
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 852
    Titles:
      – TitleFull: Whole‐heart spiral simultaneous multi‐slice first‐pass myocardial perfusion imaging.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Yang, Yang
      – PersonEntity:
          Name:
            NameFull: Meyer, Craig H.
      – PersonEntity:
          Name:
            NameFull: Epstein, Frederick H.
      – PersonEntity:
          Name:
            NameFull: Kramer, Christopher M.
      – PersonEntity:
          Name:
            NameFull: Salerno, Michael
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 02
              Text: Feb2019
              Type: published
              Y: 2019
          Identifiers:
            – Type: issn-print
              Value: 07403194
          Numbering:
            – Type: volume
              Value: 81
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: Magnetic Resonance in Medicine
              Type: main
ResultId 1