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  • Ahlander, Britt-Marie,1954-Örebro universitet,Institutionen för hälsovetenskaper,Department of Radiology, Ryhov County Hospital, Jönköping, Sweden (author)

An echo-planar imaging sequence is superior to a steady-state free precession sequence for visual as well as quantitative assessment of cardiac magnetic resonance stress perfusion

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2015-07-04
  • Blackwell Publishing,2017
  • electronicrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:oru-72073
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-72073URI
  • https://doi.org/10.1111/cpf.12267DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-34807URI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:134866231URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130795URI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Funding agencies: Medical Research Council of Southeast Sweden [12437]; Futurum, the County council of Jonkoping [12440, 81851, 217261]; Linkoping University; County Council of Ostergotland [281281]; Swedish Heart-Lung Foundation [20120449]
  • BACKGROUND: To assess myocardial perfusion, steady-state free precession cardiac magnetic resonance (SSFP, CMR) was compared with gradient-echo-echo-planar imaging (GRE-EPI) using myocardial perfusion scintigraphy (MPS) as reference.METHODS: Cardiac magnetic resonance perfusion was recorded in 30 patients with SSFP and in another 30 patients with GRE-EPI. Timing and extent of inflow delay to the myocardium was visually assessed. Signal-to-noise (SNR) and contrast-to-noise (CNR) ratios were calculated. Myocardial scar was visualized with a phase-sensitive inversion recovery sequence (PSIR). All scar positive segments were considered pathologic. In MPS, stress and rest images were used as in clinical reporting. The CMR contrast wash-in slope was calculated and compared with the stress score from the MPS examination. CMR scar, CMR perfusion and MPS were assessed separately by one expert for each method who was blinded to other aspects of the study.RESULTS: Visual assessment of CMR had a sensitivity for the detection of an abnormal MPS at 78% (SSFP) versus 91% (GRE-EPI) and a specificity of 58% (SSFP) versus 84% (GRE-EPI). Kappa statistics for SSFP and MPS was 0·29, for GRE-EPI and MPS 0·72. The ANOVA of CMR perfusion slopes for all segments versus MPS score (four levels based on MPS) had correlation r = 0·64 (SSFP) and r = 0·96 (GRE-EPI). SNR was for normal segments 35·63 ± 11·80 (SSFP) and 17·98 ± 8·31 (GRE-EPI), while CNR was 28·79 ± 10·43 (SSFP) and 13·06 ± 7·61 (GRE-EPI).CONCLUSION: GRE-EPI displayed higher agreement with the MPS results than SSFP despite significantly lower signal intensity, SNR and CNR.

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  • Maret, EvaKarolinska Institutet,Department of Radiology, Ryhov County Hospital, Jönköping / Department of Clinical Physiology, Karolinska University Hospital, Stockholm(Swepub:liu)evama11 (author)
  • Brudin, LarsDepartment of Clinical Physiology, Kalmar County Hospital, Kalmar, Sweden (author)
  • Starck, Sven-AkeJönköping University,HHJ, Avdelningen för naturvetenskap och biomedicin,Department of Oncology, Hospital Physics, Ryhov County Hospital, Jönköping, Sweden,Department of Natural Science and Biomedicine, School of Health Sciences, Jönköping University / Department of Oncology, Hospital Physics, Ryhov County Hospital, Jönköping (author)
  • Engvall, JanLinköpings universitet,Avdelningen för kardiovaskulär medicin,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinska fakulteten,Region Östergötland, Fysiologiska kliniken US(Swepub:liu)janen74 (author)
  • Örebro universitetInstitutionen för hälsovetenskaper (creator_code:org_t)

Related titles

  • In:Clinical Physiology and Functional Imaging: Blackwell Publishing37:1, s. 52-611475-09611475-097X

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Brudin, Lars
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Engvall, Jan
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Örebro University
Jönköping University
Karolinska Institutet
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