Evaluation of a novel 18 F-labeled positron-emission tomography perfusion tracer for the assessment of myocardial infarct size in rats

Hossam M. Sherif, Antti Saraste, Eliane Weidl, Axel W. Weber, Takahiro Higuchi, Sybille Reder, Thorsten Poethko, Gjermund Henriksen, David Casebier, Simon Robinson, Hans Jürgen Wester, Stephan G. Nekolla, Markus Schwaiger

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Background - The goal of this study was to evaluate a new 18 F-labeled positron-emission tomography (PET) perfusion tracer, 18 F BMS747158-02, for the assessment of myocardial infarct (MI) size. Methods and Results-Wistar rats were studied 24 hours after ligation of the left coronary artery either permanently (n= 15) or transiently (n= 16) for 30 minutes. Seven nonoperated rats were studied as controls. The rats were injected with 37 MBq of 18 F BMS747158-02 and imaged with a small animal PET scanner for 20 minutes. Polar maps were generated for measurement of PET defect size, and left ventricular systolic and diastolic volumes were assessed in gated images. As a reference, MI size was determined by 2,3,5-triphenyltetrazolium chloride staining of left ventricular tissue samples. Permanent or transient ligation of the left coronary artery produced transmural or subendocardial MI of variable sizes, respectively. In normal rats, PET imaging demonstrated intense and homogeneous uptake of 18 F BMS747158-02 throughout the myocardium. After ligation, sharply defined perfusion defects were present. Throughout the imaging period, the defect size correlated closely with the MI size either after permanent (r=0.88; P<0.01; mean difference, 1.86%) or transient (r=0.92; P<0.01; mean difference, 2.16%) ligation of the left coronary artery. Moreover, reduction of left ventricular systolic function measured with PET correlated with the MI size (r=-0.81; P<0.01; n=23). Conclusions-Myocardial 18 F BMS747158-02 PET imaging provides excellent image quality and uptake properties, enabling accurate evaluation of MI size and left ventricular function in rats. It is a promising technique for evaluation of MI size in clinical trials.

Original languageEnglish
Pages (from-to)77-84
Number of pages8
JournalCirculation: Cardiovascular Imaging
Volume2
Issue number2
DOIs
Publication statusPublished - Mar 1 2009
Externally publishedYes

Fingerprint

Positron-Emission Tomography
Perfusion
Myocardial Infarction
Ligation
Coronary Vessels
Left Ventricular Function
Wistar Rats
Myocardium
Clinical Trials
Staining and Labeling
BMS 747158-02

Keywords

  • F BMS747158-02
  • Cardiac PET
  • Myocardial infarction
  • Perfusion
  • TTC staining

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

Evaluation of a novel 18 F-labeled positron-emission tomography perfusion tracer for the assessment of myocardial infarct size in rats . / Sherif, Hossam M.; Saraste, Antti; Weidl, Eliane; Weber, Axel W.; Higuchi, Takahiro; Reder, Sybille; Poethko, Thorsten; Henriksen, Gjermund; Casebier, David; Robinson, Simon; Wester, Hans Jürgen; Nekolla, Stephan G.; Schwaiger, Markus.

In: Circulation: Cardiovascular Imaging, Vol. 2, No. 2, 01.03.2009, p. 77-84.

Research output: Contribution to journalArticle

Sherif, HM, Saraste, A, Weidl, E, Weber, AW, Higuchi, T, Reder, S, Poethko, T, Henriksen, G, Casebier, D, Robinson, S, Wester, HJ, Nekolla, SG & Schwaiger, M 2009, ' Evaluation of a novel 18 F-labeled positron-emission tomography perfusion tracer for the assessment of myocardial infarct size in rats ', Circulation: Cardiovascular Imaging, vol. 2, no. 2, pp. 77-84. https://doi.org/10.1161/CIRCIMAGING.108.815423
Sherif, Hossam M. ; Saraste, Antti ; Weidl, Eliane ; Weber, Axel W. ; Higuchi, Takahiro ; Reder, Sybille ; Poethko, Thorsten ; Henriksen, Gjermund ; Casebier, David ; Robinson, Simon ; Wester, Hans Jürgen ; Nekolla, Stephan G. ; Schwaiger, Markus. / Evaluation of a novel 18 F-labeled positron-emission tomography perfusion tracer for the assessment of myocardial infarct size in rats In: Circulation: Cardiovascular Imaging. 2009 ; Vol. 2, No. 2. pp. 77-84.
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abstract = "Background - The goal of this study was to evaluate a new 18 F-labeled positron-emission tomography (PET) perfusion tracer, 18 F BMS747158-02, for the assessment of myocardial infarct (MI) size. Methods and Results-Wistar rats were studied 24 hours after ligation of the left coronary artery either permanently (n= 15) or transiently (n= 16) for 30 minutes. Seven nonoperated rats were studied as controls. The rats were injected with 37 MBq of 18 F BMS747158-02 and imaged with a small animal PET scanner for 20 minutes. Polar maps were generated for measurement of PET defect size, and left ventricular systolic and diastolic volumes were assessed in gated images. As a reference, MI size was determined by 2,3,5-triphenyltetrazolium chloride staining of left ventricular tissue samples. Permanent or transient ligation of the left coronary artery produced transmural or subendocardial MI of variable sizes, respectively. In normal rats, PET imaging demonstrated intense and homogeneous uptake of 18 F BMS747158-02 throughout the myocardium. After ligation, sharply defined perfusion defects were present. Throughout the imaging period, the defect size correlated closely with the MI size either after permanent (r=0.88; P<0.01; mean difference, 1.86{\%}) or transient (r=0.92; P<0.01; mean difference, 2.16{\%}) ligation of the left coronary artery. Moreover, reduction of left ventricular systolic function measured with PET correlated with the MI size (r=-0.81; P<0.01; n=23). Conclusions-Myocardial 18 F BMS747158-02 PET imaging provides excellent image quality and uptake properties, enabling accurate evaluation of MI size and left ventricular function in rats. It is a promising technique for evaluation of MI size in clinical trials.",
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AU - Weber, Axel W.

AU - Higuchi, Takahiro

AU - Reder, Sybille

AU - Poethko, Thorsten

AU - Henriksen, Gjermund

AU - Casebier, David

AU - Robinson, Simon

AU - Wester, Hans Jürgen

AU - Nekolla, Stephan G.

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