Simultaneous assessment of left ventricular mechanical dyssynchrony using integrated 13 N-ammonia PETMR system: direct comparison of PET phase analysis and MR feature tracking

To compare phase analysis with positron emission tomography (PA) and magnetic resonance feature tracking derived myocardial strain (FT) for left ventricular (LV) mechanical dyssynchrony using PETMR system in patients with ischemic heart disease. Patients who underwent rest-pharmacological stress N a...

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Bibliographic Details
Published in:Journal of nuclear cardiology 2023-10, Vol.30 (5), p.1947
Main Authors: Fukushima, Kenji, Endo, Keiichiro, Yamakuni, Ryo, Kiko, Takatoyo, Sekino, Hirofumi, Kikori, Katsuyuki, Ukon, Naoyuki, Ishii, Shiro, Yamaki, Takayoshi, Ito, Hiroshi, Takeishi, Yasuchika
Format: Article
Language:English
Subjects:
Ammonia
Humans
Magnetic Resonance Imaging - methods
Magnetic Resonance Imaging, Cine - methods
Positron-Emission Tomography
Predictive Value of Tests
Reproducibility of Results
Ventricular Dysfunction, Left - diagnostic imaging
Ventricular Function, Left
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Summary:To compare phase analysis with positron emission tomography (PA) and magnetic resonance feature tracking derived myocardial strain (FT) for left ventricular (LV) mechanical dyssynchrony using PETMR system in patients with ischemic heart disease. Patients who underwent rest-pharmacological stress N ammonia PETMR were enrolled. Histogram bandwidth (BW) and phase standard deviation (PSD) were compared to global longitudinal, long axis radial, short axis circumferential, and radial strain (GLS, GRS, SA Circ, and SA Rad) obtained from FT. LV dyssynchrony index (SDI) derived from PA and FT were compared. BW and PSD showed significant correlations with FT (a Pearson's coefficient r = 0.64, P 
ISSN:1532-6551