Document Detail

Evaluation of left ventricular function with cardiac magnetic resonance imaging using Fourier fitting.
MedLine Citation:
PMID:  17145405     Owner:  NLM     Status:  MEDLINE    
The aims of this study were to investigate the applicability of Fourier fitting in the magnetic resonance (MR) evaluation of left ventricular (LV) function and to determine the optimal number of harmonics for fitting. Cine cardiac MR imaging was performed in 10 subjects, and an LV time-volume curve was generated. Fourier fitting was applied to the original curve using 1-10 harmonics, and the qualities of the time-volume curve and first-derivative curve were evaluated. LV functional parameters were calculated from curves generated with and without fitting. The quality of the original time-volume curve was good, and Fourier fitting had no substantial effect on functional parameters obtained directly from the time-volume curve such as ejection fraction. The first-derivative curve generated without fitting showed substantial artificial fluctuation. The application of Fourier fitting depressed the fluctuation and tended to decrease estimates of peak ejection rate and peak filling rate. Five or six harmonics appeared to be appropriate for obtaining a high-quality first-derivative curve. In conclusion, Fourier fitting was indicated to aid in reducing the artificial fluctuation of the first-derivative curve generated from cine cardiac MR imaging and to contribute to the evaluation of functional parameters derived from the first-derivative curve.
Yukihiro Nomura; Yusuke Inoue; Ikuo Yokoyama; Takashi Nakaoka; Daisuke Itoh; Toshiyuki Okubo; Kuni Ohtomo
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Publication Detail:
Type:  Journal Article     Date:  2006-10-05
Journal Detail:
Title:  Magnetic resonance imaging     Volume:  24     ISSN:  0730-725X     ISO Abbreviation:  Magn Reson Imaging     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-05     Completed Date:  2007-03-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8214883     Medline TA:  Magn Reson Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1333-9     Citation Subset:  IM    
Department of Radiology, Institute of Medical Science, University of Tokyo, and Department of Cardiovascular Medicine, Sanno Hospital, Tokyo 108-8639, Japan.
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MeSH Terms
Antineoplastic Agents / adverse effects
Fourier Analysis*
Lymphoproliferative Disorders / drug therapy,  pathology,  physiopathology*
Magnetic Resonance Imaging, Cine / methods*
Middle Aged
Ventricular Dysfunction, Left / chemically induced,  diagnosis*
Ventricular Function, Left*
Reg. No./Substance:
0/Antineoplastic Agents

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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