Document Detail


Simultaneous assessment of myocardial free fatty acid utilization and left ventricular function using 123I-BMIPP-gated SPECT.
MedLine Citation:
PMID:  10565779     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study was designed to evaluate the methodological feasibility of 123I-labeled beta-methyl-p-iodophenyl-pentadecanoic acid (BMIPP)-gated SPECT to assess regional and global left ventricular (LV) function in comparison with 99mTc-sestamibi (methoxyisobutyl isonitrile [MIBI])-gated SPECT and first-pass radionuclide angiography (FPRNA). METHODS: Forty-four patients with stable coronary artery disease underwent rest BMIPP-gated SPECT (111 MBq, 60 s/step) and rest MIBI-gated SPECT (600 MBq, 40 s/step) within a week. From both gated SPECT studies, regional defect scores (DS), wall motion scores (WMS) and wall-thickening scores (WTS) were evaluated visually using 4-point scales for nine segments, and LV ejection fraction (EF) (%) was automatically calculated using Quantitative Gated SPECT (QGS) software. FPRNA was also performed on injection of MIBI. RESULTS: Exact agreement between the two gated SPECT studies was 84.1% (kappa = 0.706, r = 0.907, P < 0.0001) in WMS and 87.1% (kappa = 0.662, r = 0.884, P < 0.0001) in WTS. LVEF obtained from BMIPP-gated SPECT linearly correlated with those from MIBI-gated SPECT (y = -0.27 + 0.944x, r = 0.948, SEE = 5.00, P < 0.0001) and FPRNA (y = -7.32 + 1.042x, r = 0.919, SEE = 6.19, P < 0.0001). Even in 21 patients with mismatch segments (BMIPP DS > MIBI DS), agreement was considered to be acceptable in WMS (81.5%, kappa = 0.707, r = 0.853, P < 0.0001) and in WTS (76.7%, kappa = 0.526, r = 0.754, P < 0.0001), and correlation in LVEF remained good between BMIPP-gated SPECT and MIBI-gated SPECT (y = -1.24 + 0.955x, r = 0.938, SEE = 6.25, P < 0.0001) or FPRNA (y = -6.03 + 1.024x, r = 0.913, SEE = 7.38, P < 0.0001). CONCLUSION: BMIPP-gated SPECT can evaluate regional and global LV function with the QGS software. Therefore, BMIPP-gated SPECT offers the opportunity for simultaneous assessment of myocardial free fatty acid utilization and LV function.
Authors:
M Inubushi; E Tadamura; T Kudoh; N Hattori; S Kubo; T Koshiji; K Nishimura; M Komeda; N Tamaki; J Konishi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of nuclear medicine : official publication, Society of Nuclear Medicine     Volume:  40     ISSN:  0161-5505     ISO Abbreviation:  J. Nucl. Med.     Publication Date:  1999 Nov 
Date Detail:
Created Date:  1999-12-09     Completed Date:  1999-12-09     Revised Date:  2006-05-06    
Medline Journal Info:
Nlm Unique ID:  0217410     Medline TA:  J Nucl Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1840-7     Citation Subset:  IM    
Affiliation:
Department of Nuclear Medicine and Diagnostic Imaging, Kyoto University Faculty of Medicine, Japan.
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MeSH Terms
Descriptor/Qualifier:
Aged
Coronary Disease / physiopathology,  radionuclide imaging
Fatty Acids / diagnostic use*,  metabolism*
Feasibility Studies
Female
Humans
Iodine Radioisotopes / diagnostic use*
Iodobenzenes / diagnostic use*
Male
Myocardium / metabolism*
Radiopharmaceuticals / diagnostic use
Software
Technetium Tc 99m Sestamibi / diagnostic use
Tomography, Emission-Computed, Single-Photon / methods*
Ventricular Function, Left / physiology*
Ventriculography, First-Pass
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Iodine Radioisotopes; 0/Iodobenzenes; 0/Radiopharmaceuticals; 109581-73-9/Technetium Tc 99m Sestamibi; 116754-87-1/iodofiltic acid

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