Left ventricular function and volumes from gated [13N]-ammonia positron emission tomography myocardial perfusion imaging: A prospective head-to-head comparison against CMR ... View Full Text


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Article Info

DATE

2022-07-11

AUTHORS

Alexander Maurer, Aleksandra Sustar, Andreas A. Giannopoulos, Hannes Grünig, Adam Bakula, Dimitri Patriki, Elia von Felten, Michael Messerli, Aju P. Pazhenkottil, Catherine Gebhard, Philipp A. Kaufmann, Ronny R. Buechel, Tobias A. Fuchs

ABSTRACT

BackgroundPositron emission tomography (PET) myocardial perfusion imaging (MPI) can be used to evaluate left ventricular (LV) volumes and function. We performed a head-to-head comparison of LV function and volumes obtained simultaneously using [13N]-ammonia-PET and cardiac magnetic resonance (CMR), with the latter serving as the reference standard.Methods and ResultsIn this prospective study, 51 patients underwent [13N]-ammonia-PET MPI and CMR using a hybrid PET/MR device. Left ventricular end-systolic volumes (LVESV), end-diastolic volumes (LVEDV), stroke volumes (LVSV), ejection fractions (LVEF), and segmental wall motion were analyzed for both methods and were compared using correlational and Bland-Altman (BA) analysis; segmental wall motion was compared using ANOVA. The agreement between [13N]-ammonia-PET and CMR for LVEF was good, with minimal bias (− .6%) and narrow BA limits of agreement (− 7.9% to 6.8%), but [13N]-ammonia-PET systematically underestimated LV volumes, with high bias in LVESV (− 11.2 ml), LVEDV (− 28.9 ml), and LVSV (− 17.5 ml). Mean segmental wall motion in [13N]-ammonia-PET differed significantly among the corresponding normokinetic (6.6 ± 2 mm), hypokinetic (5.1 ± 2 mm), and akinetic (3.3 ± 2 mm) segments in CMR (P < .01).ConclusionLVEF and LV wall motion can be accurately assessed using [13N]-ammonia-PET MPI, although LV volumes are significantly underestimated compared to CMR. More... »

PAGES

1-10

References to SciGraph publications

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    17 schema:description BackgroundPositron emission tomography (PET) myocardial perfusion imaging (MPI) can be used to evaluate left ventricular (LV) volumes and function. We performed a head-to-head comparison of LV function and volumes obtained simultaneously using [13N]-ammonia-PET and cardiac magnetic resonance (CMR), with the latter serving as the reference standard.Methods and ResultsIn this prospective study, 51 patients underwent [13N]-ammonia-PET MPI and CMR using a hybrid PET/MR device. Left ventricular end-systolic volumes (LVESV), end-diastolic volumes (LVEDV), stroke volumes (LVSV), ejection fractions (LVEF), and segmental wall motion were analyzed for both methods and were compared using correlational and Bland-Altman (BA) analysis; segmental wall motion was compared using ANOVA. The agreement between [13N]-ammonia-PET and CMR for LVEF was good, with minimal bias (− .6%) and narrow BA limits of agreement (− 7.9% to 6.8%), but [13N]-ammonia-PET systematically underestimated LV volumes, with high bias in LVESV (− 11.2 ml), LVEDV (− 28.9 ml), and LVSV (− 17.5 ml). Mean segmental wall motion in [13N]-ammonia-PET differed significantly among the corresponding normokinetic (6.6 ± 2 mm), hypokinetic (5.1 ± 2 mm), and akinetic (3.3 ± 2 mm) segments in CMR (P < .01).ConclusionLVEF and LV wall motion can be accurately assessed using [13N]-ammonia-PET MPI, although LV volumes are significantly underestimated compared to CMR.
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    21 schema:keywords ANOVA
    22 BA limits
    23 Bland-Altman analysis
    24 LV function
    25 LV volumes
    26 LV wall motion
    27 LVEDV
    28 LVEF
    29 LVSV
    30 MR devices
    31 ResultsIn
    32 agreement
    33 akinetic segments
    34 ammonia PET
    35 analysis
    36 bias
    37 cardiac magnetic resonance
    38 comparison
    39 devices
    40 ejection fraction
    41 end-diastolic volume
    42 end-systolic volume
    43 fraction
    44 function
    45 head
    46 head comparison
    47 high bias
    48 imaging
    49 left ventricular end-systolic volume
    50 left ventricular function
    51 left ventricular volume
    52 limit
    53 magnetic resonance
    54 method
    55 minimal bias
    56 motion
    57 myocardial perfusion
    58 myocardial perfusion imaging
    59 patients
    60 perfusion
    61 perfusion imaging
    62 positron emission tomography myocardial perfusion
    63 prospective head
    64 prospective study
    65 reference standard
    66 resonance
    67 segmental wall motion
    68 segments
    69 standards
    70 stroke volume
    71 study
    72 tomography myocardial perfusion
    73 tomography myocardial perfusion imaging
    74 ventricular end-systolic volume
    75 ventricular function
    76 ventricular volume
    77 volume
    78 wall motion
    79 schema:name Left ventricular function and volumes from gated [13N]-ammonia positron emission tomography myocardial perfusion imaging: A prospective head-to-head comparison against CMR using a hybrid PET/MR device
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