Abstract:
BACKGROUND:Sixty-four-slice multidetector spiral computed tomography (CT) has improved temporal resolution and reduced acquisition time. We aimed to evaluate the functional analysis using 64-slice CT comparing with echocardiography, electrocardiographically gated single-photon emission tomography (SPECT) and cardiovascular magnetic resonance (CMR). METHODS:Six-three patients (77.4+/-18.6 bpm) underwent 64-slice CT and CMR (echocardiography in 55; SPECT in 33) within 2 weeks were retrospectively reviewed. The left ventricular volumetric data from different methods were compared with CMR. Regional wall motion was compared between CT and CMR in a 17-segment and 4-point system (1=normal to 4=akinesis/dyskinesis). RESULTS:Ejection fraction (EF), end-diastolic volume (EDV) and end-systolic volume (ESV) by CT agreed well with CMR (bias+/-SD, -0.22%+/-4.18, r=0.97;-0.59 mL+/-15.21, r=0.98; 1.09 mL+/-10.61, r=0.99) over a wide range of left ventricular (LV) function (EF 18-76% by CMR). Our results also showed good correlation of EF measured by CT and echocardiography (r=0.87) or SPECT (r=0.91, all P<0.0001); however, standard deviation of EF difference between CT and CMR was significantly less than echocardiography or SPECT (P<0.005). For regional wall motion, an exact agreement of 97% (kappa=0.91) was found between CT and CMR. CONCLUSION:Sixty-four-slice CT agreed well with CMR in LV function assessment, and had a superior accuracy than echocardiography and SPECT on EF estimation. Sixty-four-slice CT is considered a clinically acceptable and robust method to evaluate LV function.
journal_name
Int J Cardioljournal_title
International journal of cardiologyauthors
Wu YW,Tadamura E,Yamamuro M,Kanao S,Okayama S,Ozasa N,Toma M,Kimura T,Komeda M,Togashi Kdoi
10.1016/j.ijcard.2007.06.017subject
Has Abstractpub_date
2008-08-01 00:00:00pages
69-76issue
1eissn
0167-5273issn
1874-1754pii
S0167-5273(07)01087-Xjournal_volume
128pub_type
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journal_title:International journal of cardiology
pub_type: 杂志文章,多中心研究
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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更新日期:2010-03-04 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2015-03-15 00:00:00
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更新日期:1982-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2009-07-10 00:00:00
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pub_type: 信件
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pub_type: 杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章,评审
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pub_type: 信件
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