Use of [11C]acetate and [15O]O2 PET for the assessment of myocardial oxygen utilization in patients with chronic myocardial infarction

Use of [11C]acetate and [15O]O2 PET for the assessment of myocardial oxygen utilization in patients with chronic myocardial infarction
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使用[11C]乙酸盐和[15O]O2 PET评估慢性心肌梗死患者的心肌氧利用

DOI:
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发表时间:
2001
期刊:
European Journal of Nuclear Medicine
影响因子:
--
通讯作者:
L. Voipio‐Pulkki
L. Voipio‐Pulkki
中科院分区:
--
文献类型:
--
作者:
H. Ukkonen;J. Knuuti;C. Katoh;H. Iida;H. Sipilä;P. Lehikoinen;K. Någren;L. Voipio‐Pulkki

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~(11)C-醋酸盐正电子发射断层扫描(PET)已被广泛用于评价心脏局部氧化代谢。然而,[11C]乙酸乙酯正电子发射计算机断层扫描在评估梗死心肌氧化代谢方面的准确性仍然存在争议。对13例稳定性冠心病和陈旧性心肌梗死患者进行了研究。以15O为基础的正电子发射计算机断层扫描研究得到了局部血流量(rMBF,ml/min/g)和氧耗(rMMRO2,ml/min/g),并与rMBF≥为正常参考节段的75%(A组)、50%-74%(B组)或50%(C组)的心肌清除速率常数(Kmono)进行了比较。A组平均MBF为0.96±0.08,B组为0.67±0.06,C组为0.42±0.07。节段rMMRO2与kmono呈线性相关(r=0.89,P<0.001,y=0.61x+0.026)。A组和B组的kmono/rMMRO2比值相近(0.99±0.19vs1.07±0.21,P=NS)。而C组节段的这一比例显著高于C组(1.2 8±0.35,P=0.037)。[11C]乙酸酯的kmono与吸入[15O]O2测定的rMMRO2呈线性相关。然而,在低流量地区,kmono方法似乎比[150]O2方法产生更高的rMMRO2估计值。
Carbon-11 acetate positron emission tomography (PET) has been widely used to assess regional oxidative metabolism of the heart. However, the accuracy of [11C]acetate PET in assessing oxidative metabolism in infarcted myocardium remains controversial. Thirteen patients with stable coronary artery disease and old myocardial infarction were studied. The 15O-based PET studies yielded regional blood flow (rMBF, ml/min/g) and oxygen consumption (rMMRO2, ml/min/g), which was compared with the myocardial clearance rate constant (kmono) of [11C]acetate in segments with rMBF≥75% (group A), 50%–74% (group B) or <50% (group C) of the normal reference segment. Mean MBF was 0.96±0.08 ml/g/min in group A, 0.67±0.06 ml/g/min in group B and 0.42±0.07 ml/g/min in group C segments. The segmental rMMRO2 correlated linearly with kmono (r=0.89, P<0.001, y=0.61x+0.026). The kmono/rMMRO2 ratio was comparable in the group A and B segments (0.99±0.19 vs 1.07±0.21, P=NS). However, the ratio was significantly higher in the group C segments (1.28±0.35, P=0.037). It is concluded that kmono of [11C]acetate correlates linearly with rMMRO2 determined by [15O]O2 inhalation. However, kmono appears to yield higher rMMRO2 estimates than the [15O]O2 method in low-flow areas.
通过正电子发射断层扫描与碳 11 醋酸盐对心肌梗死患者局部心肌耗氧量进行无创评估。
DOI: --
发表时间: 1989
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
Walsh,MN;Geltman,EM;Brown,MA;Henes,CG;Weinheimer,CJ;Sobel,BE;Bergmann,SR
通讯作者: Bergmann,SR
尽管底物利用模式改变,但用碳 11 醋酸盐和正电子发射断层扫描评估心肌氧化代谢的有效性。
DOI: --
发表时间: 1989
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
Brown,MA;Myears,DW;Bergmann,SR
通讯作者: Bergmann,SR
用正电子发射断层扫描和醋酸碳 11 评估心肌氧化代谢储备。
DOI: --
发表时间: 1989
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
Henes,CG;Bergmann,SR;Walsh,MN;Sobel,BE;Geltman,EM
通讯作者: Geltman,EM
DOI: 10.1161/01.cir.76.3.687
发表时间: 1987-09-01
期刊: CIRCULATION
影响因子: 37.8
作者:
BROWN, M;MARSHALL, DR;BERGMANN, SR
通讯作者: BERGMANN, SR