Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2010
In vivo imaging of macrophage activity in the coronary arteries using 68Ga-DOTATATE PET/CT: correlation with coronary calcium burden and risk factors.
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Rominger Axel, Saam Tobias, Vogl Eva, Ubleis Christopher, la Fougère Christian, Förster Stefan, Haug Alexander, Cumming Paul, Reiser Maximilian F, Nikolaou Konstantin, Bartenstein Peter, Hacker Marcus
Аннотация
UNLABELLED: We measured the uptake of the somatostatin receptor ligand (68)Ga-[1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid]-D-Phe(1),Tyr(3)-octreotate (DOTATATE) in the left anterior descending coronary artery (LAD) in association with calcified plaques (CPs) and cardiovascular risk factors.
METHODS: Seventy consecutive tumor patients were examined by whole-body (68)Ga-DOTATATE contrast-enhanced PET/CT. Blood-pool-corrected standardized uptake value (target-to-background ratio) was measured in the LAD, and CT images were used to detect CP. Cardiovascular risk factors and history of prior cardiovascular events were recorded.
RESULTS: (68)Ga-DOTATATE uptake was detectable in the LAD of all patients. Target-to-background ratio in the LAD correlated significantly with the presence of CP (R = 0.34; P < 0.01), prior vascular events (R = 0.26; P < 0.05), and male sex (R = 0.29; P < 0.05), whereas CP correlated with these parameters but also with age (R = 0.34; P < 0.01) and hypertension (R = 0.25; P < 0.05).
CONCLUSION: In a series of oncologic patients, those with prior cardiovascular events and calcified atherosclerotic plaques showed significantly increased (68)Ga-DOTATATE uptake in the LAD, suggesting a potential role of this tracer for plaque imaging in the coronary arteries.
METHODS: Seventy consecutive tumor patients were examined by whole-body (68)Ga-DOTATATE contrast-enhanced PET/CT. Blood-pool-corrected standardized uptake value (target-to-background ratio) was measured in the LAD, and CT images were used to detect CP. Cardiovascular risk factors and history of prior cardiovascular events were recorded.
RESULTS: (68)Ga-DOTATATE uptake was detectable in the LAD of all patients. Target-to-background ratio in the LAD correlated significantly with the presence of CP (R = 0.34; P < 0.01), prior vascular events (R = 0.26; P < 0.05), and male sex (R = 0.29; P < 0.05), whereas CP correlated with these parameters but also with age (R = 0.34; P < 0.01) and hypertension (R = 0.25; P < 0.05).
CONCLUSION: In a series of oncologic patients, those with prior cardiovascular events and calcified atherosclerotic plaques showed significantly increased (68)Ga-DOTATATE uptake in the LAD, suggesting a potential role of this tracer for plaque imaging in the coronary arteries.
Предметные рубрики MeSH
AdultAgedAged, 80 and overCalciumCoronary AngiographyCoronary Artery DiseaseCoronary VesselsFemaleGallium RadioisotopesHumansMacrophagesMaleMiddle AgedNeuroendocrine TumorsOrganometallic CompoundsPositron-Emission TomographyRadiopharmaceuticalsRetrospective StudiesRisk FactorsTomography, X-Ray Computed