Bressan RA, Erlandsson K, Mulligan RS, Gunn RN, Cunningham VJ, Owens J, Cullum ID, Ell PJ, Pilowsky LS. A bolus/infusion paradigm for the novel NMDA receptor SPET tracer [123i]CNS 1261.
Nucl Med Biol 2004;
31:155-64. [PMID:
15013480 DOI:
10.1016/j.nucmedbio.2003.08.008]
[Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2003] [Revised: 07/29/2003] [Accepted: 08/02/2003] [Indexed: 10/26/2022]
Abstract
We have previously performed quantitative kinetic modeling of [(123)I]CNS 1261, a new SPET ligand for the MK801 intrachannel site of the NMDA receptor. We now report a bolus-infusion protocol, which eliminates the need for arterial blood sampling. Dynamic SPET scanning and venous blood sampling were performed in 7 healthy volunteers. Good agreement was obtained between kinetic and equilibrium analysis. SPET scanning with a bolus-infusion protocol is a valid method to estimate the total volume of distribution for [(123)I]CNS 1261 in clinical populations.
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