Time-frame sampling for 82Rb PET flow quantification: Towards standardization of clinical protocols
نویسندگان
چکیده
منابع مشابه
Quantification of Myocardial Blood Flow in€Absolute Terms Using 82Rb PET Imaging
Fro Ev xR {S **C Mi Nu Ca Un Fin Tu Mi 17) QP rec ser an IN OBJECTIVES The purpose of this study was to compare myocardial blood flow (MBF) and myocardial flow reserve (MFR) estimates from rubidium-82 positron emission tomography (Rb PET) data using 10 software packages (SPs) based on 8 tracer kinetic models. BACKGROUND It is unknown how MBF and MFR values from existing SPs agree for Rb PET. ME...
متن کاملTime-resolved Blood Flow Quantification with Ungated Radial Sampling
Introduction Quantitative information on blood flow such as peak forward-velocity and average acceleration in the femoral/popliteal artery can provide clinical information on peripheral arterial disease (PAD) [1]. The most common approach to time-resolved pulsatile blood flow quantification by MRI relies on gated Cartesian scanning [2]. Gated acquisition is susceptible to ghosting flow artifact...
متن کاملQuantification of myocardial blood flow with 82Rb: Validation with 15O-water using time-of-flight and point-spread-function modeling
BACKGROUND We quantified myocardial blood flow with (82)Rb PET using parameters of the generalized Renkin-Crone model estimated from (82)Rb and (15)O-water images reconstructed with time-of-flight and point spread function modeling. Previous estimates of rubidium extraction have used older-generation scanners without time-of-flight or point spread function modeling. We validated image-derived i...
متن کاملOptimally Repeatable Kinetic Model Variant for Myocardial Blood Flow Measurements with 82Rb PET
Purpose. Myocardial blood flow (MBF) quantification with 82Rb positron emission tomography (PET) is gaining clinical adoption, but improvements in precision are desired. This study aims to identify analysis variants producing the most repeatable MBF measures. Methods. 12 volunteers underwent same-day test-retest rest and dipyridamole stress imaging with dynamic 82Rb PET, from which MBF was quan...
متن کاملRepeatability of rest and hyperemic myocardial blood flow measurements with 82Rb dynamic PET.
UNLABELLED The repeatability of rest and hyperemic myocardial blood flow (MBF) measurements using 82Rb PET has not been evaluated. The aim of this study was to investigate the short-term repeatability of such measurements. METHODS Fifteen healthy volunteers underwent rest and pharmacologic stress 82Rb PET, repeated 60 min apart. RESULTS There was no significant difference in repeated rest M...
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ژورنال
عنوان ژورنال: Journal of Nuclear Cardiology
سال: 2017
ISSN: 1071-3581,1532-6551
DOI: 10.1007/s12350-017-0981-1