Myocardial T1 and ECV Measurement
نویسندگان
چکیده
منابع مشابه
Myocardial T1 and ECV mapping: how we optimise technical aspects of acquisition
Background MOLLI techniques for the acquisition of T1 maps in the heart are becoming routine practice at many centres. A wide range of techniques and scanning protocols exist in order to produce reproducible and accurate T1 maps [review in Radiographics, consensus paper James Moon]. However, familiarity and experience using these protocols may be limited outside dedicated CMR units. Our aim is ...
متن کاملA medical device-grade T1 and ECV phantom for global T1 mapping quality assurance—the T1 Mapping and ECV Standardization in cardiovascular magnetic resonance (T1MES) program
BACKGROUND T1 mapping and extracellular volume (ECV) have the potential to guide patient care and serve as surrogate end-points in clinical trials, but measurements differ between cardiovascular magnetic resonance (CMR) scanners and pulse sequences. To help deliver T1 mapping to global clinical care, we developed a phantom-based quality assurance (QA) system for verification of measurement stab...
متن کاملA T1 and ECV phantom for global T1 mapping quality assurance: The T1 mapping and ECV standardisation in CMR (T1MES) program
Background Myocardial T1 and extracellular volume (ECV) estimates have applications in a range of myocardial diseases. Factors responsible for systematic inaccuracies in T1 mapping are beginning to be known but little is known about its delivery at ‘health-care system’ scale and there is no global quality assurance (QA) system. Agarose phantoms are common in MRI and nickel ions preferred for lo...
متن کاملReproducibility of multiple T1 Mapping techniques and to ECV quantification
Background T1 Mapping has emerged as a new marker to quantify myocardial extracellular volume (ECV), which is typically increased in the setting of diffuse fibrosis or infiltrative heart diseases. However the reproducibility of the technique is largely unknown. We sought to identify the interobserver, intraobserver variability of different T1 mapping techniques as well as validation of one tech...
متن کاملPrecision and reproducibility of blood T1 estimation: implications of T1 star on ECV calculation
Background Extracellular volume fraction (ECV) calculation requires myocardial and blood T1 measurements to be acquired preand post-contrast administration. T1 star (T1*) may offer a more accurate estimation of blood pool T1 as it avoids look-locker correction, and so is theoretically a more robust measure of blood T1 where fresh spins are flowing into the image plane. Reproducibility of blood ...
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ژورنال
عنوان ژورنال: JACC: Cardiovascular Imaging
سال: 2019
ISSN: 1936-878X
DOI: 10.1016/j.jcmg.2019.06.031