Longitudinal stability of gel T1 MRI Phantoms for quality assurance of T1 mapping
نویسندگان
چکیده
منابع مشابه
Longitudinal stability of gel T1 MRI Phantoms for quality assurance of T1 mapping
Background Quantification of interstitial (diffuse) myocardial fibrosis by T1 mapping may prove useful in a range of conditions. Both native T1 maps and extracellular volume fraction (ECV) are being increasingly used clinically and have been shown to be sensitive to a wide range of conditions and associate with worse prognosis. However, quality control by T1 phantoms is essential [1,2] and thei...
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 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 کاملQuality Assurance / Phantoms
Gamma index pass rates were evaluated for an anthropomorphic phantom using both 2D and 3D calculations. The phantom was irradiated with the traditional dosimetry insert loaded with radiochromic film and TLD, and then with a 3D dosimetry insert. A comparison with the calculated dose distribution showed that both the PRESAGE® dosimeter and the film and TLD system agreed with the plan to within 5%...
متن کاملT1 Mapping in Athletes
Cardiac adaptation to high-intensity exercise is well recognized and often termed the athlete’s heart. The characteristic features of athlete’s heart are increased left ventricular (LV) volume, increased LV wall thickness and mass, resting bradycardia, and ECG repolarization abnormalities. These changes are particularly associated with endurance training causing eccentric LV hypertrophy, wherea...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2015
ISSN: 1532-429X
DOI: 10.1186/1532-429x-17-s1-w28