Dynamic CT perfusion measurement in a cardiac phantom
نویسندگان
چکیده
منابع مشابه
A direct comparison of the sensitivity of CT and MR cardiac perfusion using a myocardial perfusion phantom
BACKGROUND Direct comparison of CT and magnetic resonance (MR) perfusion techniques has been limited and in vivo assessment is affected by physiological variability, timing of image acquisition, and parameter selection. OBJECTIVE We precisely compared high-resolution k-t SENSE MR cardiac perfusion at 3 T with single-phase CT perfusion (CTP) under identical imaging conditions. METHODS We use...
متن کاملDirect comparison of MR and CT perfusion utilizing a myocardial perfusion phantom
Background Myocardial CT perfusion is a relatively new technique which enables the assessment of perfusion deficits through first pass imaging in combination with pharmacological stress. Comparison of CT and MR perfusion has been limited and in-vivo assessment is affected by physiological variability, acquisition timing during firstpass contrast perfusion and parameter selection. We utilized a ...
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In present PET/CT scanners, PET attenuation correction is performed by relying on the information given by CT scan. In the CT-based attenuation correction methods, dual-energy technique (DECT) is the most accurate approach, which has been limited due to the increasing patient dose. In this feasibility study, we have introduced a new method that can implement dual-en...
متن کاملFeasibility of simultaneous PET-MR perfusion using a novel cardiac perfusion phantom
Background: PET-MR scanners are beginning to be employed for quantitative myocardial perfusion imaging. In order to examine simultaneous perfusion calculations, this work describes a feasibility study of simultaneous PET-MR of gadolinium-based contrast agent (GBCA) and PET radiotracer in a novel cardiac perfusion phantom. Results: [F]F and GBCA were injected simultaneously into a cardiac phanto...
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Methods Our MR-compatible phantom resembles the anatomy of the heart and of the thoracic vessels of a 60 kg subject. Water flow (2-4 l/min) is driven into the system by a pump located outside the MR room. Gadolinium injections (Gadovist, gadobutrol, Bayer Schering, Germany) are performed in the vena cava by a power-injector (Medrad Solaris, Germany). Progressive dilution of the Gadolinium bolus...
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ژورنال
عنوان ژورنال: The International Journal of Cardiovascular Imaging
سال: 2015
ISSN: 1569-5794,1573-0743
DOI: 10.1007/s10554-015-0700-4