Multidetector EKG gated cardiac CT scan (MDCT) can accurately identify the anatomy of the coronary sinus and its tributary veins. The purpose of this sub-study was to determine the anatomic characteristics and variants in a series of patients undergoing CRT implantation and whether any anatomic ...
This technology includes the latest hybrid PET/CT systems and the ability to perform Myocardial Blood Flow (MBF) scans, used to detect decreased blood flow, and cardiac PET/CT viability scans, used to distinguish cardiac muscle damage for scarring. Scan images provide accurate pre-treatment inform...
We evaluate stability of spectral results at different heart rates, acquisition modes, and cardiac phases in first-generation clinical dual-source photon-counting CT (PCCT). A cardiac motion simulator with a coronary stenosis mimicking a 50% eccentric calcium plaque was scanned at five different ...
A cardiac computerized tomography (CT) scan – which can also be referred to as a coronary CT angiography or CT angiogram – is an imaging test to view the heart and blood vessels. It is a test that carries few risks and is less invasive than alternative procedures such as an angiogram....
have been used to establish ECG-triggered or ECGgated multislice CT (MSCT) examinations of the heart and the coronary arteries in clinical use (6–10). As a result of the increased scan speed with four simultaneously acquired slices, coverage of the entire heart volume with thin slices within...
The microCT scan of the oldest chimpanzee in the present study, a female aged 59 years-old, revealed multiple areas of calcification within the great vessels. Pathological, histological and microCT results showed that she presented with only mild to moderate (level 3) IMF and no ossification ...
(with respect to standard angiography) and administering an intravenous stressor during a CT scan.In-silico computational models2,3,4can provide valuable insights into physiological processes and enable the simulation of virtual scenarios under multiple pathological conditions, making them useful for ...
The DLP, which equals the CTDIvol multiplied by the respective scan length, mirrors best the radiation a patient is exposed to by the entire CT scan. This parameter was used as the primary outcome measure in our study. The effective dose of CCTA can be estimated by a method proposed by ...
The dependence of “E” on DLP obvious because the DLP is the measure of CT tube radiation output and scan length is also multiplicative factor for radiation dose. The reduction of scan length of [Math Processing Error]1cm results nearly saving [Math Processing Error]1mSv of radiation dose [...
Quantitative error was observed throughout the myocardium and was not confined to those heart regions that extended into the lung on misregistered CT. 展开 关键词: PET/CT misregistration absolute myocardial blood flow myocardial flow reserve