Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Orazio Zoccarato"'
Autor:
Orazio Zoccarato, Roberta Matheoud, Michela Lecchi, Marcassa Claudio, Marco Brambilla, Camilla Scabbio
Publikováno v:
Journal of Nuclear Cardiology. 28:338-349
This investigation used image data generated by an anthropomorphic phantom to determine the minimal 99mTc rest-stress activity concentration ratio (R) able to minimize the ghosting effect in the single-day stress-first myocardial perfusion imaging, u
Autor:
Orazio, Zoccarato, Roberta, Matheoud, Michela, Lecchi, Camilla, Scabbio, Marcassa, Claudio, Marco, Brambilla
Publikováno v:
Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 28(1)
This investigation used image data generated by an anthropomorphic phantom to determine the minimalA cardiac phantom with a simulated PD was imaged under different R using different gamma cameras and reconstruction algorithms. The residual activity f
Autor:
Giovanni Lucignani, Orazio Zoccarato, Michela Lecchi, Simona Malaspina, Camilla Scabbio, Angelo Del Sole
Publikováno v:
Journal of Nuclear Cardiology. 26:775-785
To evaluate the impact of non-specific normal databases on the percent summed rest score (SR%) and stress score (SS%) from simulated low-dose SPECT studies by shortening the acquisition time/projection. Forty normal-weight and 40 overweight/obese pat
Autor:
Marco Brambilla, Lucia Leva, Giovanni Lucignani, Roberta Matheoud, Claudio Marcassa, Michela Lecchi, Orazio Zoccarato
Publikováno v:
Physica Medica. 41:109-116
New technologies are available in myocardial perfusion imaging. They include new software that recovers image resolution and limits image noise, multifocal collimators and dedicated cardiac cameras in which solid-state detectors are used and all avai
Publikováno v:
European Journal of Nuclear Medicine and Molecular Imaging. 43:1513-1521
Few data exist on the correlation between the effectiveness of risk factor control and the evolution of myocardial perfusion over time in patients with stable ischaemic heart disease. The aim of the study was to evaluate the changes in stress-rest my
Autor:
Michela Lecchi, Giovanni Lucignani, Orazio Zoccarato, A. Del Sole, I. Martinelli, Claudio Maioli
Publikováno v:
Journal of Nuclear Cardiology. 24:876-887
The introduction of a camera-based dose-reduction strategy in myocardial perfusion imaging (MPI) clinical setting entails the definition of objective and reproducible criteria for establishing the amount of activity to be injected. The aim is to eval
Autor:
Michela Lecchi, Lucia Leva, Claudio Marcassa, Angelo Del Sole, Christian Bracco, Carlo Rodella, Domenico Lizio, Camilla Scabbio, Marco Brambilla, Roberta Matheoud, Orazio Zoccarato, Luca Indovina
Publikováno v:
Journal of Nuclear Cardiology. 24:1036-1045
The purpose of this study was to evaluate the image quality in cardiac 18F-FDG PET using the time of flight (TOF) and/or point spread function (PSF) modeling in the iterative reconstruction (IR). Three scanners and an anthropomorphic cardiac phantom
Autor:
Claudio Marcassa, Orazio Zoccarato
Publikováno v:
Current Cardiovascular Imaging Reports. 11
In recent years, increasing economical limitations resulted in a general reduction in health care spending possibilities and, finally, in budget limitations. The potential impact of these economical restrictions on cardiac imaging is discussed. Imagi
Autor:
Orazio Zoccarato, Claudio Marcassa
Publikováno v:
Journal of Nuclear Cardiology. 24:142-144
The cornerstone results of nuclear cardiology in the last 25 years were obtained with the Filtered Back Projection as the preferred reconstruction method for tomographic studies. Recently, evolution of the OSEM iterative reconstruction algorithms was
Autor:
Roberta, Matheoud, Michela, Lecchi, Domenico, Lizio, Camilla, Scabbio, Claudio, Marcassa, Lucia, Leva, Angelo, Del Sole, Carlo, Rodella, Luca, Indovina, Christian, Bracco, Marco, Brambilla, Orazio, Zoccarato
Publikováno v:
Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 24(3)