![]() ![]() Defect detectability, image quality and image contrast were evaluated both visually and quantitavely for each set of images. ![]() and with CD-SPECT camera for 6 sec/frame (3min), 11 sec/frame (6 min), 23 sec/frame (12 min) and 45 sec/frame (24 min). Images were acquired with CDU-CZT SPECT camera for 1.5, 3, 6 and 12 min. Imaging performances of the cameras were compared in different acquisition times or activities. Images was taken with CDU-CZT SPECT camera (GE Discovery NM 530c) and conventional CD-SPECT camera (GE Optima). An empty space (2x1.5x0.5cm) which simulates myocardial perfusion defect was placed inside the myocardial cavity. Myocardial space of the phantom was filled with 12.8 MBq Tc-99m and ventricular cavity was filled with 0.74 MBq Tc-99m. Methodology: An anthropomorphic cardiac phantom was used to simulate rest cardiac Tc-99m Sestamibi (MIBI) studies. The aim of this study is to compare imaging performances of cardiac dedicated ultrafast CZT (CDU-CZT) camera with conventional cardiac dedicated dual head SPECT (CD-SPECT) camera. The new cardiac dedicated ultrafast cameras with cadmium–zinc-telluride (CZT) solid state detectors and multiple-pinhole detector design combining with innovation in reconstruction software allows significant improvement in sensitivity of the cardiac cameras. Background: Myocardial perfusion imaging (MPI) has been widely used in clinical practice because of its well-documented value in the diagnosis and prognosis of coronary artery disease (CAD).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |