Kai Li, Tommy Tanu Wijaya, Xiaoying Chen, Muhammad Syahril Harahap
Exploring the factors affecting elementary mathematics teachers' innovative behavior: an integration of social cognitive theory
Scientific reports
photon counting ct pcct holds promise mitigating metal artifacts produce virtual monoenergetic images vmi maintaining temporal resolution making valuable tool characterizing heart study aimed evaluate optimize pcct cardiac imaging patients left ventricular assistance device lvad therapy conducting indepth objective assessment metal artifacts visual grading various scan reconstruction settings tested phantom evaluated patient acquisition identify optimal protocol settings phantom comprised empty thoracic cavity supplemented heart lungs cadaveric lamb heart implanted lvad heartmate 3 iodine contrast scans performed pcct naeotom alpha siemens healthcare metal artifacts assessed three objective methods hounsfield units husd measurements diffhu sdartifact fourier analysis amplitudelowfreq depicted lvad volume images bloomvol radiologists graded metal artifacts diagnostic interpretability lvad lumen cardiac tissue lung tissue spinal cord using 5point rating scale regression correlation analysis conducted determine assessment method closely associated acquisition reconstruction parameters well objective method demonstrating highest correlation visual grading due blooming artifacts lvad volume fluctuated 270 927 cm3 variance primarily influenced kvp kernel kev imar r2 0989 radiologists favored pacemaker imar 3 mm slice thickness t3d kev kernel bv56f minimal metal artifacts cardiac tissue assessment 110 kev qr40f lung tissue interpretation model adequacy diffhu sdartifact amplituelowfreq bloomvol 028 076 029 099 respectively phantom data 095 098 100 099 invivo data invivo data correlation visual grading vgsum diffhu sdartifact amplituelowfreq bloomvol 016 001 048 040 respectively found optimal scan settings lvad imaging involved using 120 kvp iq level 80 employing t3d pacemaker imar sharpest allowed vascular kernel bv56f vmi 110 kev kernel qr40 yields images suitable cardiac imaging lvadtherapy volumetric measurements lvad determination extent blooming artifacts shown best objective method assess metal artifacts