Effect of Intracycle Motion Correction Algorithm on Image Quality and Diagnostic Performance of Computed Tomography Coronary Angiography in Patients with Suspected Coronary Artery Disease

Impact of SSF on Diagnostic Performance of Coronary Computed Tomography Angiography Within 1 Heart Beat in Patients With High Heart Rate Using a 256-Row Detector Computed Tomography

“…These findings are similar to the results from Li [6] et al and Leipsic [7]. However, another report by Carrascosa [9] observed only mild differences regarding the diagnostic performance in patients with HR lower than 65 bpm. By using a quantitative pulsating coronary phantom, Cho [2] et al demonstrated that no difference in measurement error of the area or lumen when HR was 60 bpm.…”

“…Our study is in agreement with other reports with regard to the usefulness of SSF in improving image quality and diagnostic value. SSF can improve image quality and interpretability in the three coronary arteries and on the per-segment, per-artery, per-patient assessment, according to previous studies by Leipsic [7] and Carrascosa [9] et al When compared to the STD, there was higher significant improvement in image quality and interpretability with SSF technique reconstruction in the RCA than LAD and LCX. Because of the rapid velocity is in the RCA (mean, 35.8±2.8 mm/sec), and the velocities of RCA are higher than those of the LAD (mean, 20.2±2.3 mm/sec) and LCX (mean, 24.9±2.5 mm/sec) throughout the entire cardiac cycle [20].…”

“…Although SSF technique has been performed for several years, our study is the first report to document the impact of it on image quality, interpretability and diagnostic performance of one heart beat CCTA in patients with high HR using a latest 256-row detector CT scanner. Previous studies have showed that SSF as a vendor-specific for motion correction algorithm can improve image quality, interpretability [1,2,[6][7][8][9][10][13][14][15][16][17][18][19], and it also can improve diagnostic accuracy using a 64-row detector CT scanner [2,[6][7][8][9][10]. However, all of these studies were performed in patients with low HR and with resultant higher radiation dose.…”

“…During the past five years, attempts have been made to improve coronary artery image quality by using a software solution for vendor-specific motion correction algorithms (including the snapshot freeze-SSF, GE Healthcare). It has been reported that SSF technique can improve diagnostic accuracy using a 64-row detector CT scanner, but the effective dose of patients for CCTA was higher than 3.3 mSv [6][7][8][9][10]. The diagnostic performance of one heart beat CCTA using a 256-row detector CT with the use of SSF in patients with high HR has not been systematically studied.…”

Editorial in response to: PET/CT evaluation of 18F-FDG uptake in pericoronary adipose tissue in patients with stable coronary artery disease: Independent predictor of atherosclerotic lesion formation?

“…Additionally, the application of cardiac motion correction, with the inclusion of respiratory motion correction, may increase the diagnostic sensitivity of identification and localization of PCAT and decrease the variance seen in the measurements published in the current study. 24,25 Despite these limitations in their application of the cardiac PET/CT methodology, the investigators demonstrated an increase in FDG uptake and therefore inflammatory activity in the co-registered PCAT segments of the coronary arteries. This increase in SUV values was significantly different from subcutaneous, visceral, and epicardial adipose tissue stores, and there was a significant increase noted in PCAT in patients with CAD vs non-CAD controls.…”