Historically, the importance of right ventricle (RV) has been underestimated and overlooked in clinical practice and literature. Usually, left ventricle (LV) function is most commonly reported. In recent years,　RV function in left heart disease has received more and more attention, the importance of assessment of RV function in clinical management of cardiopulmonary disorders has been recognized .[1-4] RV dysfunction is an important diagnostic and prognostic indicator in many cardiac and pulmonary diseases. [5-8] Therefore, to identify RV pathology, guidelines have been published by the...

Patients Between April and July 2019, A total of 132 patients (88 males, 44 females) with an average age of 69 ± 10.5years (range, 34–85 years) who underwent both echocardiography and CT at the same day for evaluation of coronary artery were enrolled in the study(Table 1). CT protocol Contrast-enhanced cardiac CT were performed with 128-slice MDCT scanner (Brilliance iCT, PHILIPS Healthcare). The imaging parameters were as follows: collimation, 64 mm x 0.625 mm; Rotation time: 0.27 sec.; pitch factor,0.10 to 0.14; tube voltage,100kV; tube...

Each three cases were excluded due to lack of echocardiography data for TAPSE and RVFAC. Two cases were excluded due to measurement difficulties at CT. Therefore, there are obtained 127 datasets for TAPSE and 127 datasets for RVFAC. Calculation of Pearson’s correlation coefficient (r) revealed a moderate correlation between CT derived values and those with echocardiography (TAPSE, r=0.445, p

Phase-interpolated cardiac CT using deformable, voxel-to-voxel registration motion coherence algorithm assesses right ventricular function, with excellent reproducibility of the both TAPSE and RVFAC. CT is generally not a first-line examination for calculating only right ventricular function. However, after a standard coronary CT, functional assessments can be performed without any additional contrast material or radiation exposure via some post-processing calculation steps. As a new method in functional cardiac imaging, CT seems to offer some solutions for the difficulties faced in echocardiography because CT does not necessitate...

A. Inakami; Hyogo/JP - nothing to disclose K. Miyauchi; Hyogo/JP - nothing to disclose R. Ogawa; Hyogo/JP - nothing to disclose A. Matsumoto; Nagoya/JP - nothing to disclose Y. Katsuyama; Hyogo/JP - nothing to disclose S. Takahashi; Suita, OSAKA/JP - nothing to disclose T. Washio; Hyogo/JP - nothing to disclose M. Habuchi; Hyogo/JP - nothing to disclose

[1] Ghio S, Klersy C, et al. Prognostic relevance of the echocardiographic assessment of right ventricular function in patients with idiopathic pulmonary arterial hypertension. [2] Bosch L, et al. Right ventricular dysfunction in leftsided heartfailurewithpreservedversusreduced ejection fraction. [3] Koifman E, et al. Impact of right ventricular function on outcome of severe aortic stenosis patients undergoing transcatheter aortic valve replacement. [4]MascherbauerJ,etal.Presenceof‘isolated’tricuspidregurgitationshould prompt the suspicionof heart failurewith preservedejectionfraction. [5] Mendes LA, Dec GW, Picard MH, Palacios IF, Newell J, Davidoff R. Right ventricular dysfunction: an independent predictor...