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- 저자 : Al Saud Sultan (검색결과 2 건)
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Multislice CT Virtual Intravascular Endoscopy for Assessing Pulmonary Embolisms: a Pictorial Review
Zhonghua Sun,Sultan Ayed Al Dosari,Curtise Ng,Ali al-Muntashari,Saud Almaliky 대한영상의학회 2010 Korean Journal of Radiology Vol.11 No.2
Multislice CT has been widely used in clinical practice for diagnosing cardiovascular disease due to its reduced invasiveness and its high spatial and temporal resolution. As a reliable alternative to conventional pulmonary angiography, multislice CT angiography has been recognized as the first line technique for detecting and diagnosing pulmonary embolism. A pulmonary embolism located in the main pulmonary artery, as well as being located in the segmental branches, can be accurately detected with multislice CT imaging, and especially with the use of 16-and 64-slice CT scanners. Visualization of pulmonary embolisms has traditionally been limited to 2D, multiplanar reformation and the 3D external surface visualizations. In this pictorial review, we present our experience of using 3D virtual intravascular endoscopy to characterize and evaluate the intraluminal appearance of pulmonary embolisms in a group of patients who were suspected of having pulmonary embolism and who were undergoing multislice CT angiography. We expect that the research findings from this study will provide insight into the extent of disease and the luminal changes to the pulmonary arteries that are due to the presence of thrombus, and so monitoring of the progress of disease and predicting the treatment outcome can well be achieved.
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Sheikhi Masoome,Shahab Siyamak,Balali Ebrahim,Alnajjar Radwan,Kaviani Sadegh,Khancheuski Maksim,Al Saud Sultan 대한화학회 2021 Bulletin of the Korean Chemical Society Vol.42 No.11
Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations were performed in the solvent water for the study of the adsorption of the Ribavirin (RIB) on surfaces of the carbon nanotube (CNT) and graphene nanosheet (GNS). After the adsorption, the electronic properties of the CNT and GNS change. The adsorption energies are shown the strong adsorption in GNS/RIB (0.816 eV) rather than CNT/RIB (0.544 eV). The dipole moment of CNT and GNS changes with the adsorption of the RIB from 0.00 to 4.57 and 7.05 Debye in CNT/RIB and GNS/RIB, respectively. The adsorption of the RIB molecule on CNT and GNS increases the value of λmax. The localized orbital locator and electron location function values for the C C bond confirm the stronger interaction between carbon atoms of GNS and RIB. Based on the results, it is suggested that GNS with a lower energy gap (3.03 eV) is a more suitable structure for adsorption of the RIB in comparison with the CNT (3.021).
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