scholarly journals The influence of cardiac function on coronary arterial enhancement at coronary computed tomography angiography: A cross-sectional study

2016 ◽  
Vol 21 (1) ◽  
pp. 132 ◽  
Author(s):  
Peiman Hashemi ◽  
Maryam Moradi ◽  
Mohammad Momeni
Keyword(s):  
Computed Tomography ◽  
Cardiac Function ◽  
Computed Tomography Angiography ◽  
Coronary Computed Tomography Angiography ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Coronary Computed Tomography ◽  
Arterial Enhancement

Computed Tomography Angiography (CTA) Evaluation of Spontaneous Subarachnoid Hemorrhage

2020 ◽  
Vol 6 (2) ◽  
pp. 78-81
Author(s):  
Md Tauhidul Islam Chowdhury ◽  
Mohammad Shah Jahirul Hoque Chowdhury ◽  
Mohammad Sadekur Rahman Sarkar ◽  
KM Ahasan Ahmed ◽  
Md Nazmul Kabir ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Subarachnoid Hemorrhage ◽  
Computed Tomography Angiography ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Multiple Aneurysm ◽  
Traumatic Subarachnoid Hemorrhage ◽  
One Year ◽  
Spontaneous Subarachnoid Hemorrhage

Background: In evaluation of non-traumatic subarachnoid hemorrhage CT angiography (CTA) has 97-98% sensitivity and near 100% specificity. Objective: This study was conducted to evaluate the CTA findings of CT positive non traumatic subarachnoid hemorrhage. Methodology: This is an observational cross sectional study performed in Neurology department of National Institute of Neurosciences and Hospital, Dhaka over one year period (January 2019 to December 2019). Total 87 CT positive subarachnoid hemorrhage cases were purposively included in this study. All CT positive patients underwent CTA of Cerebral vessels for further evaluation. The angiography were evaluated by competent neuro-radiologists blinded about the study. Result: Among 87 patients, 40.2% were male and 59.8% were female. The average age was 53.33±11.1 years. Among the studied patient the source of bleeding was found 78.16% aneurysmal and 21.84% non-aneurysmal. 85.30% patients had single aneurysm and 14.70% had multiple aneurysm. The highest number of patient had Acom aneurysm (41.17%) followed by MCA (22.05%), ICA (13.23%), ACA (7.35%) and vertebral artery (1.14%) in order of frequency. Among the multiple aneurysm group most of the patients had combination of Acom, MCA and ICA aneurysm. Conclusion: From this study, we can conclude that CTA can be used as the primary diagnostic tool in evaluation of spontaneous SAH. Journal of National Institute of Neurosciences Bangladesh, 2020;6(2): 78-81

Influence of cardiac function on image quality in coronary computed tomography angiography

2019 ◽  
Vol 53 ◽  
pp. 58-64
Author(s):  
Tien C. Nguyen ◽  
Yoshiaki Ohyama ◽  
Ayako Taketomi-Takahashi ◽  
Huong T. Nguyen ◽  
Akio Sugimoto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Image Quality ◽  
Cardiac Function ◽  
Computed Tomography Angiography ◽  
Coronary Computed Tomography Angiography ◽  
Coronary Computed Tomography

Evaluation of adverse plaque characteristics in coronary computed tomography angiography using combined near infrared spectroscopy

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Shin
Keyword(s):  
Computed Tomography ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Computed Tomography Angiography ◽  
Near Infrared ◽  
Coronary Computed Tomography Angiography ◽  
Coronary Intervention ◽  
Cross Sectional ◽  
Coronary Computed Tomography ◽  
Significant Difference

Abstract Background/Introduction Coronary computed tomography angiography (CCTA) has developed rapidly, enabling the evaluation of coronary stenosis as well as plaque characteristics. However, it is not clear whether the adverse plaque characteristics found in CCTA are really vulnerable plaques. Near-infrared spectroscopy (NIRS) is able to quantify cholesterol within coronary arteries by the lipid core burden index (LCBI). Purpose The purpose of this study was to determine whether positive remodeling (PR), low attenuated plaque (LAP) and spotty calcificaiton (SC) found in CCTA have high LCBI values in NIRS. Methods The study was single center, prospective, and cross-sectional. A total of 84 patients who underwent NIRS during percutaneous coronary intervention after CCTA imaging for coronary artery disease were studied. PR, LAP and SC were identified in the plaques visible on CCTA, and LCBI and maxLCBI (4mm) were measured by NIRS on the same plaque. Results In the presence of PR and LAP in the plaque, the maxLCBI (4mm) [PR: 468±161 vs. 319±214, p=0.032, LAP: 475±178 vs. 278±191, p=0.006] and LCBI [PR: 190±74 vs. 132±104, p=0.044, LAP: 182±96 vs. 124±93, p=0.038] values were significantly higher than those in the plaque without PR and LAP. However, with and without SC, there was no significant difference between the maxLCBI (4mm) [474±181 vs. 336±208] and LCBI [183±77 vs. 142±102, p=0.127] values. Conclusion Among the adverse plaque characteristics found in CCTA, PR and LAP were clearly correlated with maxLCBI (4mm) and LCBI measured by NIRS, but SC was less correlated. APC vs. LCBI Funding Acknowledgement Type of funding source: None

Sign in / Sign up

Export Citation Format

Share Document