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SYNTAX and Coronary Artery Calcium Score Predict Atherosclerotic Plaque Formation in the Ascending Aorta
CONCLUSIONS: CAC score and ACS are strongly correlated with the complexity of coronary arteries in CABG patients. The total CAC score (≥ 400 AU) was independently associated with the degree of SS (>37). To prevent MACCE and mortality in CABG patients, we suggest the measurement of CAC score accompanied with ACS using MDCT as a non-invasive method. Highlight points: • Atherosclerotic plaque formation in aorta and coronary arteries are the main risk factors for stroke and infarction in CABG operations. •SYNTAX score value and aortic atherosclerosis levels are directly correlated. •SYNTAX score may predict the comp...
Source: The Heart Surgery Forum - December 28, 2021 Category: Cardiovascular & Thoracic Surgery Authors: Ismail Haberal Mehmet Balli Esra Ert ürk Tekin Ayhan Uysal Sadiye Deniz Ozsoy Mehmet Ali Yesiltas Doga ç Oksen Sebnem Batur Hulya Yilmaz Ak Bahar Aydinli Source Type: research

Diagnostic reference levels and median doses for common clinical indications of CT: findings from an international registry
ConclusionsDRLs for CTDIvol and DLP for EUCLID clinical indications from diverse organizations were established and can contribute to dose optimization. These values were usually significantly higher in the US than in Europe.Key Points•Registry data were used to create benchmarks for 10 common indications for CT identified by the European Society of Radiology.•Observed US radiation doses were higher than European for 9 of 10 indications (except chronic sinusitis).•The presented diagnostic reference levels and median doses highlight potentially unnecessary variation in radiation dose.
Source: European Radiology - October 13, 2021 Category: Radiology Source Type: research

Cervicocerebral atherosclerosis and its hepatic and coronary risk factors in patients with liver cirrhosis
CONCLUSIONS: Our data suggest that LC confers protection against intracranial atherosclerosis, and that thrombocytopenia may be involved in this protection. High CAC score could serve as a potential surrogate for cervicocerebral vascular screening in asymptomatic cirrhotics.PMID:34637612 | DOI:10.3350/cmh.2021.0202
Source: Clinical and molecular hepatology - October 12, 2021 Category: Gastroenterology Authors: Jihyun An Hyung Don Kim Seon-Ok Kim Ha Il Kim Gi-Won Song Han Chu Lee Ju Hyun Shim Source Type: research

The Prognostic Value of a Validated and Automated Intravascular Ultrasound-Derived Calcium Score
ConclusionsThe ICS, calculated by a validated automated algorithm derived from routine IVUS pullbacks, was strongly associated with the long-term risk of POCE.Graphical abstract
Source: Journal of Cardiovascular Translational Research - October 1, 2021 Category: Cardiology Source Type: research

E-060 Endovascular treatment for intracranial giant cell arteritis with angioplasty, stenting, and intra-arterial calcium channel blockers
ConclusionsEndovascular treatment, including PTA (with or without stenting) and CCB infusion, may be effective in medically-refractory GCA with intracranial arterial stenosis but complication rates are considerable. The efficacy of CCB monotherapy implicates vascular smooth muscle dysfunction in the pathogenesis of intracranial GCA.Calcium-channel blocker infusion as monotherapy for intracranial giant cell arteritis. Pre-treatment angiography (lateral right internal carotid artery projection) shows severe focal supraclinoid ICA stenosis (curved white arrow, 1A). Post-verapamil infusion (20mg, 15 min delay) angiogram (1B) s...
Source: Journal of NeuroInterventional Surgery - July 26, 2021 Category: Neurosurgery Authors: Caton, M., Mark, I., Baker, A., Narsinh, K., Halbach, V., Hetts, S., Cooke, D., Higashida, R., Dowd, C., Smith, W., Amans, M. Tags: Electronic poster abstracts Source Type: research

The Prognostic Value of a Validated and Automated Intravascular Ultrasound-Derived Calcium Score
ConclusionsThe ICS, calculated by a validated automated algorithm derived from routine IVUS pullbacks, was strongly associated with the long-term risk of POCE.Graphical abstract
Source: Journal of Cardiovascular Translational Research - February 23, 2021 Category: Cardiology Source Type: research

Dual Energy Computed Tomography of Internal Carotid Artery: A Modified Dual-Energy Algorithm for Calcified Plaque Removal, Compared With Digital Subtraction Angiography
Conclusions: The proposed DECT with a modified three-material decomposition algorithm for calcium removal has high sensitivity for the detection of relevant stenoses, and its results were more strongly correlated with DSA than with those of conventional CTA or the previous non-modified algorithm. Further, it overcomes CTA's previous problem of overestimating the degree of stenosis because of blooming artifacts caused by calcified plaques. It is useful to account for calcified plaques while evaluating carotid stenosis.
Source: Frontiers in Neurology - February 4, 2021 Category: Neurology Source Type: research

CT diagnostic reference levels based on clinical indications: results of a large-scale European survey
ConclusionsThis is the first study reporting on feasibility of establishing CT DRLs based on CI using European data. Resulting values will serve as a baseline for comparison with local radiological practice, national authorities when DRLs are set/updated, or as a guideline for local DRL establishment.Key Points•First study reporting on the feasibility of establishing CT diagnostic reference levels based on clinical indication using data collected across Europe.•Only one-fourth of the hospitals had CT machines less than 5 years old.•Large dose variations were observed among hospitals and CT protocols were quite differ...
Source: European Radiology - January 15, 2021 Category: Radiology Source Type: research

Blood Pressure Variability during Angiography in Patients with Ischemic Stroke and Intracranial Artery Stenosis.
Authors: Pan H, Zhao R, Liu FD, Wu YL, Li GF, Shi YH, Liu YS, Zhao Y, Zhuang MT, Hou TY, Zhang QT, Yao Q, Qiao Y, Huang RJ, Chen LN, Zhu YM, Shu L, Su JJ, Fang J, Tang XM, Wang S, Cui GH, Wang DZ, Liu JR Abstract Our aim was to investigate factors predicting blood pressure (BP) variability during diagnostic cerebral angiography and associations between BP variability and clinical outcomes in patients with acute and subacute ischemic stroke and intracranial artery stenosis. 114 patients with ischemic stroke and intracranial artery stenosis (stenosis rate >50%) were recruited. Patients who underwent cerebral angio...
Source: International Journal of Hypertension - September 22, 2020 Category: Cardiology Tags: Int J Hypertens Source Type: research

Relationship between cardio-ankle vascular index and obstructive coronary artery disease
Background Cardio-ankle vascular index (CAVI) is an inexpensive, noninvasive, office-based method to evaluate arterial stiffness in the aorta and legs, which reflects the degree of coronary atherosclerosis. It has been applied clinically to assess arterial stiffness in patients who were diagnosed with coronary artery disease (CAD), stroke and those at risk. We intend to evaluate relationship between the CAVI and obstructive CAD. Methods We enrolled 285 individuals with mean age of 55.8 ± 13.5 years, clinically referred for Coronary Artery Calcium (CAC) scoring and coronary computed tomography angiography (CCTA)...
Source: Coronary Artery Disease - July 30, 2020 Category: Cardiology Tags: Risk Factors for CAD Source Type: research

Prognostic Value of Coronary CT Angiography for Predicting Poor Cardiac Outcome in Stroke Patients without Known Cardiac Disease or Chest Pain: The Assessment of Coronary Artery Disease in Stroke Patients Study.
CONCLUSION: Assessment of stenosis degree and plaque type using CCTA provided additional prognostic value over CACS and FRS to risk stratify stroke patients without prior history of CAD better. PMID: 32691541 [PubMed - in process]
Source: Korean Journal of Radiology - July 23, 2020 Category: Radiology Tags: Korean J Radiol Source Type: research

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