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06:42 CET
VoE 1 - Cardiac
Cardiac
Wednesday, February 28, 09:00 - 10:00
Moderator: B. Mansouri (Algiers/DZ)


C-0066
09:00
Definition of visceral obesity in patients with ischemic heart disease according to computed tomography
A. Kokov, N. Brel, O. Gruzdeva, V. L. Masenko, S. E. Semenov, O. Barbarash; Kemerovo/RU

Aims and objectives:
Visceral adipose tissue (VAT) has the most pronounced metabolic activity. Adipokines, secreted by VAT, cause the active formation of proinflammatory mediators. In addition, produced free fatty acids, promote the development of insulin resistance [1]. Traditional anthropometric methods for detecting [...]
Methods and materials:
Our study included 88 patients with CHD at the age of 57 (52; 63) years who were on inpatient treatment at the clinic of the Institute of Complex Problems of Cardiovascular Diseases. The diagnosis of CHD was verified on the basis of clinical diagnostic and instrumental data. The control group includ[...]
Results:
In the analysis of the anthropometric assessment of obesity, the BMI of the patients in the main group was 27.77 (25.4; 31.1) kg/m2, compared to 27.4 (26.4; 30.4) kg/m2 in the comparison group significant differences between them (p=0.54). Evaluation of the ratio of W/H allowed to reveal higher valu[...]
Conclusion:
Multispiral computed tomography, used as a method of assessing visceral obesity, has established itself as the most informative method in comparison with classical anthropometric methods of calculating BMI and the ratio of waist to hip volume. Calculation of the volume of VAT allows to reliably esti[...]
Personal information:
References:
1. Nieves, D.J., Cnop M., Retzlaff B. The atherogenic lipoprotein profile associated with obesity and insulin resistance is largely attributable to intraabdominal fat // Diabetes. 2003. Vol. 52. P. 172-179. 2. Kokov A.N., Brel N.K., Masenko V.L., Gruzdeva O.V., Karetnikova V.N., Kashtalap V.V., Barb[...]

C-0252
09:07
Contrast Opacification Difference of Mural Artery and Transluminal Attenuation Gradient on Coronary CT Angiography for Detection of Significant Systolic Compression in Patients with Myocardial Bridge
X. Yuanliang1, X. Wang1, X. Wei1, X. Yikai2; 1Wuhan/CN 2Guangzhou/CN

Aims and objectives:
Myocardial bridge(MB)is commonly considered a benign inborn variation, and the middle segment of left anterior descending artery (LAD) is the most involved coronary vessel[1]. Previous studies shows MB might be a potential correlative factor for acute or chronic myocardial ischemia, coronary arterie[...]
Methods and materials:
From January 2014 to September 2016, A total 581 consecutive hospitalized patients who underwent retrospective ECG-gated CCTA using a 128-slice dual-source CT scanner were reviewed, 107 patients diagnosed as MB in LAD by CCTA or ICA within three months. For TAG measurement of LAD, cross-sectional vi[...]
Results:
The intra-class correlation coefficients of TAG, TAGstandardized, CODstandardized, MB length were 0.929 (95%CI: 0.832-0.971, p < 0.001), 0.996 (95%CI: 0.991-0.998, p < 0.001), 0.976 (95%CI: 0.941-0.990, p < 0.001) and 0.994 (95%CI: 0.985-0.998, p < 0.001) respectively. Mean TAG and TAGst[...]
Conclusion:
Measurements of TAGstandardized and CODstandardized derived from CCTA may provide a noninvasive method for detecting functional systolic compress of MB and improve diagnostic performance and reclassification of CCTA in MB. Combined TAGstandardized, CODstandardized and CCTA assessment may have incre[...]
Personal information:
References:
1.Ko SM, Kim KS. Multidetector-row CT coronary angiographic finding of myocardial bridging. The British journal of radiology. 2007;80(957):e196-200. 2.Migliore F, Maffei E, Perazzolo Marra M, et al. LAD coronary artery myocardial bridging and apical ballooning syndrome. JACC Cardiovascular imaging[...]

C-0734
09:14
Cardiac MR in Pneumoconiosis
M. Bhatia; New Delhi/IN

Learning objectives:
The learning objective is to demonstrate the cardiac complications of complicated pulmonary silicosis with extra-pulmonary involvement.
Background:
Occupational inhalation of air borne particulate matter results in pneumoconiosis with associated health hazards(1). Silicosis, a form of pneumoconiosis, is progressive interstitial lung involvement, (Fig. 1), resulting from acute, accelerated or chronic inhalation of crystalline silica, a known haz[...]
Findings and procedure details:
Silicosis may be an acute or classic form. The acute form manifests on CT imaging as alveolar silicoproteinosis with bilateral, perihilar, centrilobular, nodular or multifocal patchy ground-glass opacities, and consolidation (7,8) or crazy-paving appearance with airspace shadowing and interlobular s[...]
Conclusion:
Pneumoconiosis continues to be an important occupational health hazard in the mining industry with life threatening implications not only on account of pulmonary involvement but also extrapulmonary, extrathoracic and cardiac complications. Cardiac MR today enables the most accurate and comprehensive[...]
Personal information:
Dr. Mona Bhatia MD, FRCR, FSCCT Director and Head, Department of Radiology and Imaging Fortis Escorts Heart Institute New Delhi, India e mail: monavikas@hotmail.com; monabhatia1@gmail.com
References:
1.WeilI, Jones R, Parkes W. Silicosis and related diseases. In: Parkes W, ed. Occupational lung disorders. 3rd ed. London, England: Butterworths, 1994; 285–339 2.McLoudTC. Occupational lung disease. Radiol Clin North Am1991; 29: 931–941 3.Semin Chong, Kyung Soo Lee, Myung Jin Chung, Joungho Han,[...]

C-1082
09:28
Cardiac CT for evaluation of early complications after aortic valve replacement.
F. Amoretti1, A. cerillo2, F. Avogliero3, D. Della Latta2, N. Martini2, A. Di Giambattista2, A. Clemente3, D. Chiappino4; 1Pisa/IT 2Massa/IT 3Massa (MS)/IT 4Montignoso/IT

Aims and objectives:
Transcatheter aortic valve implantation (TAVI) and sutureless aortic valve replacement are both based on the use of valved stents to replace the stenotic aortic valve. The anchoring and good sealing of sutureless and transcatheter valves rely on oversizing the stent frame compared to the native aort[...]
Methods and materials:
Sixteen patients with overtly failing sutureless (14) or transcatheter (2) valves, and 32 patients with increased gradients (>20 mmHg and <40 mmHg) after sutureless aortic valve replacement underwent evaluation at our institution. All patients underwent cardiac CT. Transesophageal echocardiogr[...]
Results:
Only two patients with overtly failing sutureless valves showed the typical calcific structural valve deterioration, and two had prosthetic valve endocarditis (Figure 5). Three patients had major sutureless valve thrombosis (Figure 6). In seven patients the presence of increased gradients was not re[...]
Conclusion:
In patients with failing transcatheter aortic prostheses and sutureless aortic valves, stent underexpansion and/or distortion are two likely mechanisms of altered prosthetic leaflet function, possibly leading to leaflet thrombosis and eventually to early valve failure. Transthoracic and transesopha[...]
Personal information:
Dr Francesca Amoretti, MD Unità Operativa di Radiologia, Ospedale "G. Pasquinucci" Fondazione Toscana G. Monasterio Via Aurelia Sud 54100, Massa, Italy Phone: 0039 0585 483564 email: amorettif@gmail.com
References:
1. Makkar RR, et al. Possible Subclinical Leaflet Thrombosis in Bioprosthetic Aortic Valves. N Engl J Med 2015; 373:2015-2024.

C-1275
09:35
Negative Predictive Value of Cardiac Magnetic Resonance and Cardiac Computed Tomography in Patients with Ischemic Stroke
f. lavra1, C. De Cecco1, A. Varga-Szemes1, M. van Assen1, P. von Knebel Doeberitz1, U. Schoepf1, M. Eid1, D. Mastrodicasa1, L. Saba2; 1Charleston/US 2Cagliari/IT

Aims and objectives:
Ischemic stroke is a leading cause of mortality and long-term disability worldwide and its recurrence constitutes the major complication [1, 2]. Cardiogenic strokes represent 20-30% of all ischemic cases; therefore, the early identification of the sources of cardioembolic stroke is pivotal for prope[...]
Methods and materials:
Patient Selection In this single-center retrospective study we identified a total of 284 patients over the age of 18, who were admitted to our hospital with an acute stroke (less than 7 days of onset from admission) between January 2013 and May 2017, who then underwent a CMR or cCTA examination. Hea[...]
Results:
The study population was composed of 184 patients (cCTA n=102, CMR n=84) with suspected cardioembolic stroke, 99 of whom were men with a mean age of 61.2 ± 17.1 years; clinical and demographic variables were not statistically different between the cCTA and CMR group. In the cCTA group and CMR group,[...]
Conclusion:
The aim of this study was to test the reliability of cCTA and CMR in ruling out a recurrence in patients with suspected cardioembolic stroke after a negative exam. cCTA and CMR demonstrated a high NPV for excluding this major complication with no significant difference in diagnostic accuracy between[...]
Personal information:
References:
1. Ko Y, Kim WJ, Jang MS, Yang MH, Park JH, Choi SI, et al. Is aortic atherothrombotic disease detected using multidetector-row CT associated with an increased risk of early ischemic lesion recurrence after acute ischemic stroke? Stroke. 2012;43(3):764-9. 2. Sacco RL, Adams R, Albers G, Alberts MJ, [...]

C-1982
09:42
Cardiac chambers filling defects- thrombus or myxomas? – Cardiac CT imaging findings
V. Mellou1, E. Lazaridou2, A. Anagnostopoulou3, M. Kaiafa3, D. Exarhos3; 1Chaidari/GR 2Holargos-Attiki/GR 3Athens/GR

Learning objectives:
1. To compare the CT imaging features of myxomas and thrombi. 2. To emphasize on the key imaging features that aid in differentiating one entity from the other.
Background:
Echocardiography (transthoracic and transesophageal) is the diagnostic tool of choice but cross sectional imaging often plays an essential role in distinguishing myxomas from thrombi, since clinical findings are often subtle. Distinguishing one entity from the other is crucial because of the differe[...]
Findings and procedure details:
CT findings of myxomas · They present as spherical-ovoid filling defects within a cardiac chamber (most often the left atrium), opacified with contrast material. · They are either hypoattenuating (80%) or isoattenuating compared to the myocardium. · Myxoma attenuation is lowe[...]
Conclusion:
CT contributes in interpreting filling defects involving the cardiac chambers and can accurately differentiate in the majority of cases by assessing the distinguishing features. The origin of the lesion is of high significance and is in good concordance with the surgical findings. An intracavitar[...]
Personal information:
Dr Vasiliki Mellou Radiology Department, “Evangelismos” General Hospital of Athens - Athens/GR email: vickmell7@gmail.com
References:
Normal 0 false false false EN-US X-NONE X-NONE Hans Scheffel, Stephan Baumueller, Paul Stolzmann, Sebastian Leschka, André Plass, Hatem Alkadhi, and Thomas Schertler, Atrial Myxomas and Thrombi: Comparison of Imaging Features on CT American Journal of Roentgenology 2009 192:3, 639-645 e Grebenc ML,[...]

C-2843
09:49
Assessment of pulmonary veins and left atrium flow in patients with atrial fibrillation by 4D Flow MRI
E. Glazkova, V. Makarenko, S. Alexandrova, M. Shlyappo; Moscow/RU

Aims and objectives:
Atrial fibrillation (AF) is the most common type of heart arrhythmia, which increases the risks of death, stroke and other thromboembolic complications. [1] Stasis in the left atrium (LA) flow is regarded as one of the main factors of thrombus formation in AF patient. (2) However, the knowledge of h[...]
Methods and materials:
Patient population In this retrospective study, 15 patients were included: 8 healthy volunteers (28±11 years) and 7 patients with supraventricular arrhythmias, paroxysmal form, in sinus rhythm (35±8.5 years). MRI protocol All patients were studied with a 1.5 T MRI. Cine 3D velocity-encoding acquis[...]
Results:
Quantification of the PVs flow. 32 PVs in the CG and 27 of PVs in AFG were analyzed. Hemodynamic parameters of the PVs flow except for the Average flow rate decreased significantly in AFG. (Tab. 1) Table 1. Quantification of the PVs flow in controls and AF patient. Average volume flow rat[...]
Conclusion:
4D Flow MRI revealed significant changes in AF patients flow. PVs hemodynamics patterns were reduced (p<0,05), PVs flow were desynchronized, and LA vortex was rarely formed (p<0.05). Further evaluation was required to estimate diagnostic value of these criteria as risk factors for thromboembol[...]
Personal information:
References:
1. ACC/AHA/ESC 2006 Guidelines for the management of patients with atrial fibrillation. Europace. 2006; (8): 651-745. 2. Watson T., Shantsila E., Lip G.Y. Mechanisms of thrombogenesis in atrial fibrillation: Virchow’s triad revisited. Lancet. 2009; 373: 155–166. 3. Fyrenius А., Wigström L., Ebbers T[...]

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