CORRELATION OF PROXIMAL THORACIC AORTA SIZE BY 2-DIMENSIONAL TRANSTHORACIC ECHOCARDIOGRAPHY AND MAGNETIC RESONANCE ANGIOGRAM

Background: The presence of a bicuspid aortic valve (BAV) might be associated with a progressive dilatation of the aortic root and ascending aorta. However, involvement of the aortic arch and descending aorta has not yet been elucidated. Patients and methods: Magnetic resonance angiography (MRA) was used to assess the diameter of the ascending aorta, aortic arch, and descending aorta in 28 patients with bicuspid aortic valves (mean age 30 ± 9 years). Results: Patients with BAV, but without significant aortic stenosis or regurgitation (n = 10, mean age 27 ± 8 years, n.s. versus control) were compared with controls (n = 13, mean age 33 ± 10 years). In the BAV-patients, aortic root diameter was 35.1 ± 4.9 mm versus 28.9 ± 4.8 mm in the control group (p < 0.01). The diameter of the ascending aorta was also significantly increased at the level of the pulmonary artery (35.5 ± 5.6 mm versus 27.0 ± 4.8 mm, p < 0.001). BAV-patients with moderate or severe aortic regurgitation (n = 18, mean age 32 ± 9 years, n.s. versus control) had a significant dilatation of the aortic root, ascending aorta at the level of the pulmonary artery (41.7 ± 4.8 mm versus 27.0 ± 4.8 mm in control patients, p < 0.001) and, furthermore, significantly increased diameters of the aortic arch (27.1 ± 5.6 mm versus 21.5 ± 1.8 mm, p < 0.01) and descending aorta (21.8 ± 5.6 mm versus 17.0 ± 5.6 mm, p < 0.01). Conclusions: The whole thoracic aorta is abnormally dilated in patients with BAV, particularly in patients with moderate/severe aortic regurgitation. The maximum dilatation occurs in the ascending aorta at the level of the pulmonary artery. Thus, we suggest evaluation of the entire thoracic aorta in patients with BAV.

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Moyamoya Syndrome in a Child with β-Thalassemia Major

Journal of Pediatric Neurology ◽

10.1055/s-0039-3401032 ◽

2020 ◽

Vol 18 (04) ◽

pp. 214-216

Author(s):

Soumya Roy

Keyword(s):

Magnetic Resonance ◽

Cerebrovascular Accident ◽

Muscle Wasting ◽

Thalassemia Major ◽

Blood Transfusions ◽

Moyamoya Syndrome ◽

Magnetic Resonance Angiogram ◽

Joint Contractures ◽

Gradual Development ◽

The Right

AbstractA 9-year-old girl patient presented with left-sided weakness and joint contractures developing over a period of 18 months. She was known to be suffering from β-thalassemia major and was on regular blood transfusions. Eighteen months ago, she had suffered from an episode of ischemic cerebrovascular accident affecting the right side of her brain. Magnetic resonance angiogram revealed vaso-occlusive disease affecting mainly the anterior cerebral circulation, resembling Moyamoya disease. She was advised to carry out regular physiotherapy but her parents discontinued it, which resulted in the gradual development of joint contractures and muscle wasting.

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Radial self-navigated native magnetic resonance angiography in comparison to navigator-gated contrast-enhanced MRA of the entire thoracic aorta in an aortic patient collective

Journal of Cardiovascular Magnetic Resonance ◽

10.1186/s12968-021-00774-9 ◽

2021 ◽

Vol 23 (1) ◽

Author(s):

Martina Correa Londono ◽

Nino Trussardi ◽

Verena C. Obmann ◽

Davide Piccini ◽

Michael Ith ◽

...

Keyword(s):

Magnetic Resonance ◽

Image Quality ◽

Magnetic Resonance Angiography ◽

Thoracic Aorta ◽

Aortic Root ◽

Aortic Disease ◽

Ascending Aorta ◽

Scan Time ◽

Contrast Enhanced

Abstract Background The native balanced steady state with free precession (bSSFP) magnetic resonance angiography (MRA) technique has been shown to provide high diagnostic image quality for thoracic aortic disease. This study compares a 3D radial respiratory self-navigated native MRA (native-SN-MRA) based on a bSSFP sequence with conventional Cartesian, 3D, contrast-enhanced MRA (CE-MRA) with navigator-gated respiration control for image quality of the entire thoracic aorta. Methods Thirty-one aortic native-SN-MRA were compared retrospectively (63.9 ± 10.3 years) to 61 CE-MRA (63.1 ± 11.7 years) serving as a reference standard. Image quality was evaluated at the aortic root/ascending aorta, aortic arch and descending aorta. Scan time was recorded. In 10 patients with both MRA sequences, aortic pathologies were evaluated and normal and pathologic aortic diameters were measured. The influence of artifacts on image quality was analyzed. Results Compared to the overall image quality of CE-MRA, the overall image quality of native-SN-MRA was superior for all segments analyzed (aortic root/ascending, p < 0.001; arch, p < 0.001, and descending, p = 0.005). Regarding artifacts, the image quality of native-SN-MRA remained superior at the aortic root/ascending aorta and aortic arch before and after correction for confounders of surgical material (i.e., susceptibility-related artifacts) (p = 0.008 both) suggesting a benefit in terms of motion artifacts. Native-SN-MRA showed a trend towards superior intraindividual image quality, but without statistical significance. Intraindividually, the sensitivity and specificity for the detection of aortic disease were 100% for native-SN-MRA. Aortic diameters did not show a significant difference (p = 0.899). The scan time of the native-SN-MRA was significantly reduced, with a mean of 05:56 ± 01:32 min vs. 08:51 ± 02:57 min in the CE-MRA (p < 0.001). Conclusions Superior image quality of the entire thoracic aorta, also regarding artifacts, can be achieved with native-SN-MRA, especially in motion prone segments, in addition to a shorter acquisition time.

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Comparison of left atrial strain by feature-tracking cardiac magnetic resonance with speckle-tracking transthoracic echocardiography

The International Journal of Cardiovascular Imaging ◽

10.1007/s10554-021-02499-3 ◽

2021 ◽

Author(s):

Mina M. Benjamin ◽

Muhammad S. Munir ◽

Parth Shah ◽

Menhel Kinno ◽

Mark Rabbat ◽

...

Keyword(s):

Cardiac Magnetic Resonance ◽

Magnetic Resonance ◽

Transthoracic Echocardiography ◽

Left Atrial ◽

Feature Tracking ◽

Speckle Tracking ◽

Left Atrial Strain ◽

Atrial Strain

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Right aortic arch and coarctation: delineation by three dimensional magnetic resonance angiogram

Heart ◽

10.1136/hrt.85.5.492 ◽

2001 ◽

Vol 85 (5) ◽

pp. 492-492

Author(s):

COLIN J MCMAHON ◽

G WESLEY VICK ◽

MICHAEL R NIHILL

Keyword(s):

Magnetic Resonance ◽

Aortic Arch ◽

Three Dimensional ◽

Right Aortic Arch ◽

Magnetic Resonance Angiogram

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Magnetic Resonance Imaging of the Thoracic Aorta: A Review of Technical and Clinical Aspects, Including Its Use in the Evaluation of Aneurysms and Acute Vascular Conditions

Diagnosis and Treatment of Abdominal and Thoracic Aortic Aneurysms Including the Ascending Aorta and the Aortic Arch ◽

10.5772/21835 ◽

2011 ◽

Cited By ~ 1

Author(s):

Vasco Heredia ◽

Miguel Ramalho ◽

Sergio Duarte ◽

Rafael O.P. de Campos ◽

Mateus Hernandez ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Thoracic Aorta ◽

Clinical Aspects ◽

Resonance Imaging

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Magnetic Resonance Imaging of the Thoracic Aorta

Echocardiography ◽

10.1111/j.1540-8175.1996.tb00887.x ◽

1996 ◽

Vol 13 (2) ◽

pp. 183-196 ◽

Cited By ~ 1

Author(s):

NEIL M. ROFSKY

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Thoracic Aorta ◽

Resonance Imaging

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Abstract 9634: As Compared With Cardiac Magnetic Resonance Imaging, Transthoracic Echocardiography Has an Excellent Accuracy in Diagnosing a Left Ventricular Thrombus After an Anterior Myocardial Infarction Complicated With Left Ventricular Dysfunction: Results of a Prospective Multicentric Study

Circulation ◽

10.1161/circ.130.suppl_2.9634 ◽

2014 ◽

Vol 130 (suppl_2) ◽

Author(s):

Philippe Meurin ◽

Virginie Brandao Carreira ◽

Raphaelle D Dumaine ◽

Alain Shqueir ◽

Olivier Milleron ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Myocardial Infarction ◽

Cardiac Magnetic Resonance ◽

Magnetic Resonance ◽

Cardiac Magnetic Resonance Imaging ◽

Antiplatelet Therapy ◽

Transthoracic Echocardiography ◽

Dual Antiplatelet Therapy ◽

Left Ventricular ◽

Resonance Imaging

Introduction: The generalization of reperfusion techniques to treat acute myocardial infarction (MI) has allowed for markedly reduced incidence in left ventricular (LV) thrombi because of the reduced myocardial damage. LV thrombi are estimated to complicate 5% to 10% of unselected anterior-wall MI (Ant-MI). However, the incidence and evolution of LV thrombi in high-risk patients with Ant-MI complicated by LV systolic dysfunction is not well known. Cardiac magnetic resonance imaging with contrast delayed enhancement (CMR-DE) is the gold standard in assessing LV thrombus, but comparisons of transthoracic echocardiography (TTE) and CMR-DE are scarce. Hypothesis: We assessed whether LV thrombi are still frequent after major Ant-MI, despite systematic dual antiplatelet therapy, and whether focused TTE has a good accuracy for detection as compared with CMR-DE. Methods: From 2011 to 2013, from 7 centers, we prospectively included patients with LV ejection fraction (LVEF) < 45% at a first TTE performed < 7 days after Ant-MI. A second evaluation including TTE and CMR-DE (analyzed by blinded examiners) was performed at 30 days. A third TTE and assessment of clinical status and adverse events were performed between months 6 and 12. Results: We included 100 consecutive patients (71% males; mean age 59.1 ± 12.1 years; LVEF 33.5 ± 6.0%) at a mean of 4.8 ± 1.9 days after Ant-MI; 88% had undergone primary coronary angioplasty. In total, 26 patients had LV thrombi detected at a mean of 23.2 ± 34.8 days after MI (6 during the first week after the MI, 16 from days 8 to 30, 4 after day 30). As compared with CMR-DE, TTE sensitivity and specificity were 94.7% and 98.5%, respectively. For 24 patients (92.3%), the LV thrombi disappeared with triple antithrombotic therapy including dual antiplatelet therapy and a vitamin K antagonist. One patient died from a recurrent subdural haematoma and another had a peripheral embolism. Conclusions: In this prospective multicenter study, LV thrombus occurred in 26% of patients after Ant-MI complicated by LV dysfunction. Focused TTE has a high accuracy for detection. CMR-DE should be performed only when the apex is not clearly seen.

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