Applicability of the Leiden Convention and the Lipton Classification in Patients with a Single Coronary Artery in the Setting of Congenital Heart Disease.

In single coronary artery (SCA) anatomy, all coronary tributaries arise from a single ostium, providing perfusion to the entire myocardium. Coronary classification systems can facilitate the description of SCA anatomy. Evaluation of the applicability of Lipton classification and the Leiden Convention coronary coding system in SCA.

Hepatic steatosis as an independent risk factor for severe disease in patients with COVID-19: A computed tomography study.

Background And Aim: Hepatic steatosis (HS) is associated with diabetes, hypertension, and obesity, comorbidities recently related to COVID-19 severity. Here, we assessed if tomographic HS is also a risk factor for severe COVID-19 pneumonia.

Methods: We included 213 patients with a positive real time polymerase chain reaction (RT-PCR) test and chest computed tomography (CT) from an out-hospital facility and a hospital.

Elastographic ultrasound: an additional image tool in Sjögren's syndrome.

Aim: To evaluate the stiffness of parotid and submandibular glands using elastography ultrasound and to correlate it with B-mode ultrasonographical, clinical and serological features, salivary profibrotic and inflammatory chemokines, and salivary gland fibrosis.

Methods: We performed B-mode and elastography ultrasound of major salivary glands of 26 patients with primary Sjögren's syndrome. We registered the shear wave velocity (SWV) and correlated it with the morphologic ultrasonographic changes assessed by the Hocevar scale.

[Prevalence and extent of coronary artery calcification in an asymptomatic cardiovascular Mexican population: Genetics of Atherosclerotic Disease study].

Objective: The prevalence of coronary artery calcification (CAC), a specific marker of atherosclerosis, is unknown in Mexico. Our aim was to investigate the prevalence and quantity of CAC and their association with cardiovascular risk factors in a Mexican population.

Methods: CAC was measured by multidetector computed tomography in asymptomatic subjects who participated in the Genetics of Atherosclerotic Disease study.

[Evaluation of cardiac tumors by multidetector computed tomography and magnetic resonance imaging].

Cardiac tumors, are a rare pathology (0.002-0.3%) in all age groups, however, they have a clinic importance, due the affected organ.

In-hospital mortality risk factors for patients with cerebral vascular events in infectious endocarditis. A correlative study of clinical, echocardiographic, microbiologic and neuroimaging findings.

Objective: Cardiac complications in infectious endocarditis (IE) are seen in nearly 50% of cases, and systemic complications may occur. The aim of the present study was to determine the characteristics of inpatients with IE who suffered acute neurologic complications and the factors associated with early mortality.

Methods: From January 2004 to May 2010, we reviewed clinical and imaging charts of all of the patients diagnosed with IE who presented a deficit suggesting a neurologic complication evaluated with Computed Tomography or Magnetic Resonance within the first week.

A pilot study on dual-energy computed tomography for detection of urate deposits in renal transplant patients with asymptomatic hyperuricemia.

Background: An increasing role of dual-energy computed tomography (DECT) scan in tophaceous gout assessment is recognized, whereas its role in asymptomatic hyperuricemia is unknown.

Objective: The objective of this study was to assess the prevalence of joint and renal monosodium urate deposits by DECT in asymptomatic hyperuricemia.

Methods: Among a renal transplant population with at least 1 year of follow-up, we included 27 patients with sustained hyperuricemia and 11 with normal serum uric acid (SUA) levels.

Fatty liver largely explains associations of subclinical hypothyroidism with insulin resistance, metabolic syndrome, and subclinical coronary atherosclerosis.

Background: The association of subclinical hypothyroidism (SCH) with insulin resistance, metabolic syndrome (MS), and coronary atherosclerosis is uncertain.

Objective: To investigate the role of increased intrahepatic fat in the association of SCH with insulin resistance, MS, and coronary atherosclerosis.

Design, Patients, And Methods: We conducted a cross-sectional study in a sample of 753 subjects (46% males) aged 35-70 years with no history of diabetes, renal, hepatic, thyroid, or coronary heart disease, and were participants of the Genetics of Atherosclerotic Disease study.

IL-24 gene polymorphisms are associated with cardiometabolic parameters and cardiovascular risk factors but not with premature coronary artery disease: the genetics of atherosclerotic disease Mexican study.

Coronary artery disease (CAD) is a multifactorial and polygenic disorder that results from an excessive inflammatory response. We analyzed whether interleukin-24 (IL-24) gene polymorphisms are associated with premature CAD in a case-control association study. Four polymorphisms (rs1150253, rs1150256, rs1150258, and rs3762344) of the IL-24 gene were analyzed by 5' exonuclease TaqMan genotyping assays in a group of 952 patients with premature CAD, 284 individuals with subclinical atherosclerosis (SA), and 912 controls.

Agreement between ST elevation and late enhancement evaluated by MRI in patients with acute myocarditis.

Background: ECG is widely used in the evaluation of patients with acute myocarditis. Magnetic resonance imaging (MRI) has emerged as the most important imaging tool in the diagnosis of myocarditis. The objective of this study is to determine the agreement between ECG and MRI findings in patients with acute myocarditis.

Single coronary artery: spectrum of imaging findings with multidetector CT.

Single coronary artery is a rare congenital anomaly in which a single artery arises from the aorta. The anomalous single trunk supplies blood to the entire heart. It is classified according to its origin, branching pattern, and course.

Single nucleotide polymorphisms within LIPA (Lysosomal Acid Lipase A) gene are associated with susceptibility to premature coronary artery disease. a replication in the genetic of atherosclerotic disease (GEA) Mexican study.

Aim: The rs1412444 and rs2246833 polymorphisms within the LIPA gene were recently found to be significantly associated with coronary artery disease (CAD) in genome-wide association studies in Caucasian and Asian populations. The aim of the present study was to replicate this association in an independent population with a different genetic background.

Methods: The rs1412444 and rs2246833 polymorphisms of the LIPA gene were genotyped by 5' exonuclease TaqMan genotyping assays in a sample of 899 Mexican patients with premature CAD, 270 individuals with subclinical atherosclerosis, and 677 healthy unrelated controls.

Dual-source 256-MDCT for diagnosis of anomalous pulmonary venous drainage in pediatric population.

Objective: The purpose of this study is to describe the MDCT findings of anomalous pulmonary venous drainage (APVD) in a pediatric population using a 256-MDCT dual-source scanner with a high-pitch protocol.

Conclusion: MDCT is a fast and noninvasive technique that allows detailed and comprehensive visualization of APVD characteristics in a pediatric population. High-pitch acquisitions with scanners using a high volume of coverage permit low radiation doses and are an accurate modality for assessing these patients.

Fatty liver increases the association of metabolic syndrome with diabetes and atherosclerosis.

Objective: To analyze the participation of fatty liver (FL) in the association of metabolic syndrome (MS) with type 2 diabetes and coronary artery calcification (CAC).

Research Design And Methods: A total of 765 subjects (52% women) aged 30 to 75 years without clinical atherosclerosis were included in this study. MS was defined in accordance with the Adult Treatment Panel III (ATPIII) guidelines, while FL and CAC were identified by computed tomography.

The ABCA1 gene R230C variant is associated with decreased risk of premature coronary artery disease: the genetics of atherosclerotic disease (GEA) study.

Background: ABCA1 genetic variation is known to play a role in HDL-C levels and various studies have also implicated ABCA1 variation in cardiovascular risk. The functional ABCA1/R230C variant is frequent in the Mexican population and has been consistently associated with low HDL-C concentrations. Although it has been associated with other cardiovascular risk factors such as obesity and type 2 diabetes mellitus, it is not known whether it is associated with coronary artery disease (CAD).

Left ventricular noncompaction: a proposal of new diagnostic criteria by multidetector computed tomography.

Background: Left ventricular noncompaction (LVNC) is a cardiomyopathy characterized by a noncompacted myocardial layer in the left ventricle, primarily diagnosed by echocardiographic and magnetic resonance criteria. Multidetector computed tomography (MDCT) is an imaging method that has been increasingly used in cardiac evaluation. However, tomographic criteria to diagnose LVNC have not been determined.

Extremely rare single right coronary artery: multidetector computed tomography findings.

Coronary anomalies are rare, with a reported prevalence of 1.3% among patients who undergo coronary angiography. The great majority of coronary artery anomalies are incidental findings and are not clinically significant, but in some cases, may be responsible for angina, syncope, arrhythmias or even sudden death.

[Randomized, controlled trial, to assess the efficacy of two vascular compression techniques in reducing complications at vascular access sites after therapeutic or diagnostic catheterization].

Objective: To compare the incidence of hemostatic failure and rate of vascular events during and after vascular compression using two different techniques.

Methods: Patients were randomized to mechanical or manual compression after a therapeutic or diagnostic catheterization procedure.

Results: One hundred patients were enrolled in the mechanical compression group (group one) and 112 patients in the manual compression group (group two).

Multidetector computed tomography of congenital anomalies of the thoracic aorta.

Congenital abnormalities may affect any segment of the thoracic aorta. Their clinical presentation is quite variable, and some may require prompt and precise diagnosis to avoid complications. Associated cardiovascular comorbidities are common, and their presence and type may significantly affect prognosis, management, and patient outcome.

Cor triatriatum sinister versus bowed septum primum in an infant with total anomalous pulmonary venous connection: a difficult imaging distinction.

In cor triatriatum sinister, a membrane divides the left atrium into a posterior chamber that receives the pulmonary veins and an anterior chamber that communicates with the mitral valve. With right-side chamber overload, the septum primum can separate from the muscular septum and bow toward the left atrial cavity, leading to a thin membrane within the left atrium and imaging findings that may mimic cor triatriatum. We report the multidetector CT findings of a 3-month-old infant with a supracardiac total anomalous pulmonary venous connection with a bowed septum primum.

Coronary CT angiography in Takayasu arteritis.

Objectives: The aim of this study was to use coronary computed tomographic (CT) angiography to characterize coronary artery involvement in patients with known Takayasu arteritis who present with anginal chest pain or shortness of breath.

Background: Takayasu arteritis is a primary vasculitis of the large vessels, which mainly affects the aorta and its branches but can also involve the coronary arteries. Coronary CT angiography allows visualization of the coronary vessels and can be used to detect both stenotic and nonstenotic coronary artery lesions.

[The importance of multi-imaging diagnosis in cardiology].

Cardiovascular imaging is one of the disciplines in cardiology with the most recent advances. This means that the teaching of Cardiology must evolve in the same way. In 2009, the American College of Cardiology published a statement, which points out that all of the cardiology residents must have basic training in every one of the cardiovascular imaging modalities available.

[Multidetector computed angiography: a new era in the evaluation of pulmonary thromboembolism].

Pulmonary embolism is a major cause of worldwide morbidity and mortality. It is a common cause of cardiovascular care, second only to ischemic heart disease and cerebrovascular events, with a prevalence of 3 to 15%, and its diagnosis remains crucial in the early hours of symptom onset. Given its clinical variability, it has become a diagnostic challenge in the emergency rooms, thus a fast and accurate paraclinical evaluation is needed.