Search results for: Shi-Joon Yoo

Items from 1 to 20 out of 111 results

article

A case series of left main coronary artery ostial atresia and a review of the literature

Mahmoud Alsalehi, Aamir Jeewa, Andrea Wan, Juan Contreras, more

Congenital Heart Disease > 14 > 6 > 901 - 923

Left main coronary artery ostial atresia (LMCAOA) is a rare congenital anomaly of the coronary arteries. The published literature regarding the current diagnostic and management recommendations are limited. We present three case series of LMCAOA from our institution, including one with a unique association with anomalous origin of left coronary artery (LCA) from pulmonary artery. In addition, this...

article

Increased extracellular volume in the liver of pediatric Fontan patients

Charlotte Lange, Marjolein J. E. Reichert, Joseph J. Pagano, Mike Seed, more

Journal of Cardiovascular Magnetic Resonance > 2019 > 21 > 1 > 1-10

Background Patients with single ventricle physiology are at increased risk for developing liver fibrosis. Its extent and prevalence in children with bidirectional cavopulmonary connection (BCPC) and Fontan circulation are unclear. Extracellular volume fraction (ECV), derived from cardiovascular magnetic resonance (CMR) and T1 relaxometry, reflect fibrotic remodeling and/or congestion in the liver...

article

Mapping versus source methods for quantifying myocardial T1 in controls and in repaired tetralogy of Fallot: interchangeability and reproducibility in children

Christopher Z. Lam, Joseph J. Pagano, Deane Yim, Shi-Joon Yoo, more

Pediatric Radiology > 2019 > 49 > 9 > 1152-1162

Background Myocardial T1 relaxometry can be performed by contouring on individual T1-weighted source images (source method) or on a single T1 map (mapping method). Objective This study compares (a) agreement between native T1 and extracellular volume results of the two methods and (b) interobserver reproducibility of the two methods in children without heart disease and those with tetralogy of Fallot...

article

Dual phase infusion with bolus tracking: technical innovation for cardiac and respiratory navigated magnetic resonance angiography using extracellular contrast

Christopher Z. Lam, Joseph J. Pagano, Navjot Gill, Logi Vidarsson, more

Pediatric Radiology > 2019 > 49 > 3 > 399-406

This technical innovation paper describes a technique for performing cardiac-gated, respiratory-navigated cardiovascular magnetic resonance angiography using an extracellular gadolinium-based contrast agent at 1.5 Tesla (T) with a dual phase bolus injection and slow infusion technique.

article

How many versus how much: comprehensive haemodynamic evaluation of partial anomalous pulmonary venous connection by cardiac MRI

Neil Seller, Shi-Joon Yoo, Brian Grant, Lars Grosse-Wortmann

European Radiology > 2018 > 28 > 11 > 4598-4606

Objectives The objective of this study was to investigate the effect of location and number of anomalously connected pulmonary veins and any associated atrial septal defect (ASD) on the magnitude of left-to-right shunting in patients with partial anomalous pulmonary venous connection (PAPVC), and how that influences right ventricular volume loading. Methods and results The cardiac magnetic resonance...

article

Abdominal imaging findings in adult patients with Fontan circulation

Tae-Hyung Kim, Hyun Kyung Yang, Hyun-Jung Jang, Shi-Joon Yoo, more

Insights into Imaging > 2018 > 9 > 3 > 357-367

The Fontan procedures, designed to treat paediatric patients with functional single ventricles, have markedly improved the patient’s survival into adulthood. The physiology of the Fontan circuit inevitably increases systemic venous pressure, which may lead to multi-system organ failure in the long-term follow-up. Fontan-associated liver disease (FALD) can progress to liver cirrhosis with signs of...

article

Sutureless Versus Conventional Pulmonary Vein Repair: A Magnetic Resonance Pilot Study

Cornelia Tremblay, Shi-Joon Yoo, Luc Mertens, Mike Seed, more

The Annals of Thoracic Surgery > 2018 > 105 > 4 > 1248-1254

Two different surgical techniques are used to repair anomalous pulmonary venous connection or pulmonary vein (PV) stenosis: the classic repair (CR) and the sutureless repair (SR). The purpose of this study was to compare the prevalence of PV stenosis between the two surgical approaches.Patients were prospectively recruited irrespective of symptoms or previous imaging findings. Cardiac magnetic resonance...

article

New advances in fetal cardiovascular magnetic resonance imaging for quantifying the distribution of blood flow and oxygen transport: Potential applications in fetal cardiovascular disease diagnosis and therapy

Liqun Sun, Christopher K. Macgowan, Sharon Portnoy, John G. Sled, more

Echocardiography > 34 > 12 > 1799 - 1803

Until recently, our modern understanding of fetal circulatory physiology has been largely based on invasive measurements made in fetal sheep. However, new MRI technology developed by our group has provided equivalent information about the distribution of blood flow and oxygen transport noninvasively. The initial findings largely confirm prior estimates about the human fetal circulation extrapolated...

article

Magnetic resonance imaging of cardiovascular thrombi in children

Pablo Caro-Dominguez, Shi-Joon Yoo, Mike Seed, Lars Grosse-Wortmann

Pediatric Radiology > 2018 > 48 > 5 > 722-731

Cardiovascular thrombosis is rare in children and usually occurs in the presence of predisposing conditions, such as indwelling vascular catheters, tumors, aneurysms, ventricular dysfunction, or after surgery. Clots can occur in the cardiac chambers, arteries or veins, or inside conduits. Detection of thrombi is feasible with a variety of magnetic resonance imaging (MRI) techniques, including unenhanced...

article

Pediatric Fontan patients are at risk for myocardial fibrotic remodeling and dysfunction

Atsuko Kato, Eugénie Riesenkampff, Deane Yim, Shi-Joon Yoo, more

International Journal of Cardiology > 2017 > 240 > C > 172-177

Patients with single ventricle (SV) circulations are at risk for ventricular dysfunction. This study investigates whether there is evidence of increased myocardial fibrosis and myocardial dysfunction in children after the Fontan operation.Consecutive children after the Fontan operation who underwent cardiac magnetic resonance (CMR) T1 relaxometry with a modified look-locker inversion recovery approach...

article

Hands-on surgical training of congenital heart surgery using 3-dimensional print models

Shi-Joon Yoo, Thomas Spray, Erle H. Austin, Tae-Jin Yun, more

The Journal of Thoracic and Cardiovascular Surgery > 2017 > 153 > 6 > 1530-1540

Patient-based congenital heart surgery (CHS) training is opportunity-based and difficult. Three-dimensional (3D) print models of the heart were used for hands-on surgical training (HOST) at the 2015 AATS and subsequently in 2 local institutions. We aim to introduce the process of 3D printing for surgical simulation and to present the attendee's responses.Using CT or MR angiograms, the models of congenital...

article

Abnormal Myocardial Contractility After Pediatric Heart Transplantation by Cardiac MRI

Heynric B. Grotenhuis, Emile C. A. Nyns, Paul F. Kantor, Anne I. Dipchand, more

Pediatric Cardiology > 2017 > 38 > 6 > 1198-1205

Acute cellular rejection (ACR) compromises graft function after heart transplantation (HTX). The purpose of this study was to describe systolic myocardial deformation in pediatric HTX and to determine whether it is impaired during ACR. Eighteen combined cardiac magnetic resonance imaging (CMR)/endomyocardial biopsy (EMBx) examinations were performed in 14 HTX patients (11 male, age 13.9 ± 4.7 years;...

article

Left Ventricular Function in Children and Adolescents With Arrhythmogenic Right Ventricular Cardiomyopathy

Paweena Chungsomprasong, Robert Hamilton, Wietske Luining, Meena Fatah, more

The American Journal of Cardiology > 2017 > 119 > 5 > 778-784

The aim of this study was to determine if left ventricular (LV) contractility is reduced in children with arrhythmogenic right ventricular cardiomyopathy (ARVC). For this retrospective study, children and adolescents undergoing a workup for ARVC were characterized according to the revised Task Force Criteria (rTFC). LV strain, rotation, and torsion were measured by feature-tracking cardiovascular...

article

Histological validation of cardiovascular magnetic resonance T1 mapping markers of myocardial fibrosis in paediatric heart transplant recipients

Seiko Ide, Eugenie Riesenkampff, David A. Chiasson, Anne I. Dipchand, more

Journal of Cardiovascular Magnetic Resonance > 2017 > 19 > 1 > 1-11

Background Adverse fibrotic remodeling is detrimental to myocardial health and a reliable method for monitoring the development of fibrotic remodeling may be desirable during the follow-up of patients after heart transplantation (HTx). Quantification of diffuse myocardial fibrosis with cardiovascular magnetic resonance (CMR) has been increasingly applied and validated histologically in adult patients...

article

Myocardial Dimensions in Children With Hypertrophic Cardiomyopathy: A Comparison Between Echocardiography and Cardiac Magnetic Resonance Imaging

Jonathan D. Windram, Andreea Dragelescu, Lee Benson, Jonathan Forsey, more

Canadian Journal of Cardiology > 2016 > 32 > 12 > 1507-1512

The primary mode of imaging in hypertrophic cardiomyopathy (HCM) is transthoracic echocardiography (TTE). However, in adults inadequate acoustic windows lead to poor quantification of myocardial thickness compared with cardiac magnetic resonance (CMR) imaging. In comparison, children have better acoustic windows and TTE measurements of wall thickness might be more accurate. The aim of this study was...

article

3D printing in medicine of congenital heart diseases

Shi-Joon Yoo, Omar Thabit, Eul Kyung Kim, Haruki Ide, more

00003D Printing in Medicine > 2016 > 2 > 1 > 1-12

Congenital heart diseases causing significant hemodynamic and functional consequences require surgical repair. Understanding of the precise surgical anatomy is often challenging and can be inadequate or wrong. Modern high resolution imaging techniques and 3D printing technology allow 3D printing of the replicas of the patient’s heart for precise understanding of the complex anatomy, hands-on simulation...

article

Utility and Scope of Rapid Prototyping in Patients with Complex Muscular Ventricular Septal Defects or Double-Outlet Right Ventricle: Does it Alter Management Decisions?

Puneet Bhatla, Justin T. Tretter, Achi Ludomirsky, Michael Argilla, more

Pediatric Cardiology > 2017 > 38 > 1 > 103-114

Rapid prototyping facilitates comprehension of complex cardiac anatomy. However, determining when this additional information proves instrumental in patient management remains a challenge. We describe our experience with patient-specific anatomic models created using rapid prototyping from various imaging modalities, suggesting their utility in surgical and interventional planning in congenital heart...

article

Increased left ventricular myocardial extracellular volume is associated with longer cardiopulmonary bypass times, biventricular enlargement and reduced exercise tolerance in children after repair of Tetralogy of Fallot

Eugénie Riesenkampff, Wietske Luining, Mike Seed, Paweena Chungsomprasong, more

Journal of Cardiovascular Magnetic Resonance > 2017 > 18 > 1 > 1-9

Background Unfavorable left ventricular (LV) remodelling may be associated with adverse outcomes after Tetralogy of Fallot (TOF) repair. We sought to assess T1 cardiovascular magnetic resonance (CMR) markers of diffuse LV myocardial fibrosis in children after TOF repair, and associated factors. Methods In this prospective, cross-sectional study, native (=non-contrast) T1 times and extracellular...

article

Evaluation of knowledge-based reconstruction for magnetic resonance volumetry of the right ventricle after arterial switch operation for dextro-transposition of the great arteries

Emile C. A. Nyns, Andreea Dragulescu, Shi-Joon Yoo, Lars Grosse-Wortmann

The International Journal of Cardiovascular Imaging > 2016 > 32 > 9 > 1415-1423

Right ventricular (RV) volume and function evaluation is essential in the follow-up of patients after arterial switch operation (ASO) for dextro-transposition of the great arteries (d-TGA). Cardiac magnetic resonance (CMR) imaging using the Simpson’s method is the gold-standard for measuring these parameters. However, this method can be challenging and time-consuming, especially in congenital heart...

article

MRI reveals hemodynamic changes with acute maternal hyperoxygenation in human fetuses with and without congenital heart disease

Prashob Porayette, Sujana Madathil, Liqun Sun, Edgar Jaeggi, more

Prenatal Diagnosis > 36 > 3 > 274 - 281

Objective We investigated the physiologic impact of acute maternal hyperoxygenation (MH) in human fetuses with and without congenital heart disease (CHD) using fetal cardiac magnetic resonance (CMR) in order to explore the potential therapeutic benefits of chronic MH. Methods We examined 17 normal and 20 late gestation human fetuses with CHD on a 1.5 T CMR system. Flows were measured in major fetal...

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MAGNETIC RESONANCE IMAGING (16)
CHILDREN (12)
CONGENITAL HEART DISEASE (11)
TETRALOGY OF FALLOT (7)
ECHOCARDIOGRAPHY (6)
T1 MAPPING (5)
CARDIAC MRI (4)
CARDIOVASCULAR MAGNETIC RESONANCE (4)
HEART (4)
3D PRINTING (3)
CARDIAC MAGNETIC RESONANCE (3)
CARDIAC MAGNETIC RESONANCE IMAGING (3)
HYPERTROPHIC CARDIOMYOPATHY (3)
MR (3)
MRI (3)
PHASE CONTRAST (3)
BLOOD FLOW (2)
CARDIAC TUMOR (2)
CHEST RADIOGRAPHY (2)
FETAL MRI (2)
FETUS (2)
FONTAN (2)
GATING (2)
IMAGE METRIC (2)
LIVER CIRRHOSIS (2)
MAGNETIC RESONANCE (2)
MYOCARDIAL FIBROSIS (2)
POST‐PROCESSING (2)
PULMONARY VEIN (2)
PULMONARY VEIN STENOSIS (2)
PULMONARY VEINS (2)
SCIMITAR SYNDROME (2)
SINGLE VENTRICLE (2)
SURGICAL SIMULATION (2)
VOLUMETRY (2)
20 (1)
22Q11 DELETION (1)
3D PRINT MODELS (1)
ACUTE CELLULAR REJECTION (1)
ADOLESCENT (1)
ADOLESCENTS (1)
ANGIOGRAPHY (1)
AORTIC REGURGITATION (1)
ARTERY (1)
ATRESIA (1)
ATRIAL FIBRILLATION (1)
BIDIRECTIONAL CAVOPULMONARY CONNECTION (1)
BILATERAL PATENT DUCTUS ARTERIOSI (1)
BLOOD OXYGEN SATURATION (1)
CARDIAC CATHETERIZATION (1)
CARDIAC CT (1)
CARDIAC IMAGING (1)
CARDIAC VOLUME (1)
CARDIOVASCULAR (1)
CARDIOVASCULAR MAGNETIC RESONANCE IMAGING (1)
CELIAC DISEASE (1)
CHILD (1)
CIRRHOSIS (1)
COMMON ARTERIAL TRUNK (1)
COMPUTED TOMOGRAPHY (1)
CONGENITAL BRAIN TUMOR GLIOBLASTOMA FETAL SONOGRAPHY (1)
CONGENITAL CARDIOVASCULAR ANOMALY (1)
CONGENITAL EXTRAHEPATIC PORTOSYSTEMIC SHUNT (1)
CONGENITAL HEART DEFECT (1)
CONGENITAL HEART DISEASE, PULMONARY VEIN STENOSIS, MAGNETIC RESONANCE IMAGING, COMPUTED TOMOGRAPHY, PREDICTIVE MODEL, SURVIVAL (1)
CONGENITAL HEART SURGERY (1)
CONTRAST (1)
CONTRAST-ENHANCED MR ANGIOGRAPHY (1)
CORONARY (1)
CORONARY SINUS ANOMALIES (1)
CORONARY SINUS DIVERTICULUM (1)
CORONARY SINUS ENLARGEMENT (1)
CORONARY SINUS OSTIAL ATRESIA (1)
CORRELATION ANALYSIS (1)
CT SCAN (1)
DEXTRO-TRANSPOSITION OF THE GREAT ARTERIES (1)
DIAGNOSIS (1)
DIAGNOSTIC IMAGING (1)
DIFFERENTIAL PULMONARY BLOOD FLOW (1)
DIFFUSE FIBROSIS (1)
DIFFUSE MYOCARDIAL FIBROSIS (1)
DIGESTIVE SYSTEM NEOPLASMS (1)
DOPPLER (1)
DOUBLE-OUTLET RIGHT VENTRICLE (1)
DUAL PHASE (1)
EXERCISE (1)
EXTRACELLULAR VOLUME FRACTION (1)
FENESTRATION (1)
FETAL ECHOCARDIOGRAPHY (1)
FETAL MAGNETIC RESONANCE IMAGING (1)
FIBROMA (1)
FIBROSIS (1)
FLOW QUANTIFICATION (1)
FOCAL NODULAR HYPERPLASIA (1)
FONTAN CIRCULATION (1)
GADOLINIUM DELAYED ENHANCEMENT (1)
GENERAL ANESTHESIA (1)
HANDS-ON SURGICAL TRAINING (1)
HEARING LOSS (1)
HEART DEFECTS, CONGENITAL (1)
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Springer (65)
Elsevier (36)
Wiley (10)

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Search results for: Shi-Joon Yoo

A case series of left main coronary artery ostial atresia and a review of the literature

Increased extracellular volume in the liver of pediatric Fontan patients

Mapping versus source methods for quantifying myocardial T1 in controls and in repaired tetralogy of Fallot: interchangeability and reproducibility in children

Dual phase infusion with bolus tracking: technical innovation for cardiac and respiratory navigated magnetic resonance angiography using extracellular contrast

How many versus how much: comprehensive haemodynamic evaluation of partial anomalous pulmonary venous connection by cardiac MRI

Abdominal imaging findings in adult patients with Fontan circulation

Sutureless Versus Conventional Pulmonary Vein Repair: A Magnetic Resonance Pilot Study

New advances in fetal cardiovascular magnetic resonance imaging for quantifying the distribution of blood flow and oxygen transport: Potential applications in fetal cardiovascular disease diagnosis and therapy

Magnetic resonance imaging of cardiovascular thrombi in children

Pediatric Fontan patients are at risk for myocardial fibrotic remodeling and dysfunction

Hands-on surgical training of congenital heart surgery using 3-dimensional print models

Abnormal Myocardial Contractility After Pediatric Heart Transplantation by Cardiac MRI

Left Ventricular Function in Children and Adolescents With Arrhythmogenic Right Ventricular Cardiomyopathy

Histological validation of cardiovascular magnetic resonance T1 mapping markers of myocardial fibrosis in paediatric heart transplant recipients

Myocardial Dimensions in Children With Hypertrophic Cardiomyopathy: A Comparison Between Echocardiography and Cardiac Magnetic Resonance Imaging

3D printing in medicine of congenital heart diseases

Utility and Scope of Rapid Prototyping in Patients with Complex Muscular Ventricular Septal Defects or Double-Outlet Right Ventricle: Does it Alter Management Decisions?

Increased left ventricular myocardial extracellular volume is associated with longer cardiopulmonary bypass times, biventricular enlargement and reduced exercise tolerance in children after repair of Tetralogy of Fallot

Evaluation of knowledge-based reconstruction for magnetic resonance volumetry of the right ventricle after arterial switch operation for dextro-transposition of the great arteries

MRI reveals hemodynamic changes with acute maternal hyperoxygenation in human fetuses with and without congenital heart disease

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