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pediatric cardiac imaging

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https://www.readbyqxmd.com/read/28236133/subjective-and-objective-image-differences-in-pediatric-computed-tomography-cardiac-angiography-using-lower-iodine-concentration
#1
Jae-Yeon Hwang, Ki Seok Choo, Yoon Young Choi, Jin Hyeok Kim, Hwaseong Ryu, Junhee Han, Yong-Woo Kim, Ung Bae Jeon, Kyung Jin Nam
BACKGROUND: Several recent studies showed the optimal contrast enhancement with a low-concentration and iso-osmolar contrast media in both adult and pediatric patients. However, low contrast media concentrations are not routinely used due to concerns of suboptimal enhancement of cardiac structures and small vessels. OBJECTIVE: To evaluate the feasibility of using iso-osmolar contrast media containing a low iodine dose for CT cardiac angiography at 80 kilovolts (kVp) in neonates and infants...
February 24, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28210569/infant-acute-myocarditis-mimicking-acute-myocardial-infarction
#2
Maher Jedidi, Samia Tilouche, Tasnim Masmoudi, Maha Sahnoun, Youssef Chkirbène, Sarra Mestiri, Lamia Boughamoura, Mohamed Ben Dhiab, Mohamed Kamel Souguir
Myocarditis is an inflammatory disease of the myocardium with heterogeneous clinical manifestations and progression. In clinical practice, although there are many methods of diagnosis of acute myocarditis, the diagnosis remains an embarrassing dilemma for clinicians. The authors report the case of 9-month-old infant who was brought to the Pediatric Emergency Department with sudden onset dyspnea. Examination disclosed heart failure and resuscitation was undertaken. The electrocardiogram showed an ST segment elevation in the anterolateral leads with a mirror image...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28198527/coexistence-of-bicuspid-aortic-valve-aberrant-right-subclavian-artery-and-common-origin-of-carotid-arteries
#3
Paweł Tyczyński, Ilona Michałowska, Aneta Fronczak, Rafał Wolny, Hubert Łazarczyk, Zbigniew Chmielak, Adam Witkowski
BACKGROUND: Prevalence of bicuspid aortic valve (BAV) and right aberrant subclavian artery (ASA) separately is relatively common in general population, and much higher in some disorders. Surprisingly, coexistence of both valve and vessel anomalies has only been reported in single cases. METHODS: From 2008 to 2016, in a single, high-volume tertiary cardiac center, patients who underwent chest computed tomography or magnetic resonance imaging for various reasons, were retrospectively screened for the presence of right ASA...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28185475/4d-flow-magnetic-resonance-imaging-role-in-pediatric-congenital-heart-disease
#4
Claire M Lawley, Kathryn M Broadhouse, Fraser M Callaghan, David S Winlaw, Gemma A Figtree, Stuart M Grieve
Imaging-based evaluation of cardiac structure and function remains paramount in the diagnosis and monitoring of congenital heart disease in childhood. Accurate measurements of intra- and extracardiac hemodynamics are required to inform decision making, allowing planned timing of interventions prior to deterioration of cardiac function. Four-dimensional flow magnetic resonance imaging is a nonionizing noninvasive technology that allows accurate and reproducible delineation of blood flow at any anatomical location within the imaging volume of interest, and also permits derivation of physiological parameters such as kinetic energy and wall shear stress...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28163438/a-rare-case-of-cardiac-tumor-in-a-child
#5
Mallar Mukharjee, Jigna N Bathia, Apurba Ghosh, Anil Kumar Singhi
Pediatric cardiac tumors are rare and usually benign. An infectious etiology like tuberculosis invading myocardium and presenting as infiltrative mass is extremely rare. We present a case of a 15 month old girl with clinical feature of cardiac failure who had infiltrative multiple myocardial masses in echocardiogram. Advanced cardiac imaging by Cardiac Magnetic resonance imaging (MRI) helped in tissue delineation. Therapeutic trial of anti-tubercular drugs in view clinical suspicion of Tuberculosis resulted in complete remission of symptom and disappearance of the cardiac mass...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28103933/quantification-of-myocardial-deformation-in-children-by-cardiovascular-magnetic-resonance-feature-tracking-determination-of-reference-values-for-left-ventricular-strain-and-strain-rate
#6
Florian André, Daniëlle Robbers-Visser, Astrid Helling-Bakki, Angela Föll, Andreas Voss, Hugo A Katus, Willem A Helbing, Sebastian J Buss, Joachim G Eichhorn
BACKGROUND: The objective assessment of global and regional cardiac function in children has shown to be clinically relevant but is challenging to conduct. Cardiovascular magnetic resonance (CMR) has emerged as a valuable diagnostic modality especially in patients with cardiomyopathy or congenital heart disease. However, data on the normal cardiac deformation in children assessed by CMR is lacking at present. Thus, the aim of this study was to provide reference values for cardiac strain and strain rate in children and adolescents derived from CMR feature tracking (FT) measurements...
December 5, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28081128/radiation-exposure-from-diagnostic-imaging-in-a-cohort-of-pediatric-transplant-recipients
#7
Alexandra Seal, Michael Hawkes, Ravi Bhargava, Michelle Noga, Jutta Preiksaitis, Curtis Mabilangan, Joan Robinson
Recipients of solid organ transplants (SOT) have extensive diagnostic imaging (DI). The purpose of this study was to quantify this exposure. Children from northern Alberta with SOTs at Stollery Children's Hospital, Edmonton, Alberta January 1, 2006, to July 31, 2012, were included. Effective doses of radiation were estimated using published norms for DI performed post-transplant up to October 16, 2014. The 54 eligible children had 6215 DI studies (5628 plain films, 293 computerized tomography (CT) scans, 149 positron emission topography (PET) -CT scans, 47 nuclear medicine scans and 98 cardiac catheterizations)...
2017: PloS One
https://www.readbyqxmd.com/read/28060123/whole-body-mri-virtual-autopsy-using-diffusion-weighted-imaging-with-background-suppression-dwibs-at-3-t-in-a-child-succumbing-to-chordoma
#8
Savvas Andronikou, Marnie L Kemp, Michelle Meiring
BACKGROUND: We report the use of diffusion-weighted imaging with background suppression (DWIBS) in pediatric virtual magnetic resonance imaging (MRI) autopsy of a child who succumbed to chordoma. CASE DESCRIPTION: A 10-year-old girl who succumbed to relapse of a chordoma underwent whole-body virtual MRI autopsy 12 hours postmortem with short Tau inversion recovery (STIR) and DWIBS on 3 T, which demonstrated the primary mass, local and cardiac invasion, and metastatic disease to the thorax, abdomen, head/neck, and musculoskeletal system...
March 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28058227/magnetic-resonance-imaging-of-the-transplanted-pediatric-heart-as-a-potential-predictor-of-rejection
#9
Steven C Greenway, Frederic Dallaire, Paul F Kantor, Anne I Dipchand, Rajiv R Chaturvedi, Monali Warade, Eugenie Riesenkampff, Shi-Joon Yoo, Lars Grosse-Wortmann
AIM: To evaluate cardiac magnetic resonance imaging (CMR) as a non-invasive tool to detect acute cellular rejection (ACR) in children after heart transplant (HT). METHODS: Thirty pediatric HT recipients underwent CMR at the time of surveillance endomyocardial biopsy (EMB) and results were compared to 14 non-transplant controls. Biventricular volumes, ejection fractions (EFs), T2-weighted signal intensities, native T1 times, extracellular volumes (ECVs) and presence of late gadolinium enhancement (LGE) were compared between patients and controls and between patients with International Society of Heart and Lung Transplantation (ISHLT) grade ≥ 2R rejection and those with grade 0/1R...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28048400/th-b-207b-00-pediatric-image-quality-optimization
#10
Christina Sammet
: This imaging educational program will focus on solutions to common pediatric image quality optimization challenges. The speakers will present collective knowledge on best practices in pediatric imaging from their experience at dedicated children's hospitals. One of the most commonly encountered pediatric imaging requirements for the non-specialist hospital is pediatric CT in the emergency room setting. Thus, this educational program will begin with optimization of pediatric CT in the emergency department...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047755/th-b-207b-01-optimizing-pediatric-ct-in-the-emergency-department
#11
C Dodge
: This imaging educational program will focus on solutions to common pediatric image quality optimization challenges. The speakers will present collective knowledge on best practices in pediatric imaging from their experience at dedicated children's hospitals. One of the most commonly encountered pediatric imaging requirements for the non-specialist hospital is pediatric CT in the emergency room setting. Thus, this educational program will begin with optimization of pediatric CT in the emergency department...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046437/th-b-207b-02-optimizing-pediatic-cardiovascular-mri
#12
J Deng
: This imaging educational program will focus on solutions to common pediatric image quality optimization challenges. The speakers will present collective knowledge on best practices in pediatric imaging from their experience at dedicated children's hospitals. One of the most commonly encountered pediatric imaging requirements for the non-specialist hospital is pediatric CT in the emergency room setting. Thus, this educational program will begin with optimization of pediatric CT in the emergency department...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28035425/myocardial-stress-perfusion-magnetic-resonance-initial-experience-in-a-pediatric-and-young-adult-population-using-regadenoson
#13
Cory V Noel, Ramkumar Krishnamurthy, Brady Moffett, Rajesh Krishnamurthy
BACKGROUND: Dipyridamole and adenosine are traditional pharmacological stressors for myocardial perfusion. Regadenoson, a selective adenosine A2A agonist, has a lower side effect profile with lower incidence of bronchospasm and bradycardia. There is a growing need for myocardial perfusion assessment within pediatrics. There is no report on the utility of regadenoson as a stress agent in children. OBJECTIVE: To observe the safety and feasibility of regadenoson as a pharmacologic stressor for perfusion cardiac MR in a pilot cohort of pediatric patients weighing more than 40 kg who have congenital heart disease and pediatric acquired heart disease...
December 29, 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/27996161/medium-term-assessment-of-cardiac-function-in-pediatric-cancer-survivors-comparison-of-different-echocardiographic-methods-cardiac-mri-and-cardiac-biomarker-testing-in-adolescent-cancer-survivors
#14
Sanket S Shah, Wendy McClellan, Joshua Q Knowlton, Jeet Mehta, Suma Goudar, Angela Ferguson, Ashley Sherman, Girish Shirali, Joy Fulbright
PURPOSE: To evaluate the feasibility and correlation of 3D echocardiography (echo) and cardiac biomarkers with cardiac MRI, in surveillance of cardiac function for cancer survivors. METHODS: Subjects ≥10 years of age who have survived >2 years after completion of cancer treatment from a single center were enrolled. Cardiac MRI and 3D echo images were obtained on the same day when routine echo was obtained. On the same day, along with annual routine blood test, cardiac biomarkers N-terminal pro-B-type natriuretic peptide levels (NT-proBNP) and troponin-I levels were also measured...
December 20, 2016: Echocardiography
https://www.readbyqxmd.com/read/27931578/pretransplant-left-ventricular-dysfunction-adversely-affects-perioperative-outcomes-in-pediatric-liver-transplantation-a%C3%A2-retrospective-observational-study
#15
D-M Jang, I-G Jun, Y-J Moon, W-J Shin, J-G Song, G-S Hwang
BACKGROUND: Although left ventricular diastolic dysfunction (LVDD) is a pronounced feature of adult cirrhotic cardiomyopathy and a major predictor of poor outcomes following liver transplantation (LT), little is known about if pretransplant cardiac dysfunction affects perioperative outcomes in pediatric LT. METHODS: We retrospectively evaluated pretransplant clinical and Doppler echocardiographic data for 45 consecutive pediatric LT recipients who were treated between 2007 and 2013 (median age = 15 months; interquartile range = 9 to 78 months)...
December 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27872783/multimodality-cardiac-imaging-in-a-patient-with-kawasaki-disease-and-giant-aneurysms
#16
Ranjini Srinivasan, Rachel Weller, Anjali Chelliah, Andrew J Einstein
Kawasaki disease is a well-known cause of acquired cardiac disease in the pediatric and adult population, most prevalent in Japan but also seen commonly in the United States. In the era of intravenous immunoglobulin (IVIG) treatment, the morbidity associated with this disease has decreased, but it remains a serious illness. Here we present the case of an adolescent, initially diagnosed with Kawasaki disease as an infant, that progressed to giant aneurysm formation and calcification of the coronary arteries...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27866017/safety-of-optical-coherence-tomography-in-pediatric-heart-transplant-patients
#17
Sarah M Ulrich, Anja Lehner, Julia Birnbaum, Stefanie Heckel, Nikolaus A Haas, Lale Hakami, Rene Schramm, Robert Dalla Pozza, Marcus Fischer, Rainer Kozlik-Feldmann
BACKGROUND: Cardiac allograft vasculopathy (CAV) is a crucial problem after heart transplantation, in adults as well as in children. CAV is the main risk factor for a reduced long-term graft survival. The early diagnosis and treatment of CAV is essential for a successful long-term preservation of the donor heart. However, asymptomatic progression of CAV and concentric hyperplasia of the coronary arteries may complicate the early diagnosis by conventional measures. Intravascular imaging, such as intravascular ultrasound and optical coherence tomography (OCT), enables the diagnosis of early stage CAV...
February 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27862507/accelerated-ferumoxytol-enhanced-4d-multiphase-steady-state-imaging-with-contrast-enhancement-music-cardiovascular-mri-validation-in-pediatric-congenital-heart-disease
#18
Ziwu Zhou, Fei Han, Stanislas Rapacchi, Kim-Lien Nguyen, Daniel Z Brunengraber, Grace-Hyun J Kim, J Paul Finn, Peng Hu
The purpose of this work was to validate a parallel imaging (PI) and compressed sensing (CS) combined reconstruction method for a recently proposed 4D non-breath-held, multiphase, steady-state imaging technique (MUSIC) cardiovascular MRI in a cohort of pediatric congenital heart disease patients. We implemented a graphics processing unit accelerated CS-PI combined reconstruction method and applied it in 13 pediatric patients who underwent cardiovascular MRI after ferumoxytol administration. Conventional breath-held contrast-enhanced magnetic resonance angiography (CE-MRA) was first performed during the first pass of ferumoxytol injection, followed by the original MUSIC and the proposed CS-PI MUSIC during the steady-state distribution phase of ferumoxytol...
January 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/27834765/a-comparison-of-perioperative-management-of-anomalous-aortic-origin-of-a-coronary-artery-between-an-adult-and-pediatric-cardiac-center
#19
Jeremy L Herrmann, Leah A Goldberg, Abigail M Khan, Sara L Partington, Julie A Brothers, Christopher E Mascio, Thomas L Spray, Yuli Y Kim, Stephanie Fuller
BACKGROUND: Anomalous aortic origin of a coronary artery (AAOCA) presents in varying age-groups. Assuming management algorithms differ between pediatric and adult institutions, we compared the perioperative management of patients with AAOCA at two such centers. METHODS: A retrospective review was conducted at a pediatric and an adult institution of patients 14 years or older who underwent surgical repair of AAOCA between January 2000 and May 2014. RESULTS: Twenty patients from the pediatric center (median age: 16...
November 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27828868/prenatal-diagnosis-and-genetic-discoveries-of-an-intracranial-mixed-neuronal-glial-tumor-a-case-report-and-literature-review
#20
Lijuan Sun, Qingqing Wu, Yan Pei, Jinghua Li, Jintang Ye, Wenxue Zhi, Yan Liu, Puqing Zhang
BACKGROUND: Congenital intracranial tumors as a group are quite rare, representing only 0.5% to 1.5% of all pediatric brain neoplasms. CASE REPORT: We reported a case of congenital mixed neuronal-glial tumor detected by ultrasound at 30 weeks of gestation. It showed that the tumor was 2.5 × 2.3 × 2.1 cm in size, located in the sellar region, regular shape, and slightly heterogeneous solid mass with a little cystic component. No color flow was present inside the tumor, but the peripheral encirclement by arterial circle of Willis...
November 2016: Medicine (Baltimore)
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