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Pediatric Radiology

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https://www.readbyqxmd.com/read/28631157/performance-characteristics-of-magnetic-resonance-imaging-without-contrast-agents-or-sedation-in-pediatric-appendicitis
#1
Ryne A Didier, Katharine L Hopkins, Fergus V Coakley, Sanjay Krishnaswami, David M Spiro, Bryan R Foster
BACKGROUND: Magnetic resonance imaging (MRI) has emerged as a promising modality for evaluating pediatric appendicitis. However optimal imaging protocols, including roles of contrast agents and sedation, have not been established and diagnostic criteria have not been fully evaluated. OBJECTIVE: To investigate performance characteristics of rapid MRI without contrast agents or sedation in the diagnosis of pediatric appendicitis. MATERIALS AND METHODS: We included patients ages 4-18 years with suspicion of appendicitis who underwent rapid MRI between October 2013 and March 2015 without contrast agent or sedation...
June 19, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28631156/diagnosis-of-secondary-pulmonary-lymphangiectasia-in-congenital-heart-disease-a-novel-role-for-chest-ultrasound-and-prognostic-implications
#2
Christopher Z Lam, Tanmay Anant Bhamare, Tamadhir Gazzaz, David Manson, Tilman Humpl, Mike Seed
BACKGROUND: Secondary pulmonary lymphangiectasia is a complication of congenital heart disease that results from chronic pulmonary venous obstruction. OBJECTIVES: We aimed to evaluate the performance of chest ultrasound (US) in diagnosing secondary pulmonary lymphangiectasia and to review the clinical course of children with secondary pulmonary lymphangiectasia. MATERIALS AND METHODS: Chest US was performed on 26 children with hypoplastic left heart syndrome, total anomalous pulmonary venous connection or cor triatriatum in a prospective observational study...
June 19, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28623417/a-validated-clinical-mri-injury-scoring-system-in-neonatal-hypoxic-ischemic-encephalopathy
#3
Shamik B Trivedi, Zachary A Vesoulis, Rakesh Rao, Steve M Liao, Joshua S Shimony, Robert C McKinstry, Amit M Mathur
BACKGROUND: Deep nuclear gray matter injury in neonatal hypoxic-ischemic encephalopathy (HIE) is associated with worse neurodevelopmental outcomes. We previously published a qualitative MRI injury scoring system utilizing serial T1-weighted, T2-weighted and diffusion-weighted imaging (DWI), weighted for deep nuclear gray matter injury. OBJECTIVES: To establish the validity of the MRI scoring system with neurodevelopmental outcome at 18-24 months. MATERIALS AND METHODS: MRI scans from neonates with moderate to severe HIE treated with therapeutic hypothermia were evaluated...
June 16, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28623416/identifying-intestinal-malrotation-on-magnetic-resonance-examinations-ordered-for-unrelated-indications
#4
Jill S Fay, Victoria Chernyak, Benjamin H Taragin
BACKGROUND: Anatomical imaging findings indicating normal bowel rotation can be identified on cross-sectional imaging, including magnetic resonance imaging (MRI) performed for non-related indications. OBJECTIVE: The goal of our study was to assess whether non-targeted MRI can accurately assess intestinal malrotation. MATERIALS AND METHODS: Four anatomical landmarks were assessed on MRIs of the chest, spine or abdomen performed from January 2006 to June 2014, on patients who also had upper gastrointestinal series (UGI) performed within 10 years of the MRI date: 1) retroperitoneal duodenum, 2) left upper quadrant duodenojejunal junction, 3) superior mesenteric artery to the left of the superior mesenteric vein, and 4) right lower quadrant cecum...
June 16, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28578475/intussusception-reduction-effect-of-air-vs-liquid-enema-on-radiation-dose
#5
Summer L Kaplan, Dennise Magill, Marc A Felice, J Christopher Edgar, Sudha A Anupindi, Xiaowei Zhu
BACKGROUND: Both air and radiopaque liquid contrast are used to reduce ileocolic intussusception under fluoroscopy. Some suggest air lowers radiation dose due to shorter procedure times. However, air enema likely lowers radiation dose regardless of fluoroscopy time due to less density over the automatic exposure control cells. OBJECTIVES: We test the hypothesis that air enema reduction of ileocolic intussusception results in lower radiation dose than liquid contrast enema independent of fluoroscopy time...
June 3, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28578474/differentiating-perforated-from-non-perforated-appendicitis-on-contrast-enhanced-magnetic-resonance-imaging
#6
Daniel G Rosenbaum, Gulce Askin, Debra M Beneck, Arzu Kovanlikaya
BACKGROUND: The role of magnetic resonance imaging (MRI) in pediatric appendicitis is increasing; MRI findings predictive of appendiceal perforation have not been specifically evaluated. OBJECTIVE: To assess the performance of MRI in differentiating perforated from non-perforated appendicitis. MATERIALS AND METHODS: A retrospective review of pediatric patients undergoing contrast-enhanced MRI and subsequent appendectomy was performed, with surgicopathological confirmation of perforation...
June 3, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28573315/pediatric-renal-transplant-biopsy-with-ultrasound-guidance-the-core-essentials
#7
REVIEW
Aris Oates, Saveen Ahuja, Marsha M Lee, Andrew S Phelps, John D Mackenzie, Jesse L Courtier
This review provides a comprehensive and practical approach to pediatric percutaneous renal transplant biopsies, highlighting techniques and strategies to optimize adequate sample yield and ensure patient safety. In children with end-stage renal disease, transplantation is the preferred choice of therapy, providing for overall lower long-term morbidity and mortality compared with dialysis. In the ongoing management of renal transplant patients, core tissue sampling via a percutaneous renal biopsy remains the gold standard when transplant dysfunction is suspected...
June 1, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28567656/nasoduodenal-tube-placement-are-two-views-necessary-to-confirm-position
#8
Anh-Vu Ngo, Stephen Done, Randolph Otto, Seth Friedman, A Luana Stanescu
BACKGROUND: Nasoduodenal tube (NDT) placement is typically performed at the bedside and two-view abdominal radiographs are usually used to confirm tube position. Anecdotally, in most instances the lateral view is unnecessary and utilizes more than twice the radiation than an anteroposterior (AP) view alone. OBJECTIVE: We hypothesize that NDT location can be determined using only the AP view, with the NDT position determined on two views utilized as the gold standard...
May 31, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28555322/assessment-of-airway-compression-on-chest-radiographs-in-children-with-pulmonary-tuberculosis
#9
Lisel Richter-Joubert, Savvas Andronikou, Lesley Workman, Heather J Zar
BACKGROUND: Because small, pliable paediatric airways are easily compressed by enlarged lymph nodes, detection of radiographic airway compression might be an objective criterion for diagnosing pulmonary tuberculosis. OBJECTIVE: To investigate the frequency and inter-observer agreement of airway compression on chest radiographs in children with pulmonary tuberculosis compared to those with a different lower respiratory tract infection. MATERIALS AND METHODS: Chest radiographs of children with suspected pulmonary tuberculosis were read by two readers according to a standardised format and a third reader when there was disagreement...
May 29, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28547137/age-dependent-arthrosonographic-reference-values-of-the-hip-joint-in-healthy-children-and-adolescents-a-cross-sectional-multicenter-ultrasound-study
#10
Ralf Felix Trauzeddel, Hartwig Lehmann, Daniel Windschall, Gerd Ganser, Rainer Berendes, Maria Haller, Manuela Krumrey-Langkammerer, Katharina Palm-Beden, Antje Nimtz-Talaska, Christine Nirschl, Phillip Schoof, Ralf Trauzeddel
BACKGROUND: Musculoskeletal US is a noninvasive imaging method for diagnosing and monitoring inflammatory rheumatic diseases. OBJECTIVES: To develop age- and gender-related arthrosonographic reference intervals for the hip joint of healthy children and adolescents. MATERIALS AND METHODS: In a cross-sectional US study, we examined both hip joints of 445 children and adolescents with an age range of 1 year to 18 years. We measured the distance between the bone surface and the outer margin of the joint capsule to define the bone-capsule distance, the joint capsule and cartilage thickness, and the capsule layer thickness...
May 25, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28534155/myocardial-delayed-enhancement-ct-initial-experience-in-children-and-young-adults
#11
Hyun Woo Goo
BACKGROUND: Clinical utility of myocardial delayed enhancement CT has not been reported in children and young adults. OBJECTIVE: To describe initial experience of myocardial delayed enhancement CT regarding image quality, radiation dose and identification of myocardial lesions in children and young adults. MATERIALS AND METHODS: Between August 2013 and November 2016, 29 consecutive children and young adults (median age 16 months) with suspected coronary artery or myocardial abnormality underwent arterial- and delayed-phase cardiac CT at our institution...
May 23, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28526896/signal-intensity-at-unenhanced-t1-weighted-magnetic-resonance-in-the-globus-pallidus-and-dentate-nucleus-after-serial-administrations-of-a-macrocyclic-gadolinium-based-contrast-agent-in-children
#12
Maria Camilla Rossi Espagnet, Bruno Bernardi, Luca Pasquini, Lorenzo Figà-Talamanca, Paolo Tomà, Antonio Napolitano
BACKGROUND: Few studies have been conducted on the relations between T1-weighted signal intensity changes in the pediatric brain following gadolinium-based contrast agent (GBCA) exposure. OBJECTIVE: The purpose of this study is to investigate the effect of multiple administrations of a macrocyclic GBCA on signal intensity in the globus pallidus and dentate nucleus of the pediatric brain on unenhanced T1-weighted MR images. MATERIALS AND METHODS: This retrospective study included 50 patients, mean age: 8 years (standard deviation: 4...
May 19, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28523345/endovenous-laser-ablation-therapy-in-children-applications-and-outcomes
#13
Premal A Patel, Alex M Barnacle, Sam Stuart, Joao G Amaral, Philip R John
BACKGROUND: Endovenous laser ablation is well recognized as the first-line treatment for superficial venous reflux with varicose veins in adults. It is not widely reported and is not an established practice in pediatric patients. OBJECTIVE: To illustrate a variety of pediatric venous conditions in which endovenous laser ablation can be utilized and to demonstrate its feasibility and safety in children. MATERIALS AND METHODS: We conducted a retrospective review of endovenous laser ablation procedures performed between January 2007 and July 2014 at two large pediatric institutions...
May 18, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28516221/small-bowel-obstruction-due-to-ingestion-of-rubber-balls
#14
Alaa N Alsharief, Christopher Blackmore, Pierre Schmit
We report a case of a 10-month-old girl who presented with a 10-day history of emesis that became bilious on the last day. The initial evaluation suggested small bowel obstruction. An upper gastrointestinal study confirmed the normal location of the duodenojejunal junction with normal rotation and no evidence of midgut volvulus. Ultrasound (US) evaluation demonstrated two intraluminal lesions that do not follow the typical features of solid or cystic lesions. Two rubber balls were found at surgery to be responsible for the small bowel obstruction...
May 17, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28512714/comparison-of-the-diagnostic-accuracy-of-pet-mri-to-pet-ct-acquired-fdg-brain-exams-for-seizure-focus-detection-a-prospective-study
#15
Michael J Paldino, Erica Yang, Jeremy Y Jones, Nadia Mahmood, Andrew Sher, Wei Zhang, Shireen Hayatghaibi, Ramkumar Krishnamurthy, Victor Seghers
BACKGROUND: There is great interest in positron emission tomography (PET)/magnetic resonance (MR) as a clinical tool due to its capacity to provide diverse diagnostic information in a single exam. OBJECTIVE: The goal of this exam is to compare the diagnostic accuracy of PET/MR-acquired [F-18]2-fluoro-2-deoxyglucose (FDG) brain exams to that of PET/CT with respect to identifying seizure foci in children with localization-related epilepsy. MATERIALS AND METHODS: Institutional Review Board approval and informed consent were obtained for this Health Insurance Portability and Accountability Act-compliant, prospective study...
May 16, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28497263/radiologic-head-ct-interpretation-errors-in-pediatric-abusive-and-non-abusive-head-trauma-patients
#16
Stephen F Kralik, Whitney Finke, Isaac C Wu, Roberta A Hibbard, Ralph A Hicks, Chang Y Ho
BACKGROUND: Pediatric head trauma, including abusive head trauma, is a significant cause of morbidity and mortality. OBJECTIVE: The purpose of this research was to identify and evaluate radiologic interpretation errors of head CTs performed on abusive and non-abusive pediatric head trauma patients from a community setting referred for a secondary interpretation at a tertiary pediatric hospital. MATERIALS AND METHODS: A retrospective search identified 184 patients <5 years of age with head CT for known or potential head trauma who had a primary interpretation performed at a referring community hospital by a board-certified radiologist...
May 11, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28493011/mri-of-thoracic-outlet-syndrome-in-children
#17
REVIEW
Govind B Chavhan, Vaishnavi Batmanabane, Prakash Muthusami, Alexander J Towbin, Gregory H Borschel
Thoracic outlet syndrome is caused by compression of the neurovascular bundle as it passes from the upper thorax to the axilla. The neurovascular bundle can be compressed by bony structures such as the first rib, cervical ribs or bone tubercles, or from soft-tissue abnormalities like a fibrous band, muscle hypertrophy or space-occupying lesion. Thoracic outlet syndrome commonly affects young adults but can be seen in the pediatric age group, especially in older children. Diagnosis is based on a holistic approach encompassing clinical features, physical examination findings including those triggered by various maneuvers, electromyography, nerve conduction studies and imaging...
May 10, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28493010/multiple-long-bone-cysts-revealed-by-mri-in-trichorhinophalangeal-syndrome-type-ii-predisposing-to-pathological-fractures
#18
Praveen Konala, Nigel Kiely, Charlotte Noakes, Edward Blair, Victor N Cassar-Pullicino
Trichorhinophalangeal syndrome type II is a rare genetic disorder with the few published case reports mainly reporting the radiographic skeletal manifestations. There are no published imaging reports of long bone cysts involving multiple bones in this condition. We report a unique case of bone cysts involving multiple long bones detected with MRI in a patient with trichorhinophalangeal syndrome type II complicated by a subsequent pathological fracture. It is possible that the bone cysts are a previously undescribed feature of this syndrome; however, the evidence is insufficient to establish a definite association...
May 10, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28488002/experience-with-the-use-of-propofol-for-radiologic-imaging-in-infants-younger-than-6-months-of-age
#19
Elan Jenkins, Kiran B Hebbar, Katie K Karaga, Daniel A Hirsh, James D Fortenberry, Courtney E McCracken, Stephen F Simoneaux, Michael D Mallory, Pradip P Kamat
BACKGROUND: There is an increased risk associated with procedural sedation of infants younger than 6 months of age. The use of propofol for radiologic imaging of this age group is not well studied. OBJECTIVE: We hypothesize that adverse events are higher in the infant population receiving propofol for radiologic imaging. MATERIALS AND METHODS: A retrospective chart review was undertaken of 304 infants younger than 6 months old who received propofol for procedural sedation from October 2012 to February 2015...
May 9, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28478502/frequency-and-pathogenesis-of-central-liver-nodules-in-alagille-syndrome-patients-reply-to-libbrecht-and-cassiman
#20
LETTER
Jordan B Rapp, Richard D Bellah, Carolina Maya, Bruce R Pawel, Sudha A Anupindi
No abstract text is available yet for this article.
May 6, 2017: Pediatric Radiology
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