A5033959052- Radiation Dose and Imaging
- Ultrasound in Clinical Applications
- Neonatal and fetal brain pathology
- Advanced X-ray and CT Imaging
- Neonatal Respiratory Health Research
- Pleural and Pulmonary Diseases
- Congenital Diaphragmatic Hernia Studies
- Traumatic Brain Injury and Neurovascular Disturbances
- Medical Imaging Techniques and Applications
- Radiology practices and education
- Intestinal Malrotation and Obstruction Disorders
- Infant Development and Preterm Care
- Congenital Heart Disease Studies
- Pediatric Hepatobiliary Diseases and Treatments
- Pneumonia and Respiratory Infections
- Gastrointestinal disorders and treatments
- Fetal and Pediatric Neurological Disorders
- Appendicitis Diagnosis and Management
- Urological Disorders and Treatments
- Pediatric Urology and Nephrology Studies
- Vascular Anomalies and Treatments
- Gastroesophageal reflux and treatments
- Omental and Epiploic Conditions
- Medical Imaging and Pathology Studies
- Biliary and Gastrointestinal Fistulas
Massachusetts General Hospital
2013-2023
Harvard University
2010-2023
Brigham and Women's Hospital
2023
MaineGeneral Medical Center
2018
The University of Adelaide
2018
American College of Radiology
2017
Cincinnati Children's Hospital Medical Center
2017
Boston Children's Hospital
2017
Creative Research Enterprises (United States)
2016
Harvard University Press
2014
To assess compliance and resultant radiation dose reduction with new pediatric chest abdominal computed tomographic (CT) protocols based on patient weight, clinical indication, number of prior CT studies, automatic exposure control.The study was institutional review board approved HIPAA compliant. Informed consent waived. The protocols, which were organized into six color zones indications examinations in a given patient, retrospectively assessed. Scanning parameters adjusted the basis...
Studies of the relationship between ultrasound images from preterm newborns and developmental delay most often are based on small samples defined by birth weight exclude infants not testable with standardized assessments.We evaluated associations ultrasound-defined lesions brain delays at 24 months' corrected age in 1017 children born before 28th postmenstrual week. Brain scans were read for concordance 4 lesions: intraventricular hemorrhage, moderate/severe ventriculomegaly, white matter...
To assess image quality and radiation dose reduction with hybrid iterative reconstruction of pediatric chest abdominal computed tomographic (CT) data compared conventional filtered back projection (FBP).A total 234 patients (median age, 12 years; age range, 6 weeks to 18 years) underwent CT in this institutional review board-approved HIPAA-compliant retrospective study. was performed a adaptive statistical (ASIR)-enabled 64-detector row scanner. Scanning protocols were adjusted for clinical...
To develop diagnostic reference ranges (DRRs) and a method for an individual practice to calculate site-specific doses computed tomographic (CT) scans of the abdomen or pelvis in children on basis body width (BW).This HIPAA-compliant multicenter retrospective study was approved by institutional review boards participating institutions; informed consent waived. In 939 pediatric patients, CT were reviewed 499 (53%) male 440 (47%) female patients (mean age, 10 years). Doses from 954 obtained...
Our prospective cohort study of extremely low gestational age newborns evaluated the association neonatal head ultrasound abnormalities with cerebral palsy at 2 years. Cranial ultrasounds in 1053 infants were read respect to intraventricular hemorrhage, ventriculomegaly, and echolucency, by multiple sonologists. Standardized neurological examinations classified palsy, functional impairment was assessed. Forty-four percent ventriculomegaly 52% echolucency developed palsy. Compared no...
Purpose To determine diagnostic reference ranges on the basis of size a pediatric patient's chest and to develop method estimate computed tomographic (CT) scanner-specific mean size-specific dose estimates (SSDEs) as function patient radiation output each CT scanner at site. Materials Methods The institutional review boards center approved this retrospective, HIPAA-compliant, multicenter study; informed consent was waived. indexes (SSDE, volume index, length product) 518 patients (mean age,...
Ultrasonography (US), computed tomography (CT), and magnetic resonance (MR) imaging have replaced intravenous urography angiography in evaluation of children with suspected disease the adrenal glands. Although spatial resolution MR is still somewhat inferior to that CT, it allows tissue characterization better tumor extension owing its multiplanar capability. Initial diagnosis an mass a child made US, which also used document regression uncomplicated neonatal hemorrhage. for when surgery be...
A 9-year-old boy with autism was admitted to the hospital because of pain in hip, rash, and swelling gingiva. Three months earlier, his right hip developed, he eventually refused walk. Physical examination disclosed no joint swelling, radiographs pelvis spine were normal. Indomethacin prescribed; improved, but a petechial rash on legs gingival developed.
In 30 young children suspected of gastroesophageal reflux (GER), the G-E junction was examined with ultrasonography directly after a feeding while these were on overnight extended esophageal pH monitoring (EEpHM) (32 simultaneous ultrasound/EEpHM studies). The two tests showed 81% to 84% agreement in detection presence or absence GER, depending whether whole period EEpHM only part it covering ultrasound observation used as standard. discrepancies between explained by much longer compared and...
Simplifying Size-Specific Radiation Dose Estimates in Pediatric CTRanish Deedar Ali Khawaja1, Sarabjeet Singh1, Beth Vettiyil1, Ruth Lim2, Michael Gee1, Sjirk Westra2 and Mannudeep K. Kalra1Audio Available | Share
The purpose of our study was to determine the value three-dimensional reconstructed helical CT in assessment pulmonary arteries infants and children with complex congenital heart disease.Twenty patients were examined contrast-enhanced CT. Three-dimensional reconstructions performed multiplanar reformations, maximum intensity projection, shaded-surface display. Correlation made 19 echocardiograms 14 cineangiocardiograms. All imaging studies reviewed independently for following parameters:...
Summary Ultrasound is a new test proven to be sensitive in the demonstration of gastroesophageal reflux (GER). Following seen with ultrasound various symptoms can observed physiological circumstances, and thereby causal relationship between these proven. We performed study 220 children suspected GER determine incidence sonographically demonstrated “symptomatic reflux” different clinical groups: (1) vomiting only, (2) respiratory symptoms, (3) attack-like (4) pain irritability. Overall, was...