1
|
Vande Walle C, Keymeulen A, Oostra A, Schiettecatte E, Dhooge I, Smets K, Herregods N. Apparent diffusion coefficient values of the white matter in magnetic resonance imaging of the neonatal brain may help predict outcome in congenital cytomegalovirus infection. Pediatr Radiol 2024; 54:337-346. [PMID: 38182852 PMCID: PMC10830666 DOI: 10.1007/s00247-023-05838-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND White matter change is a well-known abnormality in congenital cytomegalovirus (cCMV) infection, but grading remains challenging and clinical relevance unclear. OBJECTIVE To investigate if quantitative measurement of white matter apparent diffusion coefficient (ADC) values in magnetic resonance imaging (MRI) of the neonatal brain can predict outcome in cCMV. MATERIALS AND METHODS A retrospective, single-center observational study, including patients with cCMV who had a neonatal brain MRI with diffusion-weighted imaging, was performed between 2007 and 2020. Regions of interest were systematically placed in the white matter on the ADC maps. Two pediatric radiologists independently scored additional brain abnormalities. Outcome measures were neonatal hearing and cognitive and motor development. Statistical analysis included simple and penalized elastic net regression. RESULTS Neonatal brain MRI was evaluated in 255 patients (median age 21 days, 25-75 percentiles: 14-28 days, 121 male). Gyral abnormalities were noted in nine patients (3.5%), ventriculomegaly in 24 (9.4%), and subependymal cysts in 58 (22.7%). General white matter ADC was significantly higher in patients with neonatal hearing loss and cognitive and motor impairment (P< 0.05). For neonatal hearing loss, simple logistic regression using only general white matter was the best prediction model, with a receiver operating characteristic area under the curve (AUC)=0.76. For cognitive impairment, interacting elastic net regression, including other brain abnormalities and frontoparietal white matter ADC, performed best, with AUC=0.89. For motor impairment, interacting elastic net regression, including other brain abnormalities and deep anterior frontal white matter performed best, with AUC=0.73. CONCLUSION Neonatal white matter ADC was significantly higher in patients with clinical impairments. Quantitative ADC measurement may be a useful tool for predicting clinical outcome in cCMV.
Collapse
Affiliation(s)
- Caroline Vande Walle
- Department of Radiology and Nuclear Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium.
| | | | - Anna Oostra
- Center for Developmental Disorders, Ghent, Belgium
| | - Eva Schiettecatte
- Department of Radiology and Nuclear Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - Ingeborg Dhooge
- Department of Otorhinolaryngology, Ghent University Hospital, Ghent, Belgium
| | - Koenraad Smets
- Department of Neonatology, Ghent University Hospital, Ghent, Belgium
| | - Nele Herregods
- Department of Radiology and Nuclear Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium
| |
Collapse
|
2
|
Vande Walle C, Keymeulen A, Oostra A, Schiettecatte E, Dhooge IJ, Smets K, Herregods N. Implications of isolated white matter abnormalities on neonatal MRI in congenital CMV infection: a prospective single-centre study. BMJ Paediatr Open 2023; 7:e002097. [PMID: 37844971 PMCID: PMC10582994 DOI: 10.1136/bmjpo-2023-002097] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/19/2023] [Indexed: 10/18/2023] Open
Abstract
OBJECTIVE Investigating the clinical implications of isolated white matter abnormalities on neonatal brain MRI in congenital cytomegalovirus (CMV). DESIGN Prospective, observational. PATIENTS/INTERVENTIONS Two paediatric radiologists, blinded to clinical data, independently scored the white matter in 286 newborns with congenital CMV. After assessing interobserver variability, mean score was used to categorise white matter (normal, doubtful or abnormal). Patients with other brain abnormalities were excluded. MAIN OUTCOME MEASURES Hearing and neuromotor evaluation. RESULTS Cohen's weighted kappa was 0.79 (95% CI 0.73 to 0.84). White matter was normal in 121 patients, doubtful in 62, abnormal in 28. Median clinical follow-up was 12.0 months (IQR 12.0-27.7 months). Neonatal hearing loss occurred in 4/27 patients (14.8%) with abnormal, 1/118 patients (0.8%) with normal and 1/62 patients (1.6%) with doubtful white matter (p<0.01). Impaired cognitive development was seen in 3/27 patients (11.1%) with abnormal, 3/114 patients (2.6%) with normal and 1/59 patients (1.7%) with doubtful white matter (p=0.104). Alberta Infant Motor Scale (AIMS) was below P75 in 21/26 patients (80.8%) with abnormal, 73/114 patients (64.0%) with normal and 36/57 patients (63.2%) with doubtful white matter (p=0.231). In a subgroup of patients with minimal clinical follow-up of 18 months, AIMS score was below P75 in 10/13 patients (76.9%) with abnormal, 13/34 patients (38.2%) with normal and 7/20 patients (35.0%) with doubtful white matter (p<0.05). CONCLUSIONS Abnormal white matter was associated with neonatal hearing loss and mild, lower motor scores. A tendency towards impaired cognitive development was seen. Patients with doubtful white matter did not show worse clinical outcome.
Collapse
Affiliation(s)
- Caroline Vande Walle
- Department of Radiology and Nuclear Medicine, Universitair Ziekenhuis Gent, Gent, Belgium
| | | | - Ann Oostra
- Centre for Developmental Disorders, Universitair Ziekenhuis Gent, Gent, Belgium
| | - Eva Schiettecatte
- Department of Radiology and Nuclear Medicine, Universitair Ziekenhuis Gent, Gent, Belgium
| | | | - Koenraad Smets
- Department of Neonatology, Universitair Ziekenhuis Gent, Gent, Belgium
| | - Nele Herregods
- Department of Radiology and Nuclear Medicine, Universitair Ziekenhuis Gent, Gent, Belgium
| |
Collapse
|
3
|
Chung PK, Schornagel F, Oudesluys-Murphy AM, de Vries LS, Soede W, van Zwet E, Vossen A. Targeted screening for congenital cytomegalovirus infection: clinical, audiological and neuroimaging findings. Arch Dis Child Fetal Neonatal Ed 2022; 108:302-308. [PMID: 36549893 PMCID: PMC10176415 DOI: 10.1136/archdischild-2022-324699] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 11/27/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To evaluate clinical, audiological and neuroimaging findings in a cohort of infants diagnosed with congenital cytomegalovirus (cCMV) infection after failure at newborn hearing screening. METHODS A prospective observational study in the Netherlands, using the existing newborn hearing screening infrastructure for well babies. Between July 2012 and November 2016, cytomegalovirus (CMV) PCR testing of neonatally obtained dried blood spots (DBS) was offered to all infants who failed newborn hearing screening. Clinical, neuroimaging and audiological data were collected. RESULTS DBS of 1374 infants were successfully tested and 59 were positive for CMV (4.3%). Data of 54 infants were retrieved. Three were small for gestational age and six had microcephaly. Forty-eight (89%) had sensorineural hearing loss (SNHL), of whom half had unilateral SNHL. In both unilaterally and bilaterally affected children, the majority of the impaired ears had severe or profound hearing loss. Neuroimaging abnormalities were found in 40 of 48 (83%) children who had evaluable cranial ultrasound and/or cerebral MRI. The abnormalities were mild in 34, moderate in 3 and severe in 3 infants. The degree of SNHL and the severity of neuroimaging abnormalities were found to be correlated (p=0.002). CONCLUSIONS The yield of targeted cCMV screening following newborn hearing screening failure was eight times higher than the estimated national birth prevalence of cCMV. The majority of this cohort of infants with clinically unsuspected cCMV disease had confirmed SNHL, neuroimaging abnormalities and lower than average birth weights and head circumferences. Newborns who fail newborn hearing screening should be tested for CMV to ensure appropriate clinical, neurodevelopmental and audiological follow-up.
Collapse
Affiliation(s)
- Pui Khi Chung
- Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Fleurtje Schornagel
- Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Linda S de Vries
- Willem-Alexander Children's Hospital, Leiden University Medical Center, Leiden, The Netherlands
| | - Wim Soede
- Center for Audiology at the Department of Otorhinolaryngology, Leiden University Medical Center, Leiden, The Netherlands
| | - Erik van Zwet
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Ann Vossen
- Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| |
Collapse
|
4
|
Brain MRI findings in newborns with congenital cytomegalovirus infection: results from a large cohort study. Eur Radiol 2021; 31:8001-8010. [PMID: 33787973 DOI: 10.1007/s00330-021-07776-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/08/2021] [Accepted: 02/11/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To investigate the spectrum and frequency of abnormalities on brain MRI in a large cohort of live newborns with congenital CMV (cCMV) infection. METHODS Institutional review board approval and informed consent for neonatal MRI and data collection were obtained. Between January 2010 and January 2018, brain MRI was performed in 196 live newborns diagnosed with cCMV. Images were independently reviewed by 2 pediatric radiologists, blinded to clinical data. RESULTS cCMV infection was clinically symptomatic in 26/191 newborns (13.6%). Brain MRI showed abnormalities in 76/196 patients (38.8%). MRI was abnormal in 20/26 clinically symptomatic patients (76.9%): 76.9% showed white matter lesions, 61.5% subependymal cysts, 46.2% ventriculomegaly, 26.9% ventricular adhesions, 26.9% gyral abnormalities, 24.0% calcifications, 15.4% cerebellar anomalies. MRI was abnormal in 55/165 (33.3%) clinically asymptomatic patients: 30.9% had white matter lesions, 15.8% subependymal cysts, 4.2% ventriculomegaly, 2.4% ventricular adhesions, 1.2% gyral abnormalities, 0.6% calcifications, none had cerebellar anomalies. Concomitant brain lesions were seen in all patients with gyral abnormalities, cerebellar anomalies, and calcifications and nearly all patients with subependymal cysts and ventriculomegaly. In all but 4 patients with other detected brain lesions, white matter abnormalities were simultaneously present. In 33/74 patients (45.2%), white matter lesions were seen as a sole abnormality. CONCLUSION White matter lesions were the most common detected abnormality on brain MRI in newborns with congenital CMV. Since brain abnormalities were seen in more than 30% of clinically asymptomatic and 75% of clinically symptomatic newborns, MRI should be advised in all newborns diagnosed with cCMV. KEY POINTS • Neonatal brain MRI showed abnormalities in more than 30% of clinically asymptomatic and 75% of symptomatic newborns with congenital cytomegalovirus infection. • White matter lesions were by far the most common detected abnormality, followed by subependymal cysts and ventricular dilatation. • Lesions in cCMV were often multiple, with many patients showing concomitant lesions.
Collapse
|
5
|
Alwan SN, Shamran HA, Ghaib AH, Kadhim HS, Al-Mayah QS, AL-Saffar AJ, Bayati AH, Arif HS, Fu J, Wickes BL. Genotyping of Cytomegalovirus from Symptomatic Infected Neonates in Iraq. Am J Trop Med Hyg 2019; 100:957-963. [PMID: 30810104 PMCID: PMC6447132 DOI: 10.4269/ajtmh.18-0152] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 11/12/2018] [Indexed: 12/11/2022] Open
Abstract
Among all other viruses, human cytomegalovirus (HCMV) is the most frequent cause of congenital infection worldwide. Strain variation in HCMV may predict severity or outcome of congenital HCMV disease. Previous studies have associated a particular genotype with specific sequelae or more severe illness, but the results were contradictory. There are no previous studies addressing the genotype of HCMV in Iraq. Therefore, the present study is aimed at molecular detection and genotyping of HCMV isolated from symptomatic congenitally/perinatally infected neonates. This prospective study comprised 24 serum samples from symptomatic neonates with congenital/perinatal infection. Viral DNA was extracted from these serum samples; nested polymerase chain reaction was used to amplify the HCMV gB (UL55) gene. Polymerase chain reaction products of the second round of amplification were subjected to direct Sanger sequencing. Bioedit and MEGA5 software (EMBL-EBI, Hinxton, Cambridgeshire, UK) were used for alignment and construction of a phylogenetic tree. Human cytomegalovirus DNA was detected in 23 of 24 samples (95.8%). According to the phylogenetic analysis, three genotypes of the virus were identified; gB1, gB2, and gB3 genotypes. However, the gB4 genotype was not detected. Human cytomegalovirus gB3 was the most frequent genotype: 14 of 24 (58.33%) among symptomatic infected infants, followed by gB1 (6/24; 25%) and gB2 (4/24; 16.67%). A mixed HCMV infection with gB3/gB1 was detected in only one case. Human cytomegalovirus gB3 was the most predominant genotype among symptomatic congenitally/perinatally HCMV-infected neonates. No association was found between B3 genotype and specific clinical presentation. Jaundice was the most common clinical feature among symptomatically infected neonates, followed by hepatosplenomegaly.
Collapse
Affiliation(s)
- Sevan N. Alwan
- Department of Biochemistry and Structural Biology, UT Health at San Antonio, San Antonio, Texas
| | - Haidar A. Shamran
- Medical Research Unit, College of Medicine, University of AL-Nahrain, Baghdad, Iraq
| | - Avan H. Ghaib
- Microbiology and Immunology Department, College of Medicine, University of Sulaimani, Sulaymaniyah, Iraq
| | - Haider S. Kadhim
- Microbiology Department, College of Medicine, Al-Nahrain University, Baghdad, Iraq
| | - Qasim S. Al-Mayah
- Medical Research Unit, College of Medicine, University of AL-Nahrain, Baghdad, Iraq
| | - Atheer J. AL-Saffar
- Community and Family Medicine Department, College of Medicine, Al-Nahrain University, Baghdad, Iraq
| | - Ali H. Bayati
- Community Health Department, Technical College of Health, Sulaimani Polytechnic University, Sulaymaniyah, Kurdistan Region, Iraq
| | - Hala S. Arif
- Pediatric Department, College of Medicine, Al-Nahrain University, Baghdad, Iraq
| | - Jianmin Fu
- Department of Microbiology, Immunology, and Molecular Genetics, UT Heath at San Antonio, San Antonio, Texas
| | - Brian L. Wickes
- Department of Microbiology, Immunology, and Molecular Genetics, UT Heath at San Antonio, San Antonio, Texas
| |
Collapse
|
6
|
10-year follow-up of congenital cytomegalovirus infection complicated with severe neurological findings in infancy: a case report. BMC Pediatr 2018; 18:369. [PMID: 30470211 PMCID: PMC6260854 DOI: 10.1186/s12887-018-1348-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 11/16/2018] [Indexed: 12/01/2022] Open
Abstract
Background Congenital cytomegalovirus (cCMV) infection leads to sensorineural hearing loss (SNHL) and neurodevelopmental delays. However, the long-term outcomes of cCMV infection with severe neurological manifestations in infancy remain unclear. Case presentation The patient was a one-month-old girl visited owing to abnormalities in neonatal hearing screening. Central nervous system involvement including intracranial calcification and extensive white matter abnormalities was identified. Right SNHL (50 dB) was detected by auditory brain response (ABR) testing. The cause of her hearing loss was determined to be cCMV infection by polymerase chain reaction (PCR) using a dried blood spot. At 1.5 months of age, the patient was treated with intravenous ganciclovir (GCV) for 5 weeks followed by oral valganciclovir (VGCV) for an additional 6 weeks. Cytomegalovirus (CMV) loads in her urine continued to be detected until she was 10 years old. Fortunately, during this time, her right hearing loss did not deteriorate, and her left hearing remained normal. Furthermore, the extensive abnormal areas of white matter observed at 1 month of age mostly disappeared by the time the patient was 9 years old. Her neurodevelopmental score was normal, and motor milestones were not delayed as of 10 years of age. Conclusions Here, we report the 10-year follow-up of a patient with cCMV who showed normal neurodevelopment, no progression of hearing loss, and ameliorating magnetic resonance imaging (MRI) findings, despite having various complications and severe neurological findings during infancy. Electronic supplementary material The online version of this article (10.1186/s12887-018-1348-8) contains supplementary material, which is available to authorized users.
Collapse
|
7
|
Yamaguchi A, Oh-ishi T, Arai T, Sakata H, Adachi N, Asanuma S, Oguma E, Kimoto H, Matsumoto J, Fujita H, Uesato T, Fujita J, Shirato K, Ohno H, Kizaki T. Screening for seemingly healthy newborns with congenital cytomegalovirus infection by quantitative real-time polymerase chain reaction using newborn urine: an observational study. BMJ Open 2017; 7:e013810. [PMID: 28110288 PMCID: PMC5253530 DOI: 10.1136/bmjopen-2016-013810] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Approximately 8-10% of newborns with asymptomatic congenital cytomegalovirus (cCMV) infection develop sensorineural hearing loss (SNHL). However, the relationship between CMV load, SNHL and central nervous system (CNS) damage in cCMV infection remains unclear. This study aimed to examine the relationship between urinary CMV load, SNHL and CNS damage in newborns with cCMV infection. STUDY DESIGN The study included 23 368 newborns from two maternity hospitals in Saitama Prefecture, Japan. Urine screening for cCMV infection (quantitative real-time PCR) and newborn hearing screening (automated auditory brainstem response (AABR) testing) were conducted within 5 days of birth to examine the incidence of cCMV infection and SNHL, respectively. CNS damage was assessed by MRI of cCMV-infected newborns. RESULTS The incidence of cCMV infection was 60/23 368 (0.257%; 95% CI 0.192% to 0.322%). The geometric mean urinary CMV DNA copy number in newborns with cCMV was 1.79×106 copies/mL (95% CI 7.97×105 to 4.02×106). AABR testing revealed abnormalities in 171 of the 22 229 (0.769%) newborns whose parents approved hearing screening. Of these 171 newborns, 22 had SNHL (12.9%), and 5 of these 22 were infected with cCMV (22.7%). Newborns with both cCMV and SNHL had a higher urinary CMV DNA copy number than newborns with cCMV without SNHL (p=0.036). MRI revealed CNS damage, including white matter abnormalities, in 83.0% of newborns with cCMV. Moreover, newborns with CNS damage had a significantly greater urinary CMV load than newborns without CNS damage (p=0.013). CONCLUSIONS We determined the incidence of cCMV infection and urinary CMV DNA copy number in seemingly healthy newborns from two hospitals in Saitama Prefecture. SNHL and CNS damage were associated with urinary CMV DNA copy number. Quantification of urinary CMV load may effectively predict the incidence of late-onset SNHL and neurodevelopmental disorders.
Collapse
Affiliation(s)
- Akira Yamaguchi
- Laboratory of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
- Department of Radiological Technology, Saitama Children's Medical Center, Saitama, Japan
| | - Tsutomu Oh-ishi
- Division of Infectious Disease, Saitama Children's Medical Center, Saitama, Japan
| | - Takashi Arai
- Laboratory of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
- Department of Radiological Technology, Saitama Children's Medical Center, Saitama, Japan
| | - Hideaki Sakata
- Division of Otorhinolaryngology, Kawagoe Otology Institute, Saitama, Japan
- Mejiro University Audiology Clinic, Saitama, Japan
| | - Nodoka Adachi
- Division of Otolaryngology, Saitama Children's Medical Center, Saitama, Japan
| | - Satoshi Asanuma
- Division of Otolaryngology, Saitama Children's Medical Center, Saitama, Japan
| | - Eiji Oguma
- Division of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | | | - Jiro Matsumoto
- Division of Obstetrics and Gynecology, Sannoh Clinic, Saitama, Japan
| | - Hidetoshi Fujita
- Division of Obstetrics and Gynecology, Aiwa Hospital, Saitama, Japan
| | - Tadashi Uesato
- Division of Obstetrics and Gynecology, Aiwa Hospital, Saitama, Japan
| | - Jutaro Fujita
- Division of Obstetrics and Gynecology, Aiwa Hospital, Saitama, Japan
| | - Ken Shirato
- Department of Molecular Predictive Medicine and Sport Science, School of Medicine, Kyorin University, Tokyo, Japan
| | - Hideki Ohno
- Department of Molecular Predictive Medicine and Sport Science, School of Medicine, Kyorin University, Tokyo, Japan
| | - Takako Kizaki
- Department of Molecular Predictive Medicine and Sport Science, School of Medicine, Kyorin University, Tokyo, Japan
| |
Collapse
|
8
|
Averill LW, Kandula VVR, Akyol Y, Epelman M. Fetal Brain Magnetic Resonance Imaging Findings In Congenital Cytomegalovirus Infection With Postnatal Imaging Correlation. Semin Ultrasound CT MR 2015; 36:476-86. [PMID: 26614131 DOI: 10.1053/j.sult.2015.04.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Fetal brain magnetic resonance imaging (MRI) is a powerful tool in the diagnosis of symptomatic congenital cytomegalovirus infection, requiring a detailed search for specific features. A combination of anterior temporal lobe abnormalities, white matter lesions, and polymicrogyria is especially predictive. Fetal MRI may provide a unique opportunity to detect anterior temporal cysts and occipital horn septations, as dilation of these areas may decrease later in development. Cortical migration abnormalities, white matter abnormalities, cerebellar dysplasia, and periventricular calcifications are often better depicted on postnatal imaging but can also be detected on fetal MRI. We present the prenatal brain MRI findings seen in congenital cytomegalovirus infection and provide postnatal imaging correlation, highlighting the evolution of findings at different times in prenatal and postnatal developments.
Collapse
Affiliation(s)
- Lauren W Averill
- Department of Medical Imaging, Nemours/A.I. duPont Hospital for Children, Wilmington, DE.
| | - Vinay V R Kandula
- Department of Medical Imaging, Nemours/A.I. duPont Hospital for Children, Wilmington, DE
| | - Yakup Akyol
- Department of Medical Imaging, Nemours/A.I. duPont Hospital for Children, Wilmington, DE
| | - Monica Epelman
- Department of Radiology (Medical Imaging), Nemours Children׳s Hospital, Orlando, FL
| |
Collapse
|