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Sheibani A, Hashemi N, Beizaei B, Tavakkolizadeh N, Shoja A, Karimabadi N, Mirakhorli H, Hasanabadi P, Payandeh A, Hassannejad E. A narrative review of magnetic resonance imaging findings in pediatric idiopathic intracranial hypertension. Health Sci Rep 2024; 7:e70111. [PMID: 39381534 PMCID: PMC11458882 DOI: 10.1002/hsr2.70111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 08/06/2024] [Accepted: 09/11/2024] [Indexed: 10/10/2024] Open
Abstract
Background and Aims Idiopathic intracranial hypertension (IIH) is a rare neurological disorder in the pediatric population which is defined as an increase in intracranial pressure (ICP) without the presence of brain parenchymal lesions, hydrocephalus, or central nervous system infection. In this study, we have determined the magnetic resonance imaging (MRI) findings in IIH patients. Methods A comprehensive literature search was conducted using the electronic databases including Web of Sciences, Scopus, and Pubmed to identify suitable and relevant articles using keyword search methods. The search included keywords such as "idiopathic intracranial hypertension," "pseudotumor cerebri," "MRI," and "pediatrics." The search was limited to the available publications up to January 2024. Results MRI plays a crucial role in diagnosing IIH by excluding secondary causes and revealing neuroimaging findings associated with elevated ICP. Despite fewer studies in children compared to adults, MRI serves as a cornerstone in identifying traditional neuroradiological markers such as empty sella turcica, posterior globe flattening, optic nerve tortuosity, optic nerve sheath distension, and transverse venous sinus stenosis. Additional subtle markers include increased Meckel's cave length, cerebellar tonsillar herniation, and slit-like ventricles, although these are less reliable. Diffusion-weighted imaging does not typically show cerebral ADC value changes indicative of cerebral edema in pediatric IIH. Conclusion MRI findings provide valuable non-invasive diagnostic indicators that facilitate early detection, clinical management, and potential surgical intervention in pediatric IIH. The reliability of these MRI markers underscores their importance in clinical practice.
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Affiliation(s)
- Abdolreza Sheibani
- Department of RadiologyGolestan Hospital, Ahvaz Jundishapur University of Medical SciencesAhvazIran
| | - Narges Hashemi
- Department of PediatricsSchool of Medicine, Mashhad University of Medical SciencesMashhadIran
| | - Behnam Beizaei
- Department of RadiologyFaculty of Medicine, Mashhad University of Medical SciencesMashhadIran
| | - Nahid Tavakkolizadeh
- Department of RadiologyFaculty of Medicine, Mashhad University of Medical SciencesMashhadIran
| | - Ahmad Shoja
- Department of RadiologySchool of Medicine, Birjand University of Medical SciencesBirjandIran
| | - Neda Karimabadi
- Department of RadiologyFaculty of Medicine, Mashhad University of Medical SciencesMashhadIran
| | | | - Parsa Hasanabadi
- Student Research Committee, KurdistanUniversity of Medical SciencesSanandajIran
- Student Committee of Medical Education Development, Education Development CenterKurdistan University of Medical SciencesSanandajIran
- Medicine FacultyKurdistan University of Medical SciencesSanandajIran
| | - Asma Payandeh
- Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Ehsan Hassannejad
- Department of RadiologySchool of Medicine, Birjand University of Medical SciencesBirjandIran
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Shoaib AB, Tabacaru CR. Lactic Acidosis in a Neonate with Ventriculomegaly and Hypoplasia of the Corpus Callosum. Neoreviews 2024; 25:e107-e109. [PMID: 38296788 DOI: 10.1542/neo.25-2-e107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Affiliation(s)
- Abdullah Bin Shoaib
- Department of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Christa Rose Tabacaru
- Department of Neonatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, University of Cincinnati, Cincinnati, OH
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Optic Nerve Sheath Diameter Ultrasound: A Non-Invasive Approach to Evaluate Increased Intracranial Pressure in Critically Ill Pediatric Patients. Diagnostics (Basel) 2022; 12:diagnostics12030767. [PMID: 35328319 PMCID: PMC8946972 DOI: 10.3390/diagnostics12030767] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/15/2022] [Accepted: 03/15/2022] [Indexed: 01/16/2023] Open
Abstract
Early diagnosis of increased intracranial pressure (ICP) is crucial for prompt diagnosis and treatment of intracranial hypertension in critically ill pediatric patients, preventing secondary brain damage and mortality. Although the placement of an external ventricular drain coupled to an external fluid-filled transducer remains the gold standard for continuous ICP monitoring, other non-invasive approaches are constantly being improved and can provide reliable estimates. The use of point-of-care ultrasound (POCUS) for the assessment of ICP has recently become widespread in pediatric emergency and critical care settings, representing a valuable extension of the physical examination. The aim of this manuscript is to review and discuss the basic principles of ultra-sound measurement of the optic nerve sheath diameter (ONSD) and summarize current evidence on its diagnostic value in pediatric patients with ICP. There is increasing evidence that POCUS measurement of the ONSD correlates with ICP, thus appearing as a useful extension of the physical examination in pediatrics, especially in emergency medicine and critical care settings for the initial non-invasive assessment of patients with suspected raised ICP. Its role could be of value even to assess the response to therapy and in the follow-up of patients with diagnosed intracranial hypertension if invasive ICP monitoring is not available. Further studies on more homogeneous and extensive study populations should be performed to establish ONSD reference ranges in the different pediatric ages and to define cut-off values in predicting elevated ICP compared to invasive ICP measurement.
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Lan SY, Tai HL, Lin JJ, Lan FY, Tsai HY, Lin KL. Measurement of optic nerve sheath diameter by ultrasound in healthy term neonates. Pediatr Neonatol 2021; 62:591-597. [PMID: 34226155 DOI: 10.1016/j.pedneo.2021.05.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/17/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Optic nerve sheath diameter (ONSD) ultrasound is a noninvasive and repeatable tool to dynamically evaluate intracranial pressure with high diagnostic accuracy; however, data in neonates are scarce. The aim of this study was to determine the reference value of ONSD and potential influencing factors in healthy term neonates. METHODS We retrospectively reviewed 250 full-term neonates who underwent cranial ultrasound as part of selective newborn screening over a 2-year period. Neonates with any of the following conditions were excluded: using mechanical ventilation, sedatives and/or vasopressors, or signs of infection which needed cerebrospinal fluid analysis and/or intracranial pathologies. Data on sex, gestational age, birth body weight, birth body height, birth head circumference, Apgar score and types of delivery were collected. The neurodevelopmental outcomes were reviewed. RESULTS A total of 234 neonates (123 girls and 111 boys) were included. The mean ONSD value was 3.30 ± 0.27 mm in the right eye and 3.30 ± 0.23 mm in the left eye, with no significant difference between both eyes (p = 0.797). Male neonates had a larger ONSD than female neonates (3.34 ± 0.22 mm versus 3.26 ± 0.20 mm, p = 0.007), and ONSD was correlated with birth weight in the males. Otherwise, there were no statistically significant associations between ONSD and other birth characteristics in both sexes. Most (63%) cases were followed for at least 12 months, and 98% had normal neurodevelopment. CONCLUSION The reference value reported in this study may be used to evaluate the ONSD in healthy term neonates. Sex differences should be considered in this age group.
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Affiliation(s)
- Shih-Yun Lan
- Department of Pediatric Neurology, Saint Paul's Hospital, Taoyuan, Taiwan; Department of Pediatric Neurology, New Taipei City Hospital, Taiwan
| | - Hung-Lin Tai
- Department of Neonatology, Saint Paul's Hospital, Taoyuan, Taiwan
| | - Jainn-Jim Lin
- Division of Pediatric Neurology, Chang Gung Children's Hospital and Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan; Division of Pediatric Critical Care and Pediatric Neurocritical Care Center, Chang Gung Children's Hospital and Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Fan-Yun Lan
- Department of Environmental Health, Harvard University T.H. Chan School of Public Health, Boston, MA, USA
| | - Hsin-Yu Tsai
- Department of Pediatric Neurology, Saint Paul's Hospital, Taoyuan, Taiwan; Yuan-Shun Lee Pediatric Clinic, Taoyuan, Taiwan
| | - Kuang-Lin Lin
- Division of Pediatric Neurology, Chang Gung Children's Hospital and Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.
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Yildizdas D, Aslan N. Is Ocular Sonography a Reliable Method for the Assessment of Elevated Intracranial Pressure in Children? J Pediatr Intensive Care 2021; 10:14-22. [PMID: 33585057 DOI: 10.1055/s-0040-1716385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 05/21/2020] [Indexed: 10/23/2022] Open
Abstract
Point-of-care ultrasound has been widely used by clinicians at the bedside in recent years. Various types of point-of-care ultrasound practices are employed, especially in pediatric emergency rooms and intensive care units. Pediatric intensive care specialists perform point-of-care ultrasound virtually as a part of physical examination since it provides just-in-time vital clinical information, which could assist in acute management strategies in critically ill patients. Measurement of optic nerve sheath diameter using point-of-care ultrasound is a noninvasive and radiation-free technique to determine raised intracranial pressure. Ophthalmic artery and central retinal artery Doppler indices can be used as transcranial Doppler to assess raised intracranial pressure. The aim of this review was to provide detailed information on ultrasonographic measurements of optic nerve sheath diameter and central retinal artery Doppler indices as techniques of interest for predicting increased intracranial pressure in pediatric patients in view of the literature.
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Affiliation(s)
- Dincer Yildizdas
- Department of Pediatric Intensive Care, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Nagehan Aslan
- Department of Pediatric Intensive Care, Faculty of Medicine, Cukurova University, Adana, Turkey
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Yapicioglu H, Aslan N, Sertdemir Y, Yildizdas D, Gulasi S, Mert K. Determination of normal values of optic nerve sheath diameter in newborns with bedside ultrasonography. Early Hum Dev 2020; 145:104986. [PMID: 32335478 DOI: 10.1016/j.earlhumdev.2020.104986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 12/07/2019] [Accepted: 02/13/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Bedside sonographic opthalmic ultrasound measurement of optic nerve sheath diameter (ONSD) is an easy, portabl, noninvasive and a radiation free technique to determine increased intracranial pressure. This prospective, multicenter study was aimed to establish the range of normal values for ONSD in preterm and term newborns with a large study population. METHODS Newborns without intracranial pathology in the Newborn Intensive Care Units and in Obstetrics and Gynecology Departments were enrolled in the study. ONSD was measured at 3 mm distance behind of the right optic nerve head. As 3 mm distance was beyond the optic nerve head in some of the premature newborns, we had also measurements at 2 and 2.5 mm. RESULTS ONSD was measured in 554 newborns. Mean ONSD of preterm babies at 2, 2.5 and 3 mm distances were 3.2 ± 0.3 mm (range 2.0-4.2 mm), 3.3 ± 0.3 mm (range 2.2-4.5 mm) and 3.6 ± 0.2 mm (range 2.9-4.5 mm), (p2.0-2.5 mm < 0.001, p 2.5-3.0mm < 0.001, p2.0-3.0 mm < 0.001) respectively. Mean ONSD of term babies at 3 mm was higher than the mean ONSD of preterm babies in 33 weeks 0 day- 37 weeks 0 days group (p < 0.001). In correlation analysis, a significant, strong and positive correlation was found between ONSD measurements and gestational age, weight, height and head circumference at 2, 2.5 and 3 mm distances. CONCLUSION The normal values reported by the present study may be used for evaluating the ONSD of newborns with different conditions with increased incracranial pressure.
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Affiliation(s)
- Hacer Yapicioglu
- Cukurova University, Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Turkey
| | - Nagehan Aslan
- Cukurova University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Intensive Care, Turkey.
| | - Yasar Sertdemir
- Cukurova University, Faculty of Medicine, Department of Biostatistics, Turkey
| | - Dincer Yildizdas
- Cukurova University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Intensive Care, Turkey
| | - Selvi Gulasi
- Adana City Training and Research Hospital, Department of Pediatrics, Division of Neonatology, Adana, Turkey
| | - Kurthan Mert
- Adana City Training and Research Hospital, Department of Pediatrics, Division of Neonatology, Adana, Turkey
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Zahl SM, Wester K, Gabaeff S. Examining perinatal subdural haematoma as an aetiology of extra-axial hygroma and chronic subdural haematoma. Acta Paediatr 2020; 109:659-666. [PMID: 31637736 PMCID: PMC7154632 DOI: 10.1111/apa.15072] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/29/2019] [Accepted: 10/21/2019] [Indexed: 11/30/2022]
Abstract
AIM Benign external hydrocephalus (BEH), hygroma and chronic subdural haematoma are extra-axial fluid collections in infants. MRI studies have shown that almost half of all new-borns have perinatal subdural blood, generally referred to as subdural haematoma (SDH) or perinatal SDH. Epidemiologically there are striking similarities between chronic SDH and BEH in infants. METHODS Discussion of pathophysiological mechanisms for BEH and chronic SDH, based on existing literature. RESULTS Perinatal SDH is common, and we hypothesise that this condition in some infants develop into extra-axial fluid collections, known as hygroma, BEH or chronic subdural haematoma. The mechanism seems to be an intradural bleeding that creates an obstructive layer preventing normal CSF absorption. The site where the bleeding originates from and those areas enveloped in blood from the primary damaged area are prone to later rebleeds, seen as 'acute on chronic' haematomas. With steady production of CSF and the blockage, increased intracranial pressure drives the accelerated skull growth seen in many of these children. CONCLUSION Perinatal SDH hampers CSF absorption, possibly leading to BEH and chronic SDH, with a high risk of false accusations of abuse. Close monitoring of head circumference could prove vital in detecting children with this condition.
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Affiliation(s)
| | - Knut Wester
- Department of Clinical Medicine K1University of BergenBergenNorway
- Department of NeurosurgeryHaukeland University HospitalBergenNorway
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Arthurs OJ, van Rijn RR, Granata C, Porto L, Hirsch FW, Rosendahl K. European Society of Paediatric Radiology 2019 strategic research agenda: improving imaging for tomorrow's children. Pediatr Radiol 2019; 49:983-989. [PMID: 31115616 PMCID: PMC6598945 DOI: 10.1007/s00247-019-04406-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/05/2019] [Indexed: 11/02/2022]
Abstract
The European Society of Paediatric Radiology (ESPR) research committee was established to initiate, drive forward and foster excellence in paediatric imaging, paediatric image-guided intervention and radiation protection research, by facilitating more evidence-based standards, protocols and multi-institutional collaborations. The ESPR Strategic Research Agenda outlines our current research approach, highlighting several areas of paediatric imaging where the society can help guide current and future research, and emphasizing those areas where early research ("seed") funding may need to be allocated by this and other societies as precursors to larger grant applications. The key aims are to evaluate normal variation in order to be able to confidently diagnose disease states, develop robust image-based classification systems to aid diagnosis and treatment monitoring, and help develop evidence-based clinical guidelines using current literature and experience to identify knowledge gaps. For this reason, the development of evidence-based imaging pipelines, broken down step-by-step to include diagnosis, classification and clinical effectiveness, should be the end goal for each disease entity for each affected child. Here, we outline the 2019 ESPR Strategic Research Agenda along three points in the clinical imaging pipeline: clinical referral, disease diagnosis and evolution, and clinical therapeutic evaluation and effectiveness. Through multicentre trials, using existing high-level experience and expertise, and nurturing the next generation of researchers, we will be able to achieve these aims.
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Affiliation(s)
- Owen J Arthurs
- Department of Radiology, Great Ormond Street Hospital, London, UK. .,NIHR UCL Great Ormond Street Institute of Child Health Biomedical Research Centre, London, UK.
| | - Rick R van Rijn
- Department of Radiology, Emma Children's Hospital - Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Claudio Granata
- Service of Radiology, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Luciana Porto
- Department of Paediatric Neurology, Hospital of Goethe University, Frankfurt am Main, Germany
| | - F Wolfgang Hirsch
- Department of Paediatric Radiology, University Leipzig, Leipzig, Germany
| | - Karen Rosendahl
- Department of Radiology, Haukeland University Hospital, 5020, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
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Oyama J, Mori K, Imamura M, Mizushima Y, Tateishi U. Size of the intracranial optic nerve and optic tract in neonates at term-equivalent age at magnetic resonance imaging. Pediatr Radiol 2016; 46:527-33. [PMID: 26646150 DOI: 10.1007/s00247-015-3495-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 09/21/2015] [Accepted: 10/28/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND The expected MRI-based dimensions of the intracranial optic nerve and optic tract in neonates are unknown. OBJECTIVE To evaluate the sizes of the intracranial optic nerve and optic tract in neonates at term-equivalent age using MRI. MATERIALS AND METHODS We retrospectively analyzed brain MRI examinations in 62 infants (28 boys) without intracranial abnormalities. The images were obtained in infants at term-equivalent age with a 1.5-tesla MRI scanner. We measured the widths and heights of the intracranial optic nerve and optic tract and calculated the cross-sectional areas using the formula for an ellipse. RESULTS The means ± standard deviation of the width, height and cross-sectional area of the intracranial optic nerve were 2.7 ± 0.2 mm, 1.7 ± 0.2 mm and 3.5 ± 0.5 mm(2), respectively. The width, height and cross-sectional area of the optic tract were 1.5 ± 0.1 mm, 1.6 ± 0.1 mm and 2.0 ± 0.2 mm(2), respectively. Using univariate and multivariate analyses, we found that postmenstrual age showed independent intermediate positive correlations with the width (r = 0.48, P < 0.01) and cross-sectional area (r = 0.40, P < 0.01) of the intracranial optic nerve. The lower bounds of the 95% prediction intervals for the width and cross-sectional area of the intracranial optic nerve were 0.07 × (postmenstrual age in weeks) - 0.46 mm, and 0.17 × (postmenstrual age in weeks) - 4.0 mm(2), respectively. CONCLUSION We identified the sizes of the intracranial optic nerve and optic tract in neonates at term-equivalent age. The postmenstrual age at MRI independently positively correlated with the sizes.
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Affiliation(s)
- Jun Oyama
- Department of Radiology, Tsuchiura Kyodo General Hospital, 11-7 Manabeshinmachi, Tsuchiura, Ibaraki, 300-0053, Japan.
| | - Kouichi Mori
- Department of Radiology, Tsuchiura Kyodo General Hospital, 11-7 Manabeshinmachi, Tsuchiura, Ibaraki, 300-0053, Japan
| | - Masatoshi Imamura
- Department of Neonatology, Tsuchiura Kyodo General Hospital, Tsuchiura, Ibaraki, Japan
| | - Yukiko Mizushima
- Department of Ophthalmology, Tsuchiura Kyodo General Hospital, Tsuchiura, Ibaraki, Japan
| | - Ukihide Tateishi
- Departments of Diagnostic Radiology and Nuclear Medicine, Tokyo Medical and Dental University, Tokyo, Japan
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Frydrychowski AF, Szarmach A, Czaplewski B, Winklewski PJ. Subarachnoid space: new tricks by an old dog. PLoS One 2012; 7:e37529. [PMID: 22701518 PMCID: PMC3365109 DOI: 10.1371/journal.pone.0037529] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Accepted: 04/25/2012] [Indexed: 11/18/2022] Open
Abstract
PURPOSE The purpose of the study was to: (1) evaluate the subarachnoid space (SAS) width and pial artery pulsation in both hemispheres, and (2) directly compare magnetic resonance imaging (MRI) to near-infrared transillumination/backscattering sounding (NIR-T/BSS) measurements of SAS width changes in healthy volunteers. METHODS The study was performed on three separate groups of volunteers, consisting in total of 62 subjects (33 women and 29 men) aged from 16 to 39 years. SAS width was assessed by MRI and NIR-T/BSS, and pial artery pulsation by NIR-T/BSS. RESULTS In NIR-T/BSS, the right frontal SAS was 9.1% wider than the left (p<0.01). The SAS was wider in men (p<0.01), while the pial artery pulsation was higher in women (p<0.01). Correlation and regression analysis of SAS width changes between the back- and abdominal-lying positions measured with MRI and NIRT-B/SS demonstrated high interdependence between both methods (r = 0.81, p<0.001). CONCLUSIONS NIR-T/BSS and MRI were comparable and gave equivalent modalities for the SAS width change measurements. The SAS width and pial artery pulsation results obtained with NIR-T/BSS are consistent with the MRI data in the literature related to sexual dimorphism and morphological asymmetries between the hemispheres. NIR-T/BSS is a potentially cheap and easy-to-use method for early screening in patients with brain tumours, increased intracranial pressures and other abnormalities. Further studies in patients with intracranial pathologies are warranted.
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Affiliation(s)
| | | | - Bartosz Czaplewski
- Department of Teleinformation Networks, Gdansk University of Technology, Gdansk, Poland
| | - Pawel J. Winklewski
- Institute of Human Physiology, Medical University of Gdansk, Gdansk, Poland
- * E-mail:
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Garcia RF, Lederman HM, Brandão J. Estudo dos ventrículos cerebrais por ultrassonografia, na criança normal, nascida a termo, de 1 a 6 meses. Radiol Bras 2011. [DOI: 10.1590/s0100-39842011000600004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJETIVO: Estudo dos ventrículos cerebrais por ultrassonografia, com o objetivo de estabelecer de forma simplificada parâmetros para diagnóstico das dilatações ventriculares leves. MATERIAIS E MÉTODOS: Foram estudadas, prospectivamente, 105 crianças, normais, nascidas a termo, com um total de 181 exames realizados, mensalmente até os 6 meses, através da observação de dados morfológicos e medidas. As medidas efetuadas foram: índice ventrículo/hemisfério, diâmetro anteroposterior do corno anterior e do quarto ventrículo. RESULTADOS: Obtiveram-se média, desviopadrão e percentis de normalidade das medidas estabelecidas, em cada faixa etária. A pesquisa de halo anecoico nos dois terços posteriores do plexo coroide em plano coronal VI, para avaliação dos cornos temporal/posterior, foi ausente, e o terceiro ventrículo mostrou-se como uma fenda anecoica, menor que 1 mm, em plano coronal V em todas as crianças do estudo. CONCLUSÃO: Os achados morfológicos relacionados aos cornos temporal/posterior e ao terceiro ventrículo, associados ao percentil 95 das medidas como limite superior da normalidade, podem ser utilizados para diagnóstico simplificado de dilatações ventriculares leves.
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Affiliation(s)
| | | | - Julio Brandão
- Hospital Beneficência Portuguesa de São Paulo, Brasil
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