Abstract:
:Certain misleading appearances are peculiar to pediatric uroradiology. The most frequently encountered pitfalls are related to the bladder, to vesicoureteral reflux, and to the duplicated collecting system. The bi-chambered nature of the child's bladder, and the rapid settling of contrast material to the most dependent portion causes many pitfalls in diagnosis. When the child is prone, normal ureters may seem to be ectopic, and ureteroceles may become invisible. When the child is supine, the volume of urine in the bladder may be grossly under-estimated. Reflux can mimic function at urography. The dynamic nature of reflux leads to under-estimation of its presence and degree on the IVP and static cystogram. Reflux into an already dilated system can lead to over-estimation of its degree. Aberrant micturition with rapid refilling of the bladder can simulate incomplete emptying. The diagnosis of "ectopic ureterocele" is based on indirect evidence. Any condition that affects the urinary apparatus in the same way will have a similar appearance. A hugh ureterocele may have a small ureter, and massive reflux into a lower pole ureter may make the diagnosis of duplication difficult. Ureteroicele "look-alikes", and effacement or intussusception of the ureterocele are cystographic pitfalls. Lower pole ureteropelvic junction obstruction and Wilms tumor in the lower portion of a kidney can have surprisingly similar appearances.
journal_name
Pediatr Radioljournal_title
Pediatric radiologyauthors
Lebowitz RL,Avni FEdoi
10.1007/BF01644339subject
Has Abstractpub_date
1980-09-01 00:00:00pages
15-31issue
1eissn
0301-0449issn
1432-1998journal_volume
10pub_type
杂志文章abstract::Airway compression is a common problem in children with certain forms of congenital heart disease. Although various surgical approaches are available to overcome this form of airway obstruction, internal stenting is necessary in a minority of patients. It can be difficult to assess the success of stenting at the time ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-006-0174-6
更新日期:2006-08-01 00:00:00
abstract::The results of MRI and MIBG scintigraphy performed on the spine of 14 children with neuroblastoma are reported. In 6 cases of diffuse spinal bone marrow tumor infiltration, diagnosis is easier with MIBG scintigraphy than with MRI. In 5 cases, MRI detected hyposignal of the vertebral body without any spinal abnormality...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02013507
更新日期:1992-01-01 00:00:00
abstract::Pediatric cancers often have specific molecular fingerprints making them primary candidates for the development of targeted imaging techniques. Tumor-targeted tracers have the potential to substantially advance the sensitivity and specificity of imaging techniques by improving tumor detection and characterization. Thi...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-008-0878-x
更新日期:2008-11-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02467295
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Primary placement of percutaneous radiologic button gastrostomy has been successfully performed in adults but research is lacking as to its success in children during cancer treatment. OBJECTIVE:To assess the safety and effectiveness of such treatment at a single center. MATERIALS AND METHODS:We conducted ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-015-3426-5
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:MRI is the most sensitive imaging modality in juvenile idiopathic arthritis (JIA), but has practical limitations. Optimizing the scanning protocol is, therefore, necessary to increase feasibility and patient comfort. OBJECTIVE:To determine the feasibility of bilateral non-contrast-enhanced open-bore MRI of ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-011-2306-x
更新日期:2012-04-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-013-2866-z
更新日期:2014-05-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-018-4279-5
更新日期:2019-03-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-005-1546-z
更新日期:2005-11-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-005-1523-6
更新日期:2005-11-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02387506
更新日期:1986-01-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02012113
更新日期:1994-01-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-014-3148-0
更新日期:2015-01-01 00:00:00
abstract::A retrospective study of the CT data of the brain was carried out in 48 newborns with neonatal subarachnoid hemorrhage. In addition to the posterior interhemispheric opacities generally accepted as an index of this type of bleeding, anterior interhemispheric, paravermian, cisternal and supratentorial hyperdensities mu...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02012955
更新日期:1990-01-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00975684
更新日期:1978-06-19 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-013-2686-1
更新日期:2013-10-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-001-0646-7
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:Whole-body MRI is used for staging paediatric Hodgkin lymphoma, commonly using size thresholds, which fail to detect disease in normal-size lymph nodes. OBJECTIVE:To investigate quantitative whole-body MRI metrics for nodal characterisation. MATERIALS AND METHODS:Thirty-seven children with Hodgkin lymphoma...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-019-04463-9
更新日期:2019-09-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-017-4014-7
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:In contrast to adults, intraparenchymal haemorrhage (IPH) is at least as common as ischaemic stroke in children. There is often uncertainty about the most appropriate modality for imaging in the acute stage. OBJECTIVE:To examine the diagnostic value of MRI and MR angiography (MRA) in the detection of underl...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-006-0236-9
更新日期:2006-09-01 00:00:00
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journal_title:Pediatric radiology
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doi:10.1007/s00247-005-0016-y
更新日期:2006-01-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02343422
更新日期:1984-01-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-009-1519-8
更新日期:2010-07-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-015-3464-z
更新日期:2016-02-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02011729
更新日期:1991-01-01 00:00:00
abstract::Pediatric multiple sclerosis (MS) deserves special attention because of its impact on cognitive function and development. Although knowledge regarding pediatric MS has rapidly increased, understanding the peculiarities of this population remains crucial for disease management. There is limited expertise about the effi...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-019-04582-3
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Optic pathway gliomas (OPGs) are common pediatric brain tumors that pose significant clinical challenges with regard to predicting which tumors are likely to become symptomatic and require treatment. These tumors can arise sporadically or in the context of the inherited cancer predisposition syndrome neurofi...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-008-1003-x
更新日期:2008-12-01 00:00:00
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journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02010662
更新日期:1989-01-01 00:00:00
abstract::A case of Feuerstein-Mims syndrome (naevus sebaceous, convulsions and mental retardation) is described in association with vitamin D resistant reckets. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00975318
更新日期:1976-12-15 00:00:00
abstract::The pituitary gland can demonstrate a variety of pathologies with different clinical presentations. Amongst them, pituitary abscess is a rare infectious disease for which contrast-enhanced MRI aids the diagnostic pathway. We present a 16-year-old girl with imaging and surgical findings consistent with primary pituitar...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-009-1435-y
更新日期:2010-02-01 00:00:00