Abstract:
:The objective of the study was to determine the values of Doppler resistance indices (RIs) in intrarenal arteries in healthy children. Color duplex Doppler sonography of intrarenal arteries was performed in 163 children and 58 adult patients, with the absence of clinical or laboratory pathologic changes of the urinary tract. All patients were classified following results of exploratory data analysis into three age groups: (a) 51 children between 2 and < 6 years of age; (b) 112 children 6-16 years of age; and (c) adults. The RIs were compared between different age groups. The mean RI +/- 1 SD values in group 1 were 0.705 +/- 0.018 (range 0.67-0.75), in group 2 0.605 +/- 0.029 (range 0.55-0.65), and in the adult group 0.604 +/- 0.035 (range 0.54-0.68). In the group of the youngest children (group 1), the RIs were significantly higher (p < 0.01) in comparison with the other group of children and the adult group. No statistically significant difference was observed between the group of children 6-16 years of age and the adult group. RI < 0.70 was noted in all children above 6 years of age; however, in younger children, RI > or = 0.70 was observed in 72.5% (37 of 51) of children. Resistance index in early childhood was considerably higher as compared with older children and the adult population: Apparently the RI value drops to adult level at approximately 6 years of age. The utilization of a threshold RI value of 0.70 for the increased renal vascular resistance in adults can also be applied to children over 6 years of age.
journal_name
Eur Radioljournal_title
European radiologyauthors
Kuzmić AC,Brkljacić B,Ivanković D,Galesić Kdoi
10.1007/s003300000466subject
Has Abstractpub_date
2000-01-01 00:00:00pages
1644-8issue
10eissn
0938-7994issn
1432-1084journal_volume
10pub_type
杂志文章abstract:OBJECTIVES:Accurately predicting the WHO classification of thymomas is urgently needed to optimize individualized therapeutic strategies. We aimed to develop and validate a combined radiomics nomogram for personalized prediction of histologic subtypes in patients with thymomas. METHODS:A total of 182 thymoma patients ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07074-3
更新日期:2021-01-01 00:00:00
abstract::To evaluate the efficiency of laser thermocoagulation under computed tomography (CT) guidance in the treatment of osteoid osteoma within a strictly pediatric group. Twenty-five patients aged 4 to 17 years were treated under CT by laser thermocoagulation. The nidus measured on average 10.1 mm. Pain relief was the main ...
journal_title:European radiology
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更新日期:2009-03-01 00:00:00
abstract:OBJECTIVES:The aim of the present study was to histologically compare chondrotoxicity in surgically harvested intervertebral discs (IVDs) of patients following discoblock, discography, or no preoperative intervention. METHODS:Thirty patients (IVD degeneration Modic ≥ 2°, Pfirrmann 3° or 4°) at L4/5 or L5/S1 who were p...
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pub_type: 杂志文章,随机对照试验
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更新日期:2017-01-01 00:00:00
abstract::Traditionally, Doppler ultrasound has been used to estimate blood flow as the mean velocity multiplied by the vessel area, but this is subject to significant errors and may be difficult to perform accurately. Microbubbles, developed as contrast agents for ultrasound, were initially envisaged as useful for increasing t...
journal_title:European radiology
pub_type: 杂志文章,评审
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更新日期:1999-01-01 00:00:00
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更新日期:2009-01-01 00:00:00
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journal_title:European radiology
pub_type: 临床试验,杂志文章,多中心研究
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更新日期:2003-09-01 00:00:00
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更新日期:1999-01-01 00:00:00
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更新日期:2006-02-01 00:00:00
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更新日期:2013-06-01 00:00:00
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更新日期:2020-02-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2010-12-01 00:00:00
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更新日期:2021-01-01 00:00:00
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更新日期:2021-01-25 00:00:00
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更新日期:2002-07-01 00:00:00
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更新日期:2015-10-01 00:00:00
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更新日期:1999-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2008-08-01 00:00:00
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更新日期:2002-06-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2009-04-01 00:00:00
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更新日期:2004-03-01 00:00:00
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更新日期:2006-04-01 00:00:00
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pub_type: 已发布勘误
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更新日期:2019-12-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2017-07-01 00:00:00