A comparison between ultrasonography and single-phase computed tomography for preoperative assessment of solid abdominal tumors in children
J. pediatr. (Rio J.)
;
99(1): 17-22, Jan.-Feb. 2023. tab, graf
Article
in English
|
LILACS-Express
| LILACS
| ID: biblio-1422022
ABSTRACT
Abstract Objective:
This study aimed to estimate the performance of single-phase-enhanced computed tomography and ultrasonography examinations in the preoperative evaluation of solid abdominal tumors and their relationship with relevant adjacent structures in children.Methods:
This retrospective study included 50 pediatric patients with malignant solid abdominal tumors treated with surgical resection between 2009-2017. Preoperative computed tomography and ultrasonography were compared to operative findings (gold standard) in the diagnosis of invasion or encasement of adjacent structures. Accuracy, sensitivity, specificity, and positive and negative predictive values were evaluated.Results:
Renal (20.4%) and neuroblastic (19.4%) tumors were the most common. Complete surgical resection with negative margins was achieved in 44 (88%) patients. The comparison between single-phase-enhanced computed tomography and ultrasonography findings showed the followingresults:
sensitivity = 90.3% vs 86.6%, specificity = 86.8% vs 94.6%, negative predictive value = 95.3% vs 94.4%, positive predictive value = 75.3% vs 86.9%, and accuracy = 87.9% vs 92.2%. The correlation (kappa index) between computed tomography and ultrasonography examinations was 0.72 (p < 0.001). In 14% (7/50) of the patients, the invasion of adjacent structures was diagnosed by ultrasonography but not by computed tomography (1 patient had 2 invaded structures).
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Index:
LILACS (Americas)
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Language:
English
Journal:
J. pediatr. (Rio J.)
Journal subject:
Pediatrics
Year:
2023
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Hospital de Clínicas de Porto Alegre/BR
/
Universidade Federal do Rio Grande do Sul/BR
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