Low-dose Technique of Spiral CT of the Lungs in the Diagnostics of Metastatic
Focal Findings in Children and Adolescents
Tůma S.1, Neuwirth J.1, Čumlivská E.1, Mališ J.2, Kybic J.3, Šanda J.1, Fricová-Poulová M.1, Adla T.1, Polovinčák M.1
Klinika zobrazovacích metod 2. LF UK a FN Motol, Praha1 přednosta prof. MUDr. J. Neuwirth, CSc. Hematoonkologická klinika 2. LF UK a FN Motol, Praha2 přednosta prof. MUDr. J. Starý, CSc. České vysoké učení technické, Fakulta elektrotechnická, katedra kybernetiky, Praha3 vedoucí prof. Ing. V. Mařík, DrSc. |
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Summary:
Although primary malignant neoplasms in children and adolescents occur rarely, the detection
of metastatic lung nodes of malignant tumors of soft or bone tissues belongs to routine observations.
The study, dealing with their observation in the group of 26 children and 26 adolescents
up to 19 years of age is based on 83 examinations performed by the technique of spiral CT with
low-dose ionizing radiation (LDSCT). For the regulation of the amount of X-ray radiation the authors
decreased the value of heating current on anode of the X-ray tube to 63mA. The decrease of
the dose did not influence quality of the examination as well as image quality of the findings including
the detection of nodes on the 3mm diameter. This procedure appears to be suitable for the
examination of children and adolescents and may be recommended as a standard procedure.
Key words:
lung CT, children, adolescents, metastatic nodes, low dose of ionizing radiation
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