Pediatric Radiology

, Volume 9, Issue 3, pp 145–148 | Cite as

Pediatric pulmonary CT-scanning

Anaesthesia-induced changes
  • Karen Damgaard-Pedersen
  • T. Qvist


Forty three lung scans, obtained in 29 anaesthetized children, were evaluated and compared with 85 scans performed in 52 sedated children. Confluent high absorptive areas in the lower parts of the lungs were found in 35 (81%) of the scans performed in children under general anaesthesia but such areas were not found in the scans performed under sedation. — For general anaesthesia, halothane-N2O-O2 was used in all but one patient. The radiological changes are presumably due to a fall in functional residual capacity with consequent airway closure. — It is important not to misinterpret these anaesthesia-induced pulmonary changes which may obscure or mimic true pathological lesions, such as parenchymal and pleural metastases.

Key words

Computer tomography CT scanning Pediatric CT Pulmonary CT Anaesthesia 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Bendixen HH, Hedley-Whyte J, Laver MB (1963) Impaired oxygenation in surgical patients during general anesthesia with controlled ventilation. A concept of atelectasis. N Engl J Med 269:991PubMedGoogle Scholar
  2. 2.
    Brasch RC, Korobkin M, Gooding CA (1978) Computed body tomography in children: evaluation of 45 patients. AJR 131:21PubMedGoogle Scholar
  3. 3.
    Damgaard-Pedersen K, Jensen J, Hertz H (1978) CT whole-body scanning in pediatric radiology. Pediatr Radiol 6:222PubMedGoogle Scholar
  4. 4.
    Don HF, Wahba WM, Craig DB (1972) Airway closure gas trapping, and the functional residual capacity during anesthesia. Anesthesiology 36:533PubMedGoogle Scholar
  5. 5.
    Froese AB, Bryan AC (1974) Effects of anesthesia and paralysis on diaphragmatic mechanics in man. Anesthesiology 41:242PubMedGoogle Scholar
  6. 6.
    Hewlett AM, Hulands GH, Nunn JF, et al (1974) Functional residual capacity during anaesthesia. III: Artificial ventilation. Br J Anaesth 46:495PubMedGoogle Scholar
  7. 7.
    Jost RG, Sagel SS, Stanley RJ, Levitt RG (1978) Computed tomography of the thorax. Radiology 126:125PubMedGoogle Scholar
  8. 8.
    Kollins SA (1977) Computed tomography of the pulmonary parenchyma and chest wall. Radiol Clin North Am 15:297PubMedGoogle Scholar
  9. 9.
    Lichtiger M, Landa JF, Hirsch JA (1975) Velocity of tracheal mucus in anesthetized women undergoing gynecologic surgery. Anesthesiology 42:753PubMedGoogle Scholar
  10. 10.
    Muhm JR, Brown LR, Crowe JK (1977) Detection of pulmonary nodules by computed tomography. AJR 128:267PubMedGoogle Scholar
  11. 11.
    Schaner EG, Chang AE, Doppman JL, Conkle DM, Flye MW, Rosenberg SA (1978) Comparison of computed and conventional whole lung tomography in detecting pulmonary nocules: A prospective radiologic-pathologic study. AJR 131:51PubMedGoogle Scholar

Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • Karen Damgaard-Pedersen
    • 1
    • 2
  • T. Qvist
    • 1
    • 2
  1. 1.Department of Diagnostic RadiologyRigshospitalet (University Hospital)CopenhagenDenmark
  2. 2.Department of AnaesthesiaRigshospitalet (University Hospital)CopenhagenDenmark

Personalised recommendations