Strahlendosis der verschiedensten CT-Verfahren in der Lungendiagnostik

Translated title of the contribution: Radiation dosage of various CT-methods in lung diagnostics

Gertraud Heinz-Peer, F. Weninger, R. Nowotny, C. J. Herold

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations


Introduction of the computed tomography index CTDI and the multiple scan average dose (MSAD) has led to standardization of the dose description in CT examinations. Despite the use of these dose parameters, many different dosages are reported in the literature for different CT methods. In addition, there is still a wide range of radiation dosimetry results reported for conventional CT, helical CT, and HRCT used in chest examinations. The variations in dosage are mainly due to differences in factors affecting the dose, i.e. beam geometry, beam quality, scanner geometry ('generation'), and operating parameters. In addition, CT dosimetry instrumentation and methodology make a contribution to dosages. Recent studies calculating differences in factors affecting dosage and CT dosimetry and using similar operating parameters, show similar results in CT dosimetry for conventional and helical CT. On the other hand, dosages for HRCT were greatly reduced. This was mainly caused by narrow beam collimation and increasing section spacing.

Translated title of the contributionRadiation dosage of various CT-methods in lung diagnostics
Original languageGerman
Pages (from-to)470-474
Number of pages5
Issue number6
StatePublished - Jun 1996
Externally publishedYes


  • CT methods
  • lung diagnostic
  • radiation dosage

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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