Temperaturbelastung von patienten bei routine-kernspin-untersuchungen

Translated title of the contribution: Temperature stress for patients during routine magnetic resonance imaging

R. Tomczak, O. Staneczek, A. Wunderlich, Y. Wang, M. Blasche, N. Rilinger, A. Rieber, H. J. Brambs

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Purpose: To determine energy exposure and temperature changes in routine magnetic resonance imaging practice. Materials and Methods: Body core and skin temperatures were compared in 155 persons (143 patients, 12 volunteers) undergoing routine magnetic resonance examinations with a 1.5 T field- strength magnetic resonance tomography unit using a fluoroptic temperature measurement system. Results: Average applied energy was 0.3 W/kg for whole body and 1.92 W/kg for spatially localized SAR. The maximum whole-body SAR was 1.43 W/kg spatially localized. Body core temperatures differed from those of the control group by a median 0.1 °C and only a few patients (16.8%) exceeded the limit (± 0.5%) at which regulatory mechanisms set in. All patients remained within the normal physiological circadian temperature range (± 1 °C). Skin temperature rose a median 0.49 °C, with a maximal increase of 5.31 °C, which may be considered to be within the limits of physiological temperature change. Conclusion: Clinically relevant warning of the body is unlikely in routine magnetic resonance imaging practice.

Translated title of the contributionTemperature stress for patients during routine magnetic resonance imaging
Original languageGerman
Pages (from-to)639-644
Number of pages6
JournalRoFo Fortschritte auf dem Gebiete der Rontgenstrahlen und der Neuen Bildgebenden Verfahren
Volume169
Issue number6
StatePublished - Dec 1 1998
Externally publishedYes

Keywords

  • Biological effects
  • Magnetic resonance (MR)
  • Temperature

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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    Tomczak, R., Staneczek, O., Wunderlich, A., Wang, Y., Blasche, M., Rilinger, N., Rieber, A., & Brambs, H. J. (1998). Temperaturbelastung von patienten bei routine-kernspin-untersuchungen. RoFo Fortschritte auf dem Gebiete der Rontgenstrahlen und der Neuen Bildgebenden Verfahren, 169(6), 639-644.