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.

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

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Keywords

  • Biological effects
  • Magnetic resonance (MR)
  • Temperature

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Cite this

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.