J Korean Radiol Soc.  1984 Mar;20(1):33-36. 10.3348/jkrs.1984.20.1.33.

A study on radiation exposure dose at brain CT

• Lee EH
• Kim CW

• KMID: 2463062
• DOI: http://doi.org/10.3348/jkrs.1984.20.1.33

Abstract

Radiation exposure dose for patients during brain CT scan with General Electric C.T./T.8800 was measured using CaF. :Mn thermoluminescent dosimeter chips. The skin dose in single slice scan was 1.26±0.1 0 rad, and that in 9 slice scan was 2.06±0.16 rad. So the ratio was 1.63. The surface dose in profile along axial distance in multiple slice scan was also measured, and was found to be low at the junction of 2 slices. The lens dose in multiple slice scan was 0.27±0.05 rad , too small to induce any pathologic condition. As noted from the above data, the radiation exposure dose during CT scanning is not high compared with other radiologic examinations.

MeSH Terms

Brain*
Humans
Radiation Exposure*
Skin
Tomography, X-Ray Computed