Radiation-induced temporary hair loss as a radiation damage only occurring in patients who had the combination of MDCT and DSA
- 592 Downloads
As imaging technologies become increasingly advanced, it is possible to obtain detailed morphological information as well as functional imaging data. In some imaging technologies, the radiation dose increases with the ability to obtain better images or more detailed information. We encountered three cases of temporary bandage-shaped hair loss, which was caused by perfusion studies of the head by multi-detector row computed tomography (MDCT) for evaluation of cerebral blood flow in patients with vascular disorders. In all three patients with temporary hair loss, two angiographies of the head had been performed in the period of serial CT examinations. This suggested the possibility that radiation exposure from angiography performed in serial examinations, combined with the perfusion studies of the head with MDCT, played an important role in this temporary, bandage-shaped hair loss. Radiologists should be aware that a cumulative or multiplier effect of radiation exposure from multiple diagnostic techniques may result in hair loss and other types of radiation complications.
KeywordsHair loss MDCT Perfusion study by MDCT Complication of radiation Skin Effects of irradiation on
We thank Ms. Mary McAllister at the Johns Hopkins University School of Medicine for the review of this paper.
- 5.Kalra MK, Maher MM, Saini S (2003) Multisclice CT update on radiation and screening. Eur Radiol 13[Suppl 5]:M129–M133Google Scholar
- 9.Miles KA (2003) Acute cerebral stroke imaging and brain perfusion with the use of high-concentration contrast media. Eur Radiol 13[Suppl 5]:M117–M120Google Scholar
- 10.Yamamoto K, Andou T, Akazawa H (2002) Absorbed dose in CT: comparison by CT dose index. Jpn J Radiol Technol 58:495–501Google Scholar
- 11.ICRP Publication 41 (1984) Non-stochastic effects of ionizing radiation. Annals of the ICRP 14Google Scholar
- 12.Valentin J (2000) Avoidance of radiation injuries from interventional procedures. Ann ICRP 30:7–67Google Scholar