Computed tomography findings of asphyxial suicide by the inhalation of helium inside a plastic bag

Figures & data

Figure 1. Postmortem pulmonary cranial computed tomography (CT) findings. CT reveals the loss of cerebral sulcus, suggesting diffuse brain edema.

Figure 2. Postmortem pulmonary thoracic CT findings. CT reveals diffuse lung edema.

Table 1. Case reports of patients who became symptomatic due to helium exposure, excluding diving.

Year	Reporter	Age (years)	Sex	Mechanism	Method	Outcome
2017	Kato	20	Male	Suicide	Plastic bag	Survived
2017	Hayashi	22	Female	Suicide	Balloon	Survived
2016	Yamamura	30	Male	Suicide	Plastic bag	Died
2016	Doi	12	Female	Accident	Aspiration	Survived
2002	Yoshitome	16	Male	Unknown	Balloon	Died