
Australian authorities are investigating the death of a Melbourne woman who died from a contrast reaction during a heart CT scan as part of a workplace wellness program for senior executives, according to an article published on 6 May in the Age.
Peta Hickey, 43, died eight days after the heart CT scan, having experienced an anaphylactic reaction resulting in multiple organ failure, according to the article. She received the scan as part of a wellness program started by her employer after a colleague nearly died of a heart attack.
The inquest is focusing on the radiologist on duty at the time of the scan, Dr. Gavin Tseng of Future Medical Imaging Group. Tseng was in charge of speaking with Hickey before injecting the contrast, and he told investigators that he initially thought she was having an intracranial reaction and allegedly was unaware seizures were a symptom of severe anaphylaxis.
Dr. Gavin Tseng. Photo courtesy of Paul Jeffers.Hickey wasn't given potentially lifesaving adrenaline because Tseng said he could not do two things at once -- instructing center staff in administering adrenaline while he was managing her airway support, according to the story.
Tseng said the staff on hand were administrative and radiography personnel and not medical practitioners. He also said that only one medical practitioner or nurse is assigned to Future Medical Imaging Group clinics at any one time.
"This is a really important story: It reminds us that we are first and foremost medical practitioners and we must be able to manage a team and direct and/or administer appropriate treatment. We must never give a medication (including contrast agents) if we cannot manage the known risks, with anaphylaxis being the most serious of all," a source told AuntMinnieEurope.com on 8 May.
"Even in a public hospital, there is no guarantee that a medical emergency call will be responded to in a timely manner: it would just take two at the same time for one patient to be at risk of missing out. All radiologists need to know, and have rehearsed, what to do," said the source, adding that an anaphylaxis management chart next to the workstation may be a good idea.
The inquest into the death is likely to continue for three weeks.
The Australian Commission on Safety and Quality in Healthcare Commission, which sets standards for clinical care, has produced information about acute anaphylaxis clinical care.













![Overview of the study design. (A) The fully automated deep learning framework was developed to estimate body composition (BC) (defined as subcutaneous adipose tissue [SAT] in liters; visceral adipose tissue [VAT] in liters; skeletal muscle [SM] in liters; SM fat fraction [SMFF] as a percentage; and intramuscular adipose tissue [IMAT] in deciliters) from MRI. The fully automated framework comprised one model (model 1) to quantify different BC measures (SAT, VAT, SM, SMFF, and IMAT) as three-dimensional (3D) measures from whole-body MRI scans. The second model (model 2) was trained to identify standardized anatomic landmarks along the craniocaudal body axis (z coordinate field), which allowed for subdividing the whole-body measures into different subregions typically examined on clinical routine MRI scans (chest, abdomen, and pelvis). (B) BC was quantified from whole-body MRI in over 66,000 individuals from two large population-based cohort studies, the UK Biobank (UKB) (36,317 individuals) and the German National Cohort (NAKO) (30,291 individuals). Bar graphs show age distribution by sex and cohort. BMI = body mass index. (C) After the performance assessment of the fully automated framework, the change in BC measures, distributions, and profiles across age decades were investigated. Age-, sex-, and height-adjusted body composition reference curves were calculated and made publicly available in a web-based z-score calculator (https://circ-ml.github.io).](https://img.auntminnieeurope.com/mindful/smg/workspaces/default/uploads/2026/05/body-comp.XgAjTfPj1W.jpg?auto=format%2Ccompress&fit=crop&h=112&q=70&w=112)




