16/07/2025
New research shows that a standard imaging tool used in cancer can be safely used in selected pregnant women with breast cancer, offering crucial information to guide treatment decisions without compromising foetal safety.
The analysis was led by Dr Karen DeSouza, Consultant Medical Oncologist, and Dr Stefan Vöö, Consultant Nuclear Medicine Physician, who both work across UCLH and Whittington Health NHS Trust.
Dr DeSouza said: “For carefully selected patients, PET imaging can provide vital staging information that directly influences treatment, including the timing of surgery and administration of chemotherapy. In this small series, we saw no short-term harm to the foetus and meaningful clinical benefit to the mother. These findings offer much-needed reassurance to both clinicians and patients navigating cancer care during pregnancy.”
Dr Vöö said: “By significantly reducing the dose and using optimised imaging protocols, we were able to keep foetal radiation exposure well below levels associated with any known risk. These results show that PET imaging, when used judiciously, can be both safe and clinically impactful during pregnancy.”
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