New Scan Offers Hope for Faster Endometriosis Diagnosis
A new molecular imaging agent, ‘99mTc-maraciclatide’, combined with a non-invasive SPECT-CT scan, shows promise for significantly improving the diagnosis and monitoring of endometriosis, potentially reducing the average nine-year wait for a diagnosis in the UK. The findings, published in The Lancet Obstetrics, Gynaecology & Women’s Health, suggest the scan can detect endometriosis with comparable accuracy to laparoscopic surgery.
Understanding Endometriosis and the Need for Better Diagnostics
Endometriosis is a common inflammatory disease affecting an estimated 190 million women worldwide, or approximately 1 in 10 women of childbearing age. The condition occurs when tissue similar to the lining of the uterus grows outside of it, often in the pelvis, but sometimes in other areas like the lungs. This ectopic tissue can cause inflammation, pain and infertility.
Currently, diagnosing endometriosis often requires invasive procedures like laparoscopy. The lengthy diagnostic process can delay treatment and significantly impact quality of life. The new imaging technique aims to provide a less invasive and faster alternative.
How the New Imaging Agent Works
The study, titled “Detecting Endometriosis Expressed Integrins using Technetium-99m (DETECT)”, evaluated 19 individuals with suspected or confirmed endometriosis. Participants received an intravenous injection of 99mTc-maraciclatide, a molecular imaging agent developed by Serac Healthcare Ltd, followed by a SPECT-CT scan.
This agent specifically binds to αvβ3 integrins, proteins that are upregulated during angiogenesis – the formation of new blood vessels. Angiogenesis is a key characteristic of inflammatory diseases like endometriosis. By visualizing this process, the scan can identify areas of disease.
Study Results: Accuracy and Potential Impact
The study found that the non-invasive SPECT-CT scan performed comparably to laparoscopic surgery in detecting endometriosis. In 16 out of 19 patients (84%), the imaging technique accurately identified the presence or absence of the condition. The scan successfully visualized endometriosis in 14 of the 17 patients whose diagnosis was confirmed through surgery, including two cases of thoracic endometriosis, a rare form where tissue grows in the chest cavity.
The research was a collaboration between Serac Healthcare Ltd and the Nuffield Department of Women’s & Reproductive Health at the University of Oxford.
Looking Ahead: The Future of Endometriosis Diagnosis
This new imaging technique represents a significant step forward in the diagnosis and management of endometriosis. By offering a less invasive and potentially faster diagnostic pathway, it could improve the quality of life for millions of women worldwide. Further research and wider clinical implementation are needed to fully realize the potential of this innovative approach.