MRI vs ultrasound: which is better at spotting breast cancer in dense breasts?
NCT ID NCT05797545
First seen Apr 26, 2026 · Last updated Jun 23, 2026 · Updated 11 times
Summary
This study compares two imaging methods—breast ultrasound and breast MRI—to see which is better at detecting new breast cancers in women with dense breasts who have already had breast cancer. About 1,756 women will be randomly assigned to get either an abbreviated MRI or a full MRI, plus ultrasound. The goal is to find which approach finds more cancers and has fewer false alarms.
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Inje University Busan Paik Hospital
Busan, BusanJin-Gu, 47392, South Korea
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Samsung Medical center
Seoul, Gangnam-gu, 06351, South Korea
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Soon Chun Hyang University Hospital Seoul
Seoul, Yongsan-Gu, 04401, South Korea
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Breast MRI and breast ultrasound
What this could lead to
If successful, this could show that abbreviated MRI is better than ultrasound for finding new breast cancers in women with dense breasts, leading to more effective surveillance.
What could go wrong
This is a diagnostic comparison, not a treatment trial. The results may not change current practice if MRI is too costly or less accessible. Also, the study is observational in nature.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.