US President Donald Trump has "excellent" cardiovascular health, his doctor said Monday, citing an MRI taken during an unannounced hospital visit that ignited fresh scrutiny over his medical condition.

The Republican billionaire, who turns 80 in June, has long faced criticism for limited transparency around his health. His sudden October 10 trip to Walter Reed medical center -- outside the usual annual exam -- spurred speculation about what prompted the check-up.

But in a memo released by the White House, physician Sean Barbabella said the advanced imaging was purely preventive, intended "to identify issues early, confirm overall health, and ensure he maintains long-term vitality."

"Overall, his cardiovascular system shows excellent health. His abdominal imaging is also perfectly normal

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