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US submarine sinks Iranian frigate off Sri Lanka as conflict widens

A United States Navy submarine has sunk an Iranian warship with a torpedo in the Indian Ocean, in what the US is calling its first torpedo sinking of an enemy ship since World War II, in a fast moving conflict between the US and Israel and Iran.

US Defence Secretary Pete Hegseth told a Pentagon briefing that the Iranian war vessel “thought it was safe in international waters” but was sunk by a torpedo in a “quiet death”.

Sri Lankan authorities said that search and rescue teams found at least 87 bodies and rescued 32 people after a distress call, and dozens more are believed to be missing from the estimated 180 strong crew.

Sri Lanka’s deputy foreign minister said that the war vessel sunk by the US submarine was its frigate IRIS Dena, and that the sinking happened outside Sri Lankan waters, south of the port city of Galle.

The Pentagon released footage that it claimed captured the moment of impact, showing a warship’s rear being torn apart by an explosion just before it started to sink.

Reuters stated that although the ship outline matched file imagery of the Dena, the timing of the footage could not be independently confirmed.

The attack also shifts the confrontation deeper into the Indo Pacific region.

According to Reuters, the Dena was on its way back to Iran after the vessel took part in a multilateral naval exercise in the Bay of Bengal, which was organized by India in late February.

Also Read: ARPANSA puts radiation emergency centre on alert as Iran conflict deepens

Hegseth described the attack as a “first in history since World War II,” but defence analysts said that the real difference is that it was an American submarine that torpedoed and sank an enemy vessel on the surface of the water, not that it was a first in history.

The attack also occurs as the conflict is escalating outside the Gulf region.

Associated Press reported that the strikes and counter strikes that took place before the latest attack were in areas around the Gulf of Oman and the Strait of Hormuz.

Through which a significant proportion of the world’s oil is shipped, causing the price of oil to climb as a result of the attacks.

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WA built AI score

WA built AI score spots hidden heart attack danger in routine CT scans

By identifying high risk plaque patterns that are difficult to measure with the unaided eye during routine CT calcium scoring a new artificial intelligence tool, could improve the way clinicians identify heart attack risk.

Coronary artery calcium (CAC) scoring, a CT based test that calculates the amount of calcified plaque in the coronary arteries, is the foundation of this work.

The most popular technique, the Agatston score has become a standard indicator of future cardiovascular risk, but it can be difficult to distinguish between stable calcification and more hazardous patterns.

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The new algorithm, which was developed by The University of Western Australia, the Harry Perkins Institute of Medical Research, Fiona Stanley Hospital and Perth med tech company Artya, is called the CAC.

Dispersion and density score, or CAC DAD and it takes into account the location of the plaque, as well as the spatial distribution of calcium while also providing a protective weighting for very dense lesions, which may be more stable.

In a study of 961 patients who had undergone cardiac CT for cardiovascular risk assessment or perioperative evaluation, major adverse cardiovascular events, such as nonfatal heart attack or cardiovascular death were tracked over a median of 30 days.

During which time, 74% of such events were detected by a high CAC DAD score, whereas only 57% of such events were detected by a commonly used high risk Agatston score.

In a UWA statement, first author Dr. Gavin Huangfu stated that “analysis of each individual plaque, which is not feasible for a human investigator.”

“Prevention is still the best course of action” stated senior author Professor Girish Dwivedi.

The score still requires prospective testing and validation in lower risk patients before it can be routinely implemented in clinics.

The development occurs at a time when coronary heart disease is still one of Australia’s top causes of death and medical professionals are still debating how to increase the use of CAC scoring locally, including concerns about funding and access.

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