Ultra-Low-Dose CT Scans May Help Early Detection Of Pneumonia

Updated Mar 19, 2025 | 09:20 AM IST

SummaryCT scans are the gold standard for detecting pneumonia but there are concerns regarding the risk posed by repeated exposure to radiation.
Ultra-Low-Dose CT Scans May Detect Pneumonia in At-Risk Patients

Credit: Canva

Low-dose CT chest scans could help detect pneumonia in at-risk patients while exposing them to only small amounts of radiation, a new study has found. The research, published in Radiology: Cardiothoracic Imaging, shows that ultra-low-dose scans can effectively detect pneumonia in patients with compromised immune systems, enabling doctors to treat the infection before it becomes life-threatening. According to the researchers, these scans expose patients to just 2% of the radiation dose used in a standard CT scan.

"This study paves the way for safer, AI-driven imaging that reduces radiation exposure while preserving diagnostic accuracy,” lead researcher Dr Maximiliano Klug, a radiologist with the Sheba Medical Center in Ramat Gan, Israel, said in a news release. He added that CT scans are the gold standard for detecting pneumonia but there are concerns regarding the risk posed by repeated exposure to radiation. There is a solution- ultra-low-dose CT scan. However, the problem is that these scans can be grainy and hard to read, researchers said.

Study Gives Solution To This

To overcome that, Klug's team developed an AI program that could help "de-noise" low-dose scans, making them sharper and easier to read. Between September 2020 and December 2022, 54 patients with compromised immune systems who had fevers underwent a pair of chest CT scans -- a normal dose scan and an ultra-low-dose scan. The AI program cleaned up the low-dose scan, and then both sets of images were given to a pair of radiologists for assessment. Radiologists had 100% accuracy in detecting pneumonia and other lung problems with the AI-cleaned low-dose scans, but 91% to 98% accuracy in examining the scans that hadn’t been improved through AI, results show.

"This pilot study identified infection with a fraction of the radiation dose," Klug said. "This approach could drive larger studies and ultimately reshape clinical guidelines, making denoised ultra-low dose CT the new standard for young immunocompromised patients.

How Can You Detect Pneumonia?

Pneumonia is a lung infection that causes the air sacs in the lungs to fill with fluid or pus and can be caused by bacteria, viruses, or fungi. The symptoms can range from milk to severe, which includes:

Coughing with or without cough

Fever

Chills

Trouble breathing

Chest pain, especially when breathing deeply or coughing

Sweating or chills

Rapid heart rate

Loss of appetite

Bluish skin, lips, and nails

Confusion.

How to detect Pneumonia in coughing newborns and toddlers?

Pneumonia can severely affect newborns and young children as their lungs are comparatively more sensitive. As per Dr Goyal, young children can cough for various reasons including seasonal infections and tonsillitis, which is very common in this age group. But if they look visibly irritable and have poor sleep patterns, then parents must reach out to an expert. "I am not saying that parents must visit a hospital but any local paediatrician would be able to detect pneumonia in your kid.

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Report Claims Mojtaba Khamenei ‘Incapacitated’: What Does This Mean Medically

Updated Apr 7, 2026 | 01:56 PM IST

SummaryUS President Donald Trump has claimed that Mojtaba Khamenei could be dead or seriously injured, saying there has been no public confirmation of his condition, Financial Times reported.
Report Claims Mojtaba Khamenei ‘Incapacitated’: What Does This Mean Medically

Credit: iStock/X

Mojtaba Khamenei, the newly appointed supreme leader of Iran, has been ‘incapacitated’, according to a media report.

The UK-based The Times reported that Mojtaba Khamenei is critically ill and is unable to govern and has thus been placed under medical care in the religious city of Qom.

The report cited a diplomatic memo, based on US and Israeli intelligence, which indicates that Mojtaba Khamenei is unconscious and in a “severe” condition.

Meanwhile, Iranian authorities have acknowledged that Khamenei was wounded in the same airstrike that killed his father, former supreme leader Ali Khamenei, along with close family members on the opening day of the war. Since then, he has not appeared publicly.

Earlier, US President Donald Trump also reiterated claims that Mojtaba Khamenei could be dead or seriously injured, saying there has been no public confirmation of his condition, Financial Times reported.

What Does The Term ‘Incapacitated’ Mean Medically?

The Journal of Family Practice explains that being incapacitated “is the clinical state in which a patient is unable to participate in a meaningful way”. The condition can be both physical or mental.

It includes:

  • Loss of physical mobility: unable to move, walk, or perform basic tasks
  • Cognitive Decline
  • Severe illness or injury
  • Coma,
  • Advanced dementia,
  • Severe mental illness,
  • Delirium.
The incapacitated individual cannot perform daily activities, like eating or taking medication, on his or her own, without assistance.

Who Is Mojtaba Khamenei

The 56-year-old Mojtaba Khamenei is the son of former supreme leader Ayatollah Ali Khamenei, who was killed in a US-Israeli strike on February 28 -- the first day of the ongoing war.

He was elevated to the position of his father on March 8 after Iran’s Assembly of Experts—the clerical body responsible for appointing the supreme leader—formally selected him as successor amid wartime conditions.

Since his appointment, Mojtaba has not appeared at any funeral for senior commanders killed in the strikes, issued no video messages, and released no photographs.

However, Israeli media i24NEWS quoted sources who said Mojtaba Khamenei does not control Iran and "most likely, the Revolutionary Guards control the state”.

A viral video of the new Supreme Leader shows him walking into a war room and analyzing a map of Israel’s nuclear power plant in Dimona has been debunked as AI-generated.

Is Incapacitation A Serious Health Condition?

An individual who is incapacitated requires urgent care, as the person is at significant risk of

  • organ failure,
  • brain damage,
  • infections,
  • long-term disability even after recovery.
Notable Examples of Incapacitated Leaders include:

    Former US President Woodrow Wilson

  • Franklin D. Roosevelt (US),
  • Winston Churchill (UK),
  • Joseph Stalin (USSR).
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    Measles Outbreak In Bangladesh Kills 98 Children: Report

    Updated Apr 6, 2026 | 06:56 PM IST

    SummaryAccording to the latest data from the country’s Ministry of Health, the number of children aged six months to five years old with suspected measles symptoms has soared to 6,476. ​The outbreak has prompted the government to launch an emergency vaccination drive in 18 high-risk districts.
    Measles Outbreak in Bangladesh Kills 98 Children: Report

    Credit: Canva

    The vaccine-preventable measles, a deadly infectious disease, has claimed the lives of 98 children in Bangladesh, in the country’s one of the worst outbreaks, media reports said.

    According to the latest data from the country’s Ministry of Health, the number of children aged six months to five years old with suspected measles symptoms has soared to 6,476, AFP News Agency reported

    “Compared with past years, the number of affected children is higher, and the death toll is higher too,” Halimur Rashid, director at Communicable Disease Control, was quoted as saying.

    The largest number of suspected cases on record was in 2005 at 25,934, according to World Health Organization (WHO) data. That number had significantly declined in succeeding years until this year.

    Measles Outbreak: Emergency Vaccination Drive

    Official data show that in 2026, more than 2,300 children were admitted to the hospital with suspected measles.

    The outbreak has also prompted the government to roll out a vaccination program for younger children in a bid to halt the outbreak. The emergency vaccination drive will be launched in 18 high-risk districts, and will also be expanded from May 3 to cover the entire country.

    Directorate General of Health Services (DGHS) said 10 of the total 94 measles-related deaths occurred in 24 hours ending at 8 am Sunday, even as the number of suspected measles cases detected grew to 5,792 during the 19 days, 974 of them since Saturday.

    "The highly infectious disease has seen a sharp rise this year, particularly since March," a DGHS statement said, attributing the phenomenon to the vaccination gap last year, PTI reported.

    The officials noted that the disease is spreading rapidly and has affected 56 out of 64 administrative districts.

    Health Minister Sardar Shakhawat Hossain Bakul said the emergency vaccination drive would cover the "worst affected areas" before being expanded throughout Bangladesh.

    What Is Measles?

    Measles is a highly contagious virus that spreads through direct contact or through the air when an infected person coughs or sneezes.

    Symptoms typically appear seven to 14 days after exposure and may include:

    • high fever,
    • cough,
    • runny nose,
    • red eyes,
    • rashes across the body.

    Measles And Vaccination

    Measles is a vaccine-preventable disease that can cause devastating complications, including blindness, pneumonia, encephalitis, and long-term immune dysfunction.

    The reports of deaths from Bangladesh indicate the presence of a significant 'immunity gap,” allowing the virus to take hold.

    How Does Measles Spread

    Measles is a highly contagious viral disease that spreads rapidly through respiratory droplets when an infected person coughs or sneezes.

    Crowded living conditions, poor ventilation, and low immunity levels increase the risk of transmission.

    In addition to incomplete or missed vaccination, lack of awareness, and malnutrition (especially vitamin A deficiency) contribute to outbreaks.

    How To Stay Safe

    To safeguard against measles, individuals should:

    • Ensure timely vaccination, especially for children.
    • Maintaining good hygiene, such as frequent handwashing and covering the mouth while coughing or sneezing
    • Avoiding close contact with infected individuals
    • Eensure proper nutrition to boost immunity
    • Public awareness and community health programs also play a crucial role.

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    Chandigarh Doctor Alleges Hospital Forcibly Keeping All Patients In ICU

    Updated Apr 6, 2026 | 01:35 PM IST

    SummaryIn January 2024, India launched guidelines for hospitals on ICU admissions and directed that hospitals cannot admit critically ill patients to the ICU without the consent of the patient and family. According to the latest guidelines, patients who are critically ill should not be admitted to an ICU if they do not give their consent.
    Chandigarh Doctor Alleges Hospital Forcibly Keeping All Patients In ICU

    Credit: Canva/Instagram

    A young Internal Medicine doctor from Chandigarh has highlighted shocking malpractices followed by a well-known private hospital.

    In a widely shared video posted on social media platform Instagram, Dr Prabhleen Kaur alleged that all patients arriving at the hospital in the city are being forcibly kept in Intensive Care Units (ICUs) even when it is not required.

    The doctor had joined the hospital, as it was paying well and was near her clinic. However, seeing the blatant scam, she resigned in just one day.

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    “I joined a very reputed hospital. I thought I would work there in the mornings and run OPD at my own clinic in the evenings. They were paying really well, no doubt about that,” the doctor said in the video.

    The doctor alleged that the hospital “just needed a physician for the show”, while the entire handling of patients was being done by the owner, a gynecologist.

    “But on my very first day, I realised that they only needed a physician in name. The hospital owner, who was a gynaecologist and not a physician, was managing all the patients herself. That means she would decide every patient should be admitted, and she would also decide that every admitted patient should be kept in the ICU – and kept there for as many days as possible,” Kaur said.

    She further claimed that the goal at the said hospital was to make the patients remain admitted in the ICU for as long as possible. Kaur added she was deeply disturbed seeing this and refused to be part of a system that “harms patients for money.”

    “It would have been my name, but their wrongdoing. So I resigned, because I cannot allow someone to use me as a front for unethical practices,” she said.

    The doctor did not mention the name of the hospital. And HealthandMe could not independently verify the details and the authenticity of the post.

    However, the incident reignites concerns over accountability, patient safety, and standards of care in the country.

    The video went viral and the netizens found it concerning, and some also pointed out that such issues are common with many hospitals across the country.

    "Unfortunately, most doctors are doing this unethical practice these days,” a user said.

    “No surprise— the moment you enter a hospital, the first question is about insurance coverage. Feels like treatment comes second and billing comes first,” added another.

    Some also lauded the doctor for resigning and sounding the alarm.

    “Salute to your integrity. Rest of the Indians are just after making money,” said a user, while another noted: “Respect to this doctor for choosing her conscience over money".

    Also read: NASA’s Artemis II Mission To Test Human Health in Deep Space

    Other Such Incidents

    This is not the first such incident of hospital malpractice in the country.

    Days earlier, a doctor from Assam called out private hospitals for overcharging patients with inflated medicine prices and unnecessary lab tests.

    Dr Priyam Bordoloi said that corporate hospital chains rely on “predatory” practices and become a “financial sinkhole” for patients.

    Earlier in January this year, a viral video with allegations of gross medical negligence and institutional apathy at Dhubri Medical College and Hospital (DMCH) sparked public outrage.

    The video showed a family accusing hospital staff of failing to provide basic care, delaying critical dialysis treatment, and obstructing an emergency transfer.

    The incident involved a 74-year-old Fulchand Chowdhury, whose condition reportedly worsened due to lapses in ICU monitoring, sanitation, and patient safety.

    The family claimed they were forced to care for him themselves and faced resistance when seeking transfer to a private facility.

    Also read: Bob Harris: BBC Radio 2 Host Hospitalized For Prostate Cancer Treatment

    Who Should Be Kept In The ICU?

    In January 2024, India launched guidelines for hospitals on ICU admissions and directed that hospitals cannot admit critically ill patients to the ICU without the consent of the patient and family.

    According to the latest guidelines, patients who are critically ill should not be admitted to an ICU if they do not give their consent.

    "Critically ill patients should not be admitted to the ICU; if the patient or next-of-kin informed refusal to be admitted in ICU."

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