Medical Dialogues
  • Dermatology
Login Register
This site is intended for healthcare professionals only
Login Register
  • Medical Jobs
  • Medical Matrimony
  • MD Brand Connect
  • MDTV
    • Anesthesia
    • CTVS
    • Cardiology
    • Critical Care
    • Dentistry
    • Dermatology
    • Diabetes and Endocrinology
    • Diet and nutrition
    • ENT
    • Gastroenterology
    • Health Dialogues
    • Health News today
    • Health Shorts
    • Health Updates
    • Health video of the day
    • Laboratory Medicine
    • Latest Videos
    • Latest Webinars
    • MD shorts
    • Medical News Today
    • Medical Updates
    • Medical Video of the day
    • Medicine
    • Medico Legal Update
    • Nephrology
    • Neurology and Neurosurgery
    • Obstetrics and Gynaecology
    • Oncology
    • Ophthalmology
    • Orthopaedics
    • Pediatrics & Neonatology
    • Psychiatry
    • Pulmonology
    • Radiology
    • Surgery
    • Top Videos
    • Urology
Medical Dialogues
  • Medical News
      • Anesthesiology
      • Cardiology and CTVS
      • Critical Care
      • Dentistry
      • Dermatology
      • Diabetes and Endocrinology
      • ENT
      • Gastroenterology
      • Medicine
      • Nephrology
      • Neurology
      • Obstretics-Gynaecology
      • Oncology
      • Ophthalmology
      • Orthopaedics
      • Pediatrics-Neonatology
      • Psychiatry
      • Pulmonology
      • Radiology
      • Surgery
      • Urology
      • Laboratory Medicine
      • Diet
      • Nursing
      • Paramedical
      • Physiotherapy
  • Health news
      • Doctor News
      • Government Policies
      • Hospital & Diagnostics
      • International Health News
      • MCI News
      • Medical Organization News
      • Medico Legal News
      • NBE News
      • NMC News
  • Medical Guidelines
      • Anesthesiology
      • Cardiology and CTVS
      • Critical Care
      • Dentistry
      • Dermatology
      • Diabetes and Endocrinology
      • ENT
      • Gastroenterology
      • Medicine
      • Nephrology
      • Neurology
      • Obstretics-Gynaecology
      • Oncology
      • Ophthalmology
      • Orthopaedics
      • Pediatrics-Neonatology
      • Psychiatry
      • Pulmonology
      • Radiology
      • Surgery
      • Urology
      • Laboratory Medicine
      • Diet
      • Nursing
      • Paramedical
      • Physiotherapy
  • AYUSH
    • Ayurveda
    • Homeopathy
    • Siddha
    • Unani
    • Yoga
  • State News
      • Andaman and Nicobar Islands
      • Andhra Pradesh
      • Arunachal Pradesh
      • Assam
      • Bihar
      • Chandigarh
      • Chattisgarh
      • Dadra and Nagar Haveli
      • Daman and Diu
      • Delhi
      • Goa
      • Gujarat
      • Haryana
      • Himachal Pradesh
      • Jammu & Kashmir
      • Jharkhand
      • Karnataka
      • Kerala
      • Ladakh
      • Lakshadweep
      • Madhya Pradesh
      • Maharashtra
      • Manipur
      • Meghalaya
      • Mizoram
      • Nagaland
      • Odisha
      • Puducherry
      • Punjab
      • Rajasthan
      • Sikkim
      • Tamil Nadu
      • Telangana
      • Tripura
      • Uttar Pradesh
      • Uttrakhand
      • West Bengal
  • Medical Education
      • Ayush Education News
      • Dentistry Education News
      • Medical Admission News
      • Medical Colleges News
      • Medical Courses News
      • Medical Universities News
      • Nursing education News
      • Paramedical Education News
      • Study Aborad
  • Industry
    • Health Investment News
    • Health Startup News
    • Medical Devices News
    • Pharma News
    • Pharmacy Education News
  • MDTV
      • Anesthesia
      • CTVS
      • Cardiology
      • Critical Care
      • Dentistry
      • Dermatology
      • Diabetes and Endocrinology
      • Diet and nutrition
      • ENT
      • Gastroenterology
      • Health Dialogues
      • Health News today
      • Health Shorts
      • Health Updates
      • Health video of the day
      • Laboratory Medicine
      • Latest Videos
      • Latest Webinars
      • MD shorts
      • Medical News Today
      • Medical Updates
      • Medical Video of the day
      • Medicine
      • Medico Legal Update
      • Nephrology
      • Neurology and Neurosurgery
      • Obstetrics and Gynaecology
      • Oncology
      • Ophthalmology
      • Orthopaedics
      • Pediatrics & Neonatology
      • Psychiatry
      • Pulmonology
      • Radiology
      • Surgery
      • Top Videos
      • Urology
This site is intended for healthcare professionals only
LoginRegister
Medical Dialogues
LoginRegister
  • Home
  • Medical news
    • Anesthesiology
    • Cardiology and CTVS
    • Critical Care
    • Dentistry
    • Dermatology
    • Diabetes and Endocrinology
    • ENT
    • Gastroenterology
    • Medicine
    • Nephrology
    • Neurology
    • Obstretics-Gynaecology
    • Oncology
    • Ophthalmology
    • Orthopaedics
    • Pediatrics-Neonatology
    • Psychiatry
    • Pulmonology
    • Radiology
    • Surgery
    • Urology
    • Laboratory Medicine
    • Diet
    • Nursing
    • Paramedical
    • Physiotherapy
  • Health news
    • Doctor News
    • Government Policies
    • Hospital & Diagnostics
    • International Health News
    • MCI News
    • Medical Organization News
    • Medico Legal News
    • NBE News
    • NMC News
  • Medical Guidelines
    • Anesthesiology
    • Cardiology and CTVS
    • Critical Care
    • Dentistry
    • Dermatology
    • Diabetes and Endocrinology
    • ENT
    • Gastroenterology
    • Medicine
    • Nephrology
    • Neurology
    • Obstretics-Gynaecology
    • Oncology
    • Ophthalmology
    • Orthopaedics
    • Pediatrics-Neonatology
    • Psychiatry
    • Pulmonology
    • Radiology
    • Surgery
    • Urology
    • Laboratory Medicine
    • Diet
    • Nursing
    • Paramedical
    • Physiotherapy
  • Medical Education
    • Ayush Education News
    • Dentistry Education News
    • Medical Admission News
    • Medical Colleges News
    • Medical Courses News
    • Medical Universities News
    • Nursing education News
    • Paramedical Education News
    • Study Aborad
  • Industry
    • Health Investment News
    • Health Startup News
    • Medical Devices News
    • Pharma News
      • CDSCO (Central Drugs Standard Control Organisation) News
    • Pharmacy Education News
  • Case of the Day
  • Editorial
  • Home
  • News
  • Health News
  • Study questions the...

Study questions the premise of X-rays and CT scans causing cancer

Written by savita thakur thakur Published On 2016-02-04T16:30:28+05:30  |  Updated On 4 Feb 2016 11:00 AM GMT
  • Facebook
  • Twitter
  • Whatsapp
  • Telegram
  • Linkedin
  • Email
  • koo
  • Facebook
  • Twitter
  • Whatsapp
  • Telegram
  • Linkedin
  • Email
  • koo
  • Facebook
  • Twitter
  • Whatsapp
  • Telegram
  • Linkedin
  • Email
  • koo

The widespread belief that radiation from X rays, CT scans and other medical imaging can cause cancer is based on an unproven, decades-old theoretical model, according to a study published in theĀ American Journal of Clinical Oncology.The model, known as linear no-threshold (LNT), is used to estimate cancer risks from low-dose radiation such as medical imaging. But risk estimates based on...

The widespread belief that radiation from X rays, CT scans and other medical imaging can cause cancer is based on an unproven, decades-old theoretical model, according to a study published in theĀ American Journal of Clinical Oncology.

The model, known as linear no-threshold (LNT), is used to estimate cancer risks from low-dose radiation such as medical imaging. But risk estimates based on this model "are only theoretical and, as yet, have never been conclusively demonstrated by empirical evidence," corresponding author James Welsh, MD and colleagues write. Use of the LNT model drives unfounded fears and "excessive expenditures on putative but unneeded and wasteful safety measures."

Dr. Welsh is a Loyola University Medical Center radiation oncologist and a professor in the Department of Radiation Oncology of Loyola University Chicago Stritch School of Medicine.

The LNT model dissuades many physicians from using appropriate imaging techniques and "discourages many in the public from getting proper and needed imaging, all in the name of avoiding any radiation exposure," Dr. Welsh and colleagues write.

The authors reexamined the original studies, dating back more than 70 years, which led to adoption of the LNT model. This reappraisal found that the data reported in those studies do not actually support the LNT model.

In the LNT model, the well-established cancer-causing effects of high doses of radiation are extended downward in a straight line to very low doses. The LNT model assumes there is no safe dose of radiation, no matter how small. However, the human body has evolved the ability to repair damage from low-dose radiation that naturally occurs in the environment.

The LNT model dates to studies, conducted in the 1940s, of fruit flies exposed to various doses of radiation. The scientists who conducted those studies concluded there is no safe level of radiation, thus giving rise to the LNT model that is used to this day. But their conclusion was unwarranted because their experiments had not been done at truly low doses. A study exposing fruit flies to low-dose radiation wasn't conducted until 2009, and this study did not support the LNT model.

Studies of atomic bomb survivors and other epidemiological studies of human populations have never conclusively demonstrated that low-dose radiation exposure can cause cancer.

Any claim that low-dose radiation from medical imaging procedures is known to cause cancer "should be vigorously challenged, because it serves to alarm and perhaps harm, rather than educate," Dr. Welsh and colleagues write.

The authors conclude the LNT model "should finally and decisively be abandoned."

The study is titled "The birth of the illegitimate linear no-threshold model - an invalid paradigm for estimating risk following low-dose radiation exposure."

In addition to Dr. Welsh, co-authors are Jeffry Siegel, PhD, president and CEO of Nuclear Physics Enterprises (first author); Charles Pennington of NAC International and Bill Sacks, MD, PhD, emeritus medical officer in the FDA Center for Devices and Radiological Health.
American Journal of Clinical Oncology cancer cancer causes CT scans oncology USFDA X rays 
savita thakur thakur
savita thakur thakur
    Show Full Article
    Next Story
    Similar Posts
    NO DATA FOUND

    Editorial

    Analyzing the Role of Levofloxacin in Urinary Tract Infections-A review

    Analyzing the Role of Levofloxacin in Urinary Tract Infections-A review

    Management of Allergic Rhinitis during COVID-19 Pandemic

    Management of Allergic Rhinitis during COVID-19 Pandemic

    Role of Probiotics in recurrent bacterial vaginosis: A review

    Role of Probiotics in recurrent bacterial vaginosis: A review

    Decoding the correct diagnosis of Allergic Rhinitis in clinic practice - Dr Tushar Kanti Ghosh

    Decoding the correct diagnosis of Allergic Rhinitis in clinic practice - Dr Tushar Kanti Ghosh

    Bronchial Asthma - Early Indicators for Diagnosis and Its Management in Indian Practice Settings

    Bronchial Asthma - Early Indicators for Diagnosis and Its Management in Indian Practice Settings

    View All

    Journal Club Today

    Emergency care , hospitalizations higher among cannabis users

    Emergency care , hospitalizations higher among cannabis users

    View All

    Health News Today

    Health Bulletin 29/June/2022

    Health Bulletin 29/June/2022

    View All
    Ā© 2022 All Rights Reserved.
    Powered By: Hocalwire
    We use cookies for analytics, advertising and to improve our site. You agree to our use of cookies by continuing to use our site. To know more, see our Cookie Policy and Cookie Settings.Ok
    X
    X