Science Current Events | Science News | Brightsurf.com
 

Safer radiologic imaging of otolaryngologic disease in children

July 02, 2012

Alexandria, VA -- Advances in diagnostic imaging have benefited children with otolaryngologic disease, allowing shorter hospital stays, fewer invasive procedures, more targeted surgical procedures, and earlier and more precise diagnoses. However, despite improved technology, concerns about exposure of children to ionizing radiation have recently come to the forefront, according to a commentary in the July 2012 issue of Otolaryngology-Head and Neck Surgery.

Children have more radiosensitive body tissues than adults, and also tend to live longer, giving the effects of radiation exposure time to manifest. According to sources cited in the study, about seven million CT scans are performed on children every year in the United States alone, and medical source radiation exposure accounts for almost half our total radiation exposure in the United States.

This commentary discusses efforts "to reduce the exposure of children to radiation from diagnostic imaging, with focus on the responsibilities of the otolaryngologist in such efforts." The challenge lies, the authors write, in determining when CT scans are necessary and making this information widely available to otolaryngologists and others.

Several suggestions and resources are provided. The authors discuss the ALARA principle (As Low As Reasonably Achievable) and suggest that reducing radiation dosage is as simple as scanning only the indicated area. Two online resources exist: The American College of Radiology has provided Appropriateness Criteria (http://acr.org/ac) and the Alliance for Radiation Safety in Pediatric Imaging has created the site www.imagegently.org.

Other sources cited in the study provide three strategies to reduce radiation exposure from CT scans: 1) order fewer CT scans, 2) use another imaging modality that does not use ionizing radiation when possible, 3) reduce the radiation dose of each study.

The authors conclude that "safer imaging of children is a shared responsibility." It is important to order the right test at the right time, and to "consider the appropriateness of imaging, assuring that the best modality is being ordered, that the imaging actually influences management, and that the timing of imaging is ideal."

American Academy of Otolaryngology - Head and Neck Surgery


Related Radiation Exposure Current Events and Radiation Exposure News Articles


A better way to diagnose and manage neuroendocrine tumors
A recent study reported in the May issue of the Journal of Nuclear Medicine demonstrates that Ga-68 DOTATATE PET/CT scans are superior to In-111 pentetreotide scans, the current imaging standard in the United States for detecting neuroendocrine tumors (NETS), and could significantly impact treatment management.

Is there association between MC1R and melanoma risk after controlling for sun?
There is a well-described association between UV radiation exposure from the sun and the development of melanoma. The development of melanoma independent of sun exposure has only recently been described in mice.

Water bears do not have extensive foreign DNA, new study finds
Tardigrades, also known as moss piglets or water bears, are eight-legged microscopic animals that have long fascinated scientists for their ability to survive extremes of temperature, pressure, lack of oxygen, and even radiation exposure.

Improved imaging takes x-ray risks out of the picture
Fluoroscopy makes guiding a catheter through a blood vessel possible. However, fluoroscopy, a form of real-time moving X-ray, also exposes the patient to radiation. Now, a University of Missouri School of Medicine researcher has evaluated technology that may be used to replace fluoroscopy, eliminating the need for X-ray during cardiac ablation procedures.

Heavy smokers who quit more than 15 years ago still at high risk for lung cancer and should be screened
Expanding lung cancer screening to include people who quit smoking more than 15 years ago could detect more cases and further reduce associated mortality, according to a study by Mayo Clinic researchers published in the Journal of Thoracic Oncology.

Thyroid cancer patients report poor quality of life despite 'good' diagnosis
Thyroid cancer survivors report poor quality of life after diagnosis and treatment compared with other patients who are diagnosed with more lethal cancers, according to new research from the University of Chicago Medicine.

Reduced blood flow seen in brain after clinical recovery of acute concussion
Some athletes who experience sports-related concussions have reduced blood flow in parts of their brains even after clinical recovery, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

Gravity, who needs it?
What happens to your body in space? NASA's Human Research Program has been unfolding answers for over a decade.

Concussions in kids are detectable by blood test
Researchers at Orlando Health have developed a blood test that can detect even the most subtle signs of a concussion in children, correctly identifying the presence of traumatic brain injuries 94 percent of the time in a recent study.

Study provides more precise estimates of cancer risks associated with low level radiation
More precise estimates of cancer risks associated with prolonged, low level exposure to ionising radiation among nuclear industry workers are published by The BMJ today.
More Radiation Exposure Current Events and Radiation Exposure News Articles

Radiation - Exposure and its treatment: A modern handbook

Radiation - Exposure and its treatment: A modern handbook
by Butterfly Sciences


This book file, v.18, contains fixes for a few minor errata, typos and such. If you have bought this book, you can get the updates for free. However, Amazon has made it a bit difficult. First, you have set your device settings to accept updates. Click here and select the devices tab. www.amazon.com/gp/digital/fiona/manage After you have done that, see if you can get it. If not, complain to customer support. They assure me that they will get you your updates that way.

This book has been tested on Kindles, emulator for iPhone, and the free Calibre e-book reader available from calibre-ebook.com. Most any reading app should work, but some of them don't show the TOC properly. This book's TOC has multiple levels. If the reading app won't show it, try another one.

Radiation Survival: How to Prepare Now and Survive Radiation Exposure

Radiation Survival: How to Prepare Now and Survive Radiation Exposure
by Larry Poole (Author), Cheryl Poole (Author)


A flash of light, a blast of heat and wind, and part of the city is vaporized into a mushroom cloud that contaminates the atmosphere. We have seen the movie version of a nuclear attack. The reality of a nuclear terrorist attack is more survivable. Based on this book, you will be able to select the best shelter option immediately and with the personal radiation detector, know how long to remain. If you become contaminated you will learn how to decontaminate and neutralize the radiation. We have included the government rescue guidelines so that you will know if you can anticipate any assistance. It is likely after reading this book, you will know as much about potential neutralization and decontamination remedies as most disaster personnel. The following chapters are included: Health...

Medicines for Radiation Emergencies: Potassium Iodide (KI), Prussian Blue (Radiogardase), Filgrastim (Neupogen), DTPA (Diethylenetriaminepentaacetate) - Drugs for Radiation Exposure

Medicines for Radiation Emergencies: Potassium Iodide (KI), Prussian Blue (Radiogardase), Filgrastim (Neupogen), DTPA (Diethylenetriaminepentaacetate) - Drugs for Radiation Exposure
by Progressive Management


Four important medicines for treatment in radiation emergencies are fully covered in this authoritative collection of official documents: potassium iodide (KI), prussian blue, Filgrastim (Neupogen), and DTPA (Diethylenetriaminepentaacetate). There is detailed information from the FDA, CDC, NRC, and EPA on the use of these medicines.

Potassium iodide is a salt, similar to table salt. Its chemical symbol is KI. It is routinely added to table salt to make it "iodized." Potassium iodide, if taken in time and at the appropriate dosage, blocks the thyroid gland's uptake of radioactive iodine and thus could reduce the risk of thyroid cancers and other diseases that might otherwise be caused by exposure to radioactive iodine that could be dispersed in a severe nuclear accident....

Radiation Exposure Level and Effects

Radiation Exposure Level and Effects


This booklet examines different levels of radiation exposure and their effects. The radiation might be from a nuclear power plant disaster, or a dirty bomb, or fallout from a nuclear explosion. The different levels of radiation are categorized by the associated negative health effects, risk of cancer, and risk of death. This booklet also proposes a new method of classifying radiation exposure level (REL), based on the range of accumulated dosage. Each level of exposure is designated by a letter, a word or phrase, a color code, and a range of accumulated radiation exposure in sieverts.

REL = Radiation Exposure Level (A through F3)
A: Normal -- less than 15 mSv/year [green]
B: Elevated -- 15 to 50 mSv [green]
C: Caution -- 50 to 100 mSv [yellow]
D: Danger --...

Radiation Protection in Medical Radiography, 7e

Radiation Protection in Medical Radiography, 7e
by Mary Alice Statkiewicz Sherer AS RT(R) FASRT (Author), Paula J. Visconti PhD DABR (Author), E. Russell Ritenour PhD DABR FAAPM FACR (Author), Kelli Haynes MSRS RT(R) (Author)


A full-color resource, Radiation Protection in Medical Radiography, 7th Edition makes it easy to understand both basic and complex concepts in radiation protection, biology, and physics. Concise coverage promotes the safe use of ionizing radiation in all imaging modalities, including the effects of radiation on humans at the cellular and systemic levels, regulatory and advisory limits for human exposure to radiation, and the implementation of radiation safety practices for patients and personnel. This edition includes NEW content on the impact of radiation levels during the nuclear power plant crisis that followed the 2011 earthquake/tsunami in Japan. From an author team led by well-known radiation protection expert Mary Alice Statkiewicz Sherer, this text has consistently helped students...

Radiography In the Digital Age: Physics - Exposure - Radiation Biology (2nd Ed.)

Radiography In the Digital Age: Physics - Exposure - Radiation Biology (2nd Ed.)
by Quinn B. Carroll (Author)


Long overdue, this new work provides just the right focus and scope for the practice of radiography in this digital age, covering four entire courses in a typical radiography program. The entire emphasis of foundational physics has been adjusted in order to properly support the specific information on digital imaging that will follow. The paradigm shift in imaging terminology is reflected by the careful phrasing of concepts, accurate descriptions and clear illustrations throughout the book. There are 713 illustrations, including meticulous color line drawings, numerous photographs and stark radiographs. The two chapters on digital image processing alone include 60 beautifully executed illustrations. Foundational chapters on math and basic physics maintain a focus on energy physics....

Radiation: The Invisible Menace

Radiation: The Invisible Menace
by Choice PH


In our literature and in the movies an apocalyptic earth is often depicted with human survivors. However, this is fiction. The fact is, in a radioactive Earth there would be few Mammalian survivors, as we do not have the anatomy to persist in such an environment.

No one wants radiation, but the truth is radiation can be useful when used in a judicious manner, as in nuclear medicine. Radiation cannot be completely avoided. We are going to be exposed to radiation, unless we live in a “lead lined cave”, as radiation comes to us from the sky, as well as the very ground we live on.Then of course, we have our own man made radiation, such as x-rays that adds to what nature gives us on a daily basis.

This eBook highlights what is...

Radiography in the Digital Age: Physics - Exposure - Radiation Biology

Radiography in the Digital Age: Physics - Exposure - Radiation Biology
by Quinn B. Carroll (Author)




Seveneves

Seveneves
by Neal Stephenson (Author)


Five thousand years later after a catastropic event rendered the Earth a ticking time bomb, the progeny of a handful of outer space explorers--seven distinct races now three billion strong--embark on yet another audacious journey into the unknown ... to an alien world utterly transformed by cataclysm and time: Earth.

Radiation Exposure and Image Quality in X-Ray Diagnostic Radiology: Physical Principles and Clinical Applications

Radiation Exposure and Image Quality in X-Ray Diagnostic Radiology: Physical Principles and Clinical Applications
by Horst Aichinger (Author), Joachim Dierker (Author), Sigrid Joite-Barfuß (Author), Manfred Säbel (Author)


This completely updated second edition of Radiation Exposure and Image Quality in X-ray Diagnostic Radiology provides the reader with detailed guidance on the optimization of radiological imaging. The basic physical principles of diagnostic radiology are first presented in detail, and their application to clinical problems is then carefully explored. The final section is a supplement containing tables of data and graphical depictions of X-ray spectra, interaction coefficients, characteristics of X-ray beams, and other aspects relevant to patient dose calculations. In addition, a complementary CD-ROM contains a user-friendly Excel file database covering these aspects that can be used in the reader’s own programs. This book will be an invaluable aid to medical physicists when performing...

© 2016 BrightSurf.com