Tomography News and Research

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Oak Ridge technology used to understand semiconductor defects helps people at risk of becoming blind

Millions of people at risk of becoming blind could one day be helped by an Oak Ridge National Laboratory technology originally intended to understand semiconductor defects.

10 Feb 2005

New way to assess the potentially damaging effects of prenatal drug exposure

Scientists have demonstrated a new way to assess the potentially damaging effects of prenatal drug exposure--a technique that could also be used to monitor a fetus's response to therapeutic drugs--using sophisticated, noninvasive medical imaging tools.

7 Feb 2005

Nicotine may hold promise in the early diagnosis of Alzheimer's disease

The chemical nicotine--a main ingredient in tobacco--may hold promise in the early diagnosis of Alzheimer's disease, give insight into therapeutic interventions for nicotine addiction and possibly complement the diagnosis of certain forms of lung cancer, according to a study in the January issue of the Society of Nuclear Medicine's Journal of Nuclear Medicine.

31 Jan 2005

Whole-body computed tomography (CT) is not a cost-effective screening method

The use of whole-body CT as a screening tool for cancer and other diseases is the focus of an ongoing debate. Proponents of whole-body CT emphasize the potential benefit of early detection of disease, but others caution that the costs, false-positive findings and unnecessary radiation might render the procedure more harmful than beneficial.

25 Jan 2005

Blood clots in the lungs could be prevented with computed tomography (CT) scans of the legs

Researchers found that indirect CT venography (CTV) could identify blood clots in the legs that have the potential to break free, travel to the lung and block an artery--a life-threatening condition known as pulmonary embolism.

25 Jan 2005

Role of ethnicity in nonalcoholic fatty liver disease

The first study to examine nonalcoholic fatty liver disease (NAFLD) among different ethnic and racial groups in the United States finds that Hispanics may be at a higher risk of developing the condition. The study is published in Hepatology, the official journal of the American Association for the Study of Liver Diseases (AASLD). Published by John Wiley & Sons, Inc., Hepatology is available online via Wiley InterScience.

19 Jan 2005

Study identifies potentially valuable applications for new drug Nifrolidine

Along with aiding efforts to study addicted smokers, a new drug that attaches only to areas of the brain that have been implicated in nicotine addiction may help studies of people battling other disorders such as Alzheimer’s disease and schizophrenia.

12 Jan 2005

Honeycomb-like polymer implant helps re-build the faces of children

British and Russian surgeons are using a revolutionary honeycomb-like polymer implant to help re-build the faces of children injured in accidents or born with serious defects. The material bonds with bone without causing adverse reactions.

12 Jan 2005

Combined positron emission tomography and computerized tomography can help diagnose hidden recurrent cancer

Combined positron emission tomography and computerized tomography (PET/CT) can help diagnose occult (hidden) recurrent cancer, possibly a cancer patient's greatest post-treatment fear, report a team of Israeli physicians in the December issue of the Society of Nuclear Medicine's "Journal of Nuclear Medicine."

13 Dec 2004

Neurobiologists distinguish in unprecedented detail the patterns of brain activity

Using hairlike microelectrodes and computer analysis, neurobiologists at Duke University Medical Center have demonstrated that they can see the detailed instant-to-instant electrical "brainscape" of neural activity across a living brain.

8 Dec 2004

MRI reveals similarities between the human and chimpanzee brain

New MRI-based studies present more evidence that the brains of chimpanzees are human-like in terms of the relationships among brain asymmetry, handedness and language, according to research undertaken at the Yerkes National Primate Research Center in Atlanta.

6 Dec 2004

Researchers can now predict the likelihood of developing lung cancer

For the first time, researchers can predict the lung cancer risk for social smokers as well as habitual smokers.

29 Nov 2004

Virtual colonoscopy raises issues for further study

The American Society for Gastrointestinal Endoscopy (ASGE) has reacted with caution to claims of the benefits of computed tomography (CT) colonography, also referred to as virtual colonoscopy, compared to standard colonoscopy.

29 Nov 2004

Early results shed light on lung cancer screening advance

One in three smokers or former smokers screened for lung cancer at a baseline and one year follow-up visit using a recent advance in computed tomography tested positive according to a new study. Of those, 12 percent had lung biopsies, and 7 percent were diagnosed with lung cancer.

23 Nov 2004

Not all congestion-producing chronic rhinosinusitis infections are the same

Rather, this problem that afflicts some 30 million Americans annually has four severity classifications that could help guide treatment today and help find better treatments in the future, says the lead author on the study published in the November issue of The Laryngoscope.

18 Nov 2004

Silicone facial implants provide HAART patients with a healthier appearance

Highly active antiretroviral therapy (HAART) for the treatment of HIV/AIDS is the name given to treatment regimens recommended by leading HIV experts to aggressively suppress viral replication and progress of HIV disease. These treatment regimens have been shown to reduce the amount of virus so that it becomes undetectable in a patient's blood.

16 Nov 2004

UT Southwestern Moncrief Cancer Center treats patients with TomoTherapy

UT Southwestern Moncrief Cancer Center this week began treating patients with a TomoTherapy system utilizing image-guided radiation therapy (IGRT). Moncrief is the first cancer center in Texas to offer radiation treatment delivered by the TomoTherapy Hi-Art System.

10 Nov 2004

Reproductive hormones have effects on all of these stages of brain growth and development

Scientists are now uncovering increasing evidence that the brain not only responds to hormones produced by the reproductive system, but that these hormones-the so-called "female hormones," estrogen and progestin, and the "male" androgens, such as testosterone-play an important role in the development of differences between male and female brains.

2 Nov 2004

New data supporting the use of Renagel in patients who are new to hemodialysis

Genzyme Corporation announced that investigators tomorrow will unveil new preliminary data supporting the use of Renagel (sevelamer hydrochloride) in patients who are new to hemodialysis.

29 Oct 2004