Test (medical/antiaging)
Doctors should stop routine prostate cancer screening of men over age 75 because there is more evidence of harm than benefit, a federal task force advised on a hotly debated topic.
The U.S. Preventive Services Task Force, which made the recommendation Monday, reported finding evidence that the benefits of treatment based on routine screening of this age group "are small to none." However, treatment often causes "moderate-to-substantial harms," including erectile dysfunction and bladder control and bowel problems, the task force said.
For people who dislike needles, medical tests that require a drop of saliva instead of a vial of blood will one day make a trip to a doctor or dentist much easier. But as scientists now construct the first of these saliva tests for early signs of cancer and other diseases, they continue to push the technological envelope in interesting ways.
The death of newsman Tim Russert last month from a massive heart attack raised interest in new technologies that may better identify people at risk for life-threatening cardiac events.
A test that one expert calls "the iPod of medical imaging" is emerging as an important tool for visualizing plaque buildup in patients with known coronary artery disease.
A new blood test found that people with high levels of a type of damaged cholesterol were much more likely to develop metabolic syndrome, putting them at higher risk of heart disease and diabetes, U.S. researchers said on Tuesday
1. Flexible sigmoidoscopy every 5 years, or
2. Colonoscopy every 10 years, or
3. Double contrast barium enema (DCBE) every 5 years, or
4. CT colonography (CTC) every 5 years
A combination of biomarkers detectable in urine more accurately detects prostate cancer than the standard PSA blood test and the newer PCA3 test, according to a report in the journal Cancer Research.
A blood test to detect breast cancer in its earliest stages could be made available in the UK next year.
A newly developed blood test can identify those at risk of Alzheimer's disease up to six years before symptoms would become apparent, researchers say.
It can take your pulse, check your body fat, time your jogs and tell you if you have bad breath. It even assesses stress levels and inspires you with a pep talk. Meet your new personal trainer: your cell phone.
What if your doctor could swipe a wand over your neck and reveal whether you have hidden heart disease?
The amount of "good cholesterol" in the blood remains an important marker for heart disease regardless of how much "bad cholesterol" is lowered, researchers said on Wednesday.
The study, published in The Lancet medical journal, found a simple visual screening test to look for the early signs of cervical cancer reduced the numbers of cases by a quarter.
The testing device, which contains 36 spots impregnated with chemically sensitive compounds, works by detecting patterns of volatile organic compounds in exhaled breath. These spots change colors when exposed to particular chemicals.
SPECT provides three-dimensional images of blood flow to the heart muscle, while cardiac CT angiography provides detailed images of coronary arteries.
"By combining the physiological (or functional) images of the blood flow to the heart muscle at stress and at rest with the high-resolution anatomical depiction of coronary arteries and their blockages, we can determine the diagnosis of coronary artery disease more accurately," Piotr Slomka, a research scientist with the Artificial Intelligence in Medicine Program at Cedars-Sinai Medical Center in Los Angeles, said in a prepared statement.
“这是世界最好的有关结合现代医学和古老的东方医学智慧养生之道。 ”