Why we can’t see cancer growth in a tumour on a CT scan
We’ve all seen the picture of a tumours on the CT scan, and the image has been used to illustrate that there is nothing wrong with that scan.
But a new study suggests that there may be some truth to that.
In a new paper published in the journal Science, researchers looked at data from more than 2,000 people who had undergone CT scans to try to figure out what could cause a tumor to grow.
They found that the more invasive the scan was, the less likely it was to be positive for cancer growth.
“We knew from previous studies that CT scans were not sensitive enough for detection of cancers on the surface, but we hadn’t been able to find out if that was true in people,” says Dr. Michael Kuehne, a cancer researcher at Memorial Sloan Kettering Cancer Center in New York City and lead author of the study.
The team also looked at whether CT scans had a similar effect on the growth of the cancer cells themselves.
Their findings were quite surprising: While the CT scans of people with less invasive scans tended to be more positive for growth than those with more invasive scans, there was no difference in the overall response to the scan for the two groups.
What’s more, the researchers did not find that people with invasive scans who underwent CT scans with a CT-scanning device were more likely to have the growth detected on the scan.
That may be because, unlike other types of scans, CT scans do not take a CT snapshot of the tumor.
That means they don’t capture the growth inside the cancer and then send the results to a lab to be measured by a computer.
That means, when researchers looked specifically at CT-growth rates, the CT-spies did not get any advantage from the imaging method over the scans that did not use a CT scanning device.
This study may help shed light on what causes cancer, says Dr Adam Wills, a professor of medicine at the University of Texas MD Anderson Cancer Center and one of the lead authors of the paper.
Wills says he’s not aware of any study to date that has looked at CT scans in relation to the growth rates of cancer cells.
Other experts say the results of the research could be useful in other areas of cancer treatment, such as in detecting early stage cancer.
Even though the findings are preliminary, they point to a way to look at CT imaging without the need for invasive surgery.
There’s also potential to improve the accuracy of CT scans.
The scan will become less invasive over time, which could lead to more accurate and reliable CT scans, according to the researchers.
And there are also other applications.
For example, it could be used to help detect diseases that may be difficult to diagnose or detect early, such in children with a rare form of brain cancer called Duchenne muscular dystrophy.
Dr Kueehne says it could also be used in more general research, including for diagnosing diseases such as the immune system and other immune system disorders.
He says there are many other areas where the scans could be helpful.
While there is some good news to be found in this study, there is still some work to do, he says.
“It’s not going to be definitive,” Kueahne says.
More stories about: cancer,cancer-related,lifestyle,health,health-care,longevity,healthcare-insurance source Medical Daily title How to live longer: Study finds CT scans don’t help prevent cancer source The Associated Press title Why CT scans may not be as useful as we thought article It’s been a long time coming, but a new analysis of research conducted in the US shows that CT-scanners don’t work as well as we might have thought.
As a result, many of us are taking on unnecessary risks, such like getting a CT scans before a doctor diagnoses cancer or going to a hospital when a condition such as diabetes or high blood pressure is found, according the study by researchers from Johns Hopkins University and the University at Buffalo.
One reason for the disparity is that CT scanners are more sensitive than other types, which can make them more likely for mistakes to occur, researchers found.
For example, researchers had to make more than 100,000 CT scans because they couldn’t get a machine to work at 100, to get the scan rate they were looking for.
Another factor is the way we use the scanner to scan our body: Many people who get a CT are using the scanner for their scans at home.
It’s also unclear whether CT-related cancers would be cured with CT scans or if they would get worse with radiation therapy.
But one thing is for certain: The researchers say that CT imaging is not going away any time soon.
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