Type of lung cancer screening used to detect disease may impact 5-year survival rates

May 04, 2009

Dr. Hisao Asamura and his team of researchers at The National Cancer Center Hospital in Tokyo, Japan examined the records of 2,281 patients who underwent lung cancer resection surgery between 2000 and 2006. The study was published in the May issue of the Journal of Thoracic Oncology, the official journal of the International Association for the Study of Lung Cancer. Dr. Asamura and his team found that after classifying patients based on the technique used to diagnose their lung cancer, eithe

r through CT scans or x-rays, there was a marked difference in five-year survival rates. Those patients diagnosed using CT scans had a 91.2 percent 5-year survival rate while those diagnosed with x-rays demonstrated a 77.8 percent survival rate.

The researchers also divided the patients into groups based on the detection type, including screen detection, symptom detection and incidental detection. The patients that demonstrated the highest five-year survival rates were those diagnosed through screening (79.6 percent) and then those diagnosed because of symptoms (74.6 percent). The patients that were diagnosed incidentally demonstrated the lowest five-year survival rate (64.6 percent).

The study findings demonstrate the impact of screening, particularly though CT-scans, can have on improving patient prognosis by detecting the disease at an early stage. The accuracy of CT scans allow physicians to detect cancerous growths while the tumor is at an early stage and physically smaller, making it more operable. With lung cancer prognosis and survival depending heavily on the stage of the disease upon diagnosis, it is important to keep findings such as these in mind.

Source: International Association for the Study of Lung Cancer

Explore further: Chronic inflammation linked to 'high-grade' prostate cancer

add to favorites email to friend print save as pdf

Related Stories

Early detection of lung cancer

May 03, 2009

New data from several studies evaluating new techniques for early diagnosis and treatment of lung cancer are being presented at the first European Multidisciplinary Conference on Thoracic Oncology (EMCTO) in Lugano, Switzerland ...

Recommended for you

Unraveling the 'black ribbon' around lung cancer

Apr 17, 2014

It's not uncommon these days to find a colored ribbon representing a disease. A pink ribbon is well known to signify breast cancer. But what color ribbon does one think of with lung cancer?

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

E_L_Earnhardt
not rated yet May 04, 2009
That "rays" cause cancer, accelerate cancer, break hydrogen bonds, etc., has been KNOWN for some time!
Also, well known, is that "rays" are electrons with
specific "Speed" and "Spin"! STOP KILLING WOMEN! If you did no more than "cool" a tumor -----!

More news stories

Filipino tests negative for Middle East virus

A Filipino nurse who tested positive for the Middle East virus has been found free of infection in a subsequent examination after he returned home, Philippine health officials said Saturday.

Study says we're over the hill at 24

(Medical Xpress)—It's a hard pill to swallow, but if you're over 24 years of age you've already reached your peak in terms of your cognitive motor performance, according to a new Simon Fraser University study.

NASA's space station Robonaut finally getting legs

Robonaut, the first out-of-this-world humanoid, is finally getting its space legs. For three years, Robonaut has had to manage from the waist up. This new pair of legs means the experimental robot—now stuck ...

Ex-Apple chief plans mobile phone for India

Former Apple chief executive John Sculley, whose marketing skills helped bring the personal computer to desktops worldwide, says he plans to launch a mobile phone in India to exploit its still largely untapped ...

Egypt archaeologists find ancient writer's tomb

Egypt's minister of antiquities says a team of Spanish archaeologists has discovered two tombs in the southern part of the country, one of them belonging to a writer and containing a trove of artifacts including reed pens ...

Airbnb rental site raises $450 mn

Online lodging listings website Airbnb inked a $450 million funding deal with investors led by TPG, a source close to the matter said Friday.