http://www.medindia.net/healthnews/Computed-Tomography-news.asp Medindia largest health website in india. en-us Copyright 2013. All Rights Reserved. Wed, 19 Jun 2013 01:30:19 GMT http://www.medindia.net/news/virginia-museum-is-using-ct-scan-to-depict-egyptian-mummies-113942-1.htm To uncover the story behind one of the earliest surviving Egyptian mummies, a Virginia museum is using CT scan. This week, the Virginia Museum of Fine Arts in Richmond partnered with a medical imaging center to complete a CT scan on Tjeby (CHEH-bee), its 4,000-year-old mummy, in hopes of piecing together more information about the mummy itself and better understanding the early history of the mummification process. The information gathered would help provide greater detail of the body, ...]]> http://www.medindia.net/news/virginia-museum-is-using-ct-scan-to-depict-egyptian-mummies-113942-1.htm http://www.medindia.net/news/simple-ct-scan-can-predict-worsening-copd-study-106460-1.htm Simple computed tomography (CT) scan is a strong predictor of the risk of exacerbation of chronic obstructive pulmonary disease (COPD), say researchers. The research team says that an increase in the size of the pulmonary artery relative to the size of the aorta is a valid indicator that a patient with COPD is at risk for exacerbating their disease. These exacerbations of COPD are associated with accelerated loss of lung function, worsened quality of life and increased risk of death. ...]]> http://www.medindia.net/news/simple-ct-scan-can-predict-worsening-copd-study-106460-1.htm http://www.medindia.net/news/CT-Scan-Use-Rises-Sharply-88969-1.htm In emergency rooms, the use of CT scans increased 300 percent in 12 years, finds study. The rate of CT use grew 11 times faster than the rate of ED visits during the study period. The study also showed that the use of CT scans was less common early in the study period, but rose significantly over time. Just 3.2 percent of emergency patients received CT scans in 1996, while 13.9 percent of emergency patients seen in 2007 received them. "This means that by 2007, 1 in 7 ED patients got a CT scan," says first author Keith Kocher, M....]]> http://www.medindia.net/news/CT-Scan-Use-Rises-Sharply-88969-1.htm http://www.medindia.net/news/CT-Scan-in-Children-An-Increasing-Concern-87417-1.htm bComputed Tomography (CT) scanning, also called computerized axial tomography (CAT) scanning, is a medical imaging procedure which uses x-rays to obtain cross-sectional images of the body./b The introduction of computed tomography (CT) has almost revolutionized diagnostic radiology. As the usage of CT scan for diagnosing pediatric ailments rises, the related worries and apprehensions arising due to radiation risks also increase. bA recent study conducted by the Dr....]]> http://www.medindia.net/news/CT-Scan-in-Children-An-Increasing-Concern-87417-1.htm http://www.medindia.net/news/CT-Scan-Technology-Appears-to-Increase-Pulmonary-Embolism-Diagnosis-Rate-84928-1.htm Computed tomography pulmonary angiography (CTPA) meant for the detection of pulmonary embolism, has led to over-diagnosis and over-treatment of the condition, say researchers. The finding published in the Archives of Internal Medicine. The introduction in 1998 of multi-detector row CTPA revolutionized the way physicians approach PE. Many assumed this highly sensitive test would improve outcomes of this deadly disease by detecting and allowing treatment of emboli that were previously missed....]]> http://www.medindia.net/news/CT-Scan-Technology-Appears-to-Increase-Pulmonary-Embolism-Diagnosis-Rate-84928-1.htm http://www.medindia.net/news/CT-Scan-Radiation-can-be-Reduced-With-Video-Game-Processors-71705-1.htm A new way to process X-ray data can help reduce the amount of radiation patients receive during cone beam CT scans. Cone beam CT plays an essential role in image-guided radiation therapy (IGRT), a state-of-the-art cancer treatment. IGRT uses repeated scans during a course of radiation therapy to precisely target tumors and minimize radiation damage in surrounding tissue. Though IGRT has improved outcomes, the large cumulative radiation dose from the repeated scans has raised concerns among physicians and patients....]]> http://www.medindia.net/news/CT-Scan-Radiation-can-be-Reduced-With-Video-Game-Processors-71705-1.htm http://www.medindia.net/news/Plaque-In-Abdominal-CT-Scan-Predictor-Of-Heart-Disease-66448-1.htm Plaque detected in abdominal CT scan could be a strong predictor of coronary artery disease and mortality, according to a Henry Ford Hospital study. Researchers found that patients are nearly 60 percent at risk of having coronary artery disease when the CT scan showed very high levels of abdominal aortic calcium, commonly known as plaque. High levels of the abdominal aortic calcium also increased their risk of dying, researchers say. Conversely, researchers found that the lack of abdominal aortic ...]]> http://www.medindia.net/news/Plaque-In-Abdominal-CT-Scan-Predictor-Of-Heart-Disease-66448-1.htm http://www.medindia.net/news/Study-Says-CT-Scan-is-Cost-effective-in-Screening-for-LAM-Among-Women-With-Collapsed-Lung-65875-1.htm It is cost-effective to do CT scan screening of non-smoking women, ages 25-54, who come to the emergency room for the first time with a collapsed lung in order to diagnose and treat those with lymphangioleiomyomatosis, or LAM, researchers at the University of Cincinnati (UC) have found. This data is being featured in the online edition of the IAmerican Journal of Respiratory and Critical Care Medicine/I. LAM is a rare but serious lung disease that occurs when an unusual type of cell ...]]> http://www.medindia.net/news/Study-Says-CT-Scan-is-Cost-effective-in-Screening-for-LAM-Among-Women-With-Collapsed-Lung-65875-1.htm http://www.medindia.net/news/Image-Quality-of-Multidetector-Computed-Tomography-Scans-Influenced-by-Physiologic-Factors-62686-1.htm A study in the January issue of the IAmerican Journal of Roentgenology/I says that the image quality of multi-detector computed tomography (MDCT) scans, used for the noninvasive detection of coronary artery disease, can be significantly affected by patient characteristics such as ethnicity, body mass index (BMI), and heart rate. The large multicenter international trial study included 291 patients with coronary artery calcification and found that compared with examinations of white patients, ...]]> http://www.medindia.net/news/Image-Quality-of-Multidetector-Computed-Tomography-Scans-Influenced-by-Physiologic-Factors-62686-1.htm http://www.medindia.net/news/Studies-Find-CT-Scan-Radiation-Can-Cause-Cancer-62394-1.htm Two US studies published in the Archives of Internal Medicine have shown that radiation from computed tomographic (CT) scanners can cause cancer decades after patient exposure. CT scans use blasts of X-rays in a test that allows doctors to see a three-dimensional image of a targeted organ or tissue. The first study, undertaken in four San Francisco hospitals, found that "even the median doses (of radiation) are four times higher than they are supposed to be, according to the currently quoted radiation dose for these tests....]]> http://www.medindia.net/news/Studies-Find-CT-Scan-Radiation-Can-Cause-Cancer-62394-1.htm http://www.medindia.net/news/Ex-Smokers-Dont-Go-For-Cigarettes-Despite-Repeat-Negative-CT-Scan-for-Lung-Cancer-61889-1.htm Assurance of a cancer-free status did not prompt people participating in a long-term computerized tomography (CT) lung-cancer screening program to pick up their cigarettes again, researchers wrote in a study published in ICancer Epidemiology, Biomarkers (and) Prevention/I, a journal of the American Association for Cancer Research. The December issue contains a special focus on tobacco. These findings should negate widespread concern in the lung screening community that reassurance provided by ...]]> http://www.medindia.net/news/Ex-Smokers-Dont-Go-For-Cigarettes-Despite-Repeat-Negative-CT-Scan-for-Lung-Cancer-61889-1.htm http://www.medindia.net/news/Cardiac-CT-Scan-may-Help-Diagnose-Significant-Heart-Disease-58159-1.htm A computed-tomography-based protocol that identifies both narrowing of coronary arteries and areas of myocardial ischemia has been developed by a team of researchers led by Massachusetts General Hospital (MGH) radiologists. This new development has the potential of giving a better indication of clinically significant coronary artery disease. Their report appears in the September 15 issue of the IJournal of the American College of Cardiology/I. "This is among the first demonstrations ...]]> http://www.medindia.net/news/Cardiac-CT-Scan-may-Help-Diagnose-Significant-Heart-Disease-58159-1.htm http://www.medindia.net/news/Timely-and-Cost-Effective-CT-Scan-to-Diagnose-Low-risk-Chest-Pain-39499-1.htm An Indian-origin researcher in the US says that CT scanners may offer a cheaper alternative to the current methods of evaluating and diagnosing low-risk chest pain patients in the emergency room, which involve an overnight stay in the observation unit and cardiac stress testing. Dr. Rahul Khare, assistant director of operations at Northwestern Memorial Hospital, points out that a commonly missed and difficult to diagnose cause of chest pain is coronary artery disease. And, he adds, the 64-slice ...]]> http://www.medindia.net/news/Timely-and-Cost-Effective-CT-Scan-to-Diagnose-Low-risk-Chest-Pain-39499-1.htm http://www.medindia.net/news/Early-Signs-of-Heart-Disease-may-Be-Detected-by-New-Non-invasive-CT-Scan-37395-1.htm A new non-invasive technique that could identify early signs of heart disease has been developed by scientists. People who suffer a heart attack have non-calcified plaque, a build-up of soft deposits embedded deep within the walls of the heart's arteries, undetectable by angiography or cardiac stress tests, and prone to rupture without warning. The new study led by a team from Beth Israel Deaconess Medical Centre (BIDMC) used voxel analysis in combination with MDCTA (multi-detector computed ...]]> http://www.medindia.net/news/Early-Signs-of-Heart-Disease-may-Be-Detected-by-New-Non-invasive-CT-Scan-37395-1.htm http://www.medindia.net/news/High-Doses-of-Radiation-from-CT-Scan-Pose-Significant-Cancer-Risk-30021-1.htm It is a common belief that all radiological examinations are essentially harmless, however this isn't true for Computed Tomography (CT) scans as researchers have found that high doses of radiation from the test may increase the risk of developing cancer. David J. Brenner, Ph.D., and Eric J. Hall, Ph.D., from the Center for Radiological Research at Columbia University Medical Center, have argued that the potential carcinogenic effects from using CT scans, the diagnostic tool for providing a three-dimensional ...]]> http://www.medindia.net/news/High-Doses-of-Radiation-from-CT-Scan-Pose-Significant-Cancer-Risk-30021-1.htm http://www.medindia.net/news/Women-Younger-Patients-at-Greater-Lifetime-Cancer-Risk-from-CT-Scan-23907-1.htm The lifetime risk of cancer associated with radiation exposure from a computed tomography (CT scan) coronary angiography varies widely, with the risk greater for women and younger patients, according to an analysis based on computerized simulation models. The study, published in the journal JAMA, was conducted by a team of researchers led by Andrew J. Einstein, at the Columbia University College of Physicians and Surgeons, New York. The researchers estimate the LAR of cancer incidence associated ...]]> http://www.medindia.net/news/Women-Younger-Patients-at-Greater-Lifetime-Cancer-Risk-from-CT-Scan-23907-1.htm http://www.medindia.net/news/CT-Scan-Radiations-may-Lead-to-Cancer-23790-1.htm An analysis based on computerized simulation models suggests that the lifetime risk of cancer associated with radiation exposure from a computed tomography (CT scan) coronary angiography varies widely, with the risk greater for women and younger patients. Coronary artery disease (CAD) is the leading cause of death in men and women in the United States, accounting for 1 in 5 deaths, and a major cause of health care expenditures, with annual costs estimated at (Dollor) 142 billion, according to background information in the article....]]> http://www.medindia.net/news/CT-Scan-Radiations-may-Lead-to-Cancer-23790-1.htm http://www.medindia.net/news/view_news_main.asp?x=20892 Experts at the American College of Radiologists have warned doctors against exposing patients to CT scans unnecessarily because the use of X-ray technology increases the risk of cancer. They suggest that the amount of radiation that patients are exposed to during CT scans may in some cases be equivalent to that received by some survivors of the Hiroshima and Nagasaki atomic bombs. According to some estimates, the radiation exposure a patient receives from a full-body CT scan is often 500 ...]]> http://www.medindia.net/news/view_news_main.asp?x=20892 http://www.medindia.net/news/view_news_main.asp?x=19097 CT scans for lung cancer could expose people to serious risks of injury and even death from needless surgery, researchers in the US now say. As lung cancer is the leading cause of cancer deaths among men and women, doctors generally hope that early detection and treatment could save lives. But a study in New York seems to show CT scans are not of great help that way. Dr. Peter B. Bach, a lung specialist and epidemiologist, who led the study, said conclusively, "We don't think there is a hint of a benefit....]]> http://www.medindia.net/news/view_news_main.asp?x=19097 http://www.medindia.net/news/view_news_main.asp?x=13520 The Department of Health (DoH) has set up a special healthcare committee to look into the safety of CT scans on healthy people. The Department of Health has asked the Committee on the Medical Aspects of Radiation (COMARE) to look into the safety of the CT scans in preventative healthcare to ensure that the long-term benefits are greater than the risks attached to radiation exposure in people with no obvious signs of illness. CT scans are used by several private clinics as a diagnostic tool for detecting early signs of a disease....]]> http://www.medindia.net/news/view_news_main.asp?x=13520 http://www.medindia.net/news/view_news_main.asp?x=7832 Lung cancer is one of the major health problems in US. If detected early then it can be completely cured. Computed tomography (CT) scan identifies lung cancer at the early stage. According to the International Early Lung Cancer Action Program Investigators detection of lung cancer in early stage facilitates an increased survival rate. The size of the tumor is useful in predicting the stage and the spread of the cancer. The researchers tell that the CT scan is a very useful diagnostic tool....]]> http://www.medindia.net/news/view_news_main.asp?x=7832 http://www.medindia.net/news/view_news_main.asp?x=6772 Current smokers or those who have been smoking in the past have been recommended to take up a screening program based on computed tomography (CT scan) to detect lung cancer if any, at an early stage. This would enable provision of an effective treatment and thereby improve the prognosis. The need for the screening is further stressed in individuals with a family history of the dreadful disease. For those of you who have still taken smoking very lightly, we hope at least an article published ...]]> http://www.medindia.net/news/view_news_main.asp?x=6772 http://www.medindia.net/news/view_news_main.asp?x=6428 Radiologists are enabled to get more detailed images of the human body as a result of technological advances made in CT scanners, which also serves to reduce the number of tests which a patient has to undergo. Back in 1987, patients had to undergo a series of stress tests and uncomfortable angiograms before going for a bypass surgery. But recent advances in the technology are bringing about a dramatic rise in image quality and allowing CT scan devices to produce more information. All this ...]]> http://www.medindia.net/news/view_news_main.asp?x=6428 http://www.medindia.net/news/view_news_main.asp?x=5348 New findings released by University of Florida doctors claim that some head and neck cancer patients can safely avoid surgery after radiation therapy if they undergo a CT scan. This scan can predict whether the cancer is under control or not, the researchers claim. These findings were presented at the annual meeting of the American Society for Therapeutic Radiology and Oncology. Stanley L. Liauw, M.D., a resident in radiation oncology at the UF Shands Cancer Center says that they have managed ...]]> http://www.medindia.net/news/view_news_main.asp?x=5348 http://www.medindia.net/news/view_news_main.asp?x=4705 The introduction of Computed Tomography or CT scan has been regarded to be a boon in the field of medical imaging. A recent study conducted shows that unregulated medical screenings using CT scan can cause significant harm. The amount of ionizing radiation to which a patient is exposed during a CT exam is nearly 100 times more than an ordinary X-ray film. This raises serious concerns about high radiation exposure to patients and the subsequent development of cancer. The whole body CT scan ...]]> http://www.medindia.net/news/view_news_main.asp?x=4705 http://www.medindia.net/news/view_news_main.asp?x=4443 New research presented at the annual meeting of the Radiological Society of North America shows computed tomography scans may accurately detect small cancers and stones in the kidneys, bladders and urinary tracts of high-risk patients. BRBR Multi Detector CT Urography ( MDCTU ) scans can be performed using helical CT scanners, which pass X-rays through the body from different angles. Patients are given a contrast dye that allows the scanner to make detailed images of the entire urinary system in slices smaller than a millimeter thick....]]> http://www.medindia.net/news/view_news_main.asp?x=4443 http://www.medindia.net/news/view_news_main.asp?x=3817 Researchers at Saint Louis University have suggested that patients going for PET or CT scan should avoid drinking coffee as caffeine intake interferes with PET/CT image results when there is a known or suspected cancers, Dr. Osman from the university presented his study that looks at the relationship between caffeine intake and uptake by the hear of the tracer used in the PET scan called FDG at the Society of Nuclear Medicine's annual conference held this month in Toronto. Usually the tracer ...]]> http://www.medindia.net/news/view_news_main.asp?x=3817 http://www.medindia.net/news/view_news_main.asp?x=3785 PET scans can detect twice the number of vaginal cancer and cancerous lymphnodes than CT scans. This was the finding from researchers at Washington University School of Medicine in St. Louis. An article has appeared in the July 1st issue of the 'International Journal of Radiation Oncology, Biology, Physics' and this may change the future gold standard for early detection of cancers of this region. According to study author Perry W. Grigsby, M.D., professor of radiation oncology and radiology, ...]]> http://www.medindia.net/news/view_news_main.asp?x=3785 http://www.medindia.net/news/view_news_main.asp?x=3175 Appendectomies are the most common surgical procedures performed worldwide. A model based on the findings of a clinical tool called computed tomography can be used to predict the severity of acute appendicitis, according to a new study. Researchers examined 105 patients, between ages 15 and 89 who underwent an appendectomy within three days of an abdominal CT. Results of the CT were compared with the actual severity of acute appendicitis. The study showed CT, which uses various measurements ...]]> http://www.medindia.net/news/view_news_main.asp?x=3175 http://www.medindia.net/news/view_news_main.asp?x=2934 CT scans deliver much larger radiation doses to the organs than conventional X-rays. The effective dose delivered during a full-body CT scan is nearly 100 times that of a typical mammogram. A new study shows the risk of cancer death from a single full-body CT scan is just slightly less than the cancer death risk of atomic bomb survivors from Hiroshima and Nagasaki in Japan. The study also shows elective annual scans carry much higher risks. Based on anecdotal evidence, the scans are performed ...]]> http://www.medindia.net/news/view_news_main.asp?x=2934 http://www.medindia.net/news/view_news_main.asp?x=1822 A new study by the researchers at the Johns Hopkins University School of Medicine in Baltimore cautioned that Computed Tomography(CT) scans may not be valuable for mass screening for lung cancer. They claimed that the harm of unnecessary testing for lung nodules detected by the CT scan that turn out to be benign, and the costs of the scan far outweigh the number of lives saved by annual full-body CT screening. Following this, the National Cancer Institute has begun an eight-year trial comparing ...]]> http://www.medindia.net/news/view_news_main.asp?x=1822