Computed Tomography News and Research

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Researchers make case for standardized analysis of cardiac imaging

For accuracy's sake, medical professionals should use the same software for comparing and analyzing diagnostic heart images taken from different time periods and laboratories, a team of researchers has concluded.

14 Mar 2008

Researchers find benefit for lymphoma patients in combined PET-CT scanning

Combined positron emission tomography (PET) and computed tomography (CT) imaging of lymphoma patients is a more effective method to evaluate response to radiation therapy, and may help patients avoid unnecessary follow-up treatments, a study by researchers at the University of Southern California (USC) suggests.

13 Mar 2008

Colorectal cancer not always easy to detect by colonoscopy

According to a new study by researchers in the U.S. colonoscopies do not detect all colorectal cancers; they say that flat lesions can be easily overlooked during a colonoscopy.

9 Mar 2008

PET/CT planning beneficial for head and neck cancer patients

Using a combination of positron emission tomography (PET) and computed tomography for radiation therapy treatment planning in head and neck carcinoma patients provides for excellent, local and regional disease control when compared to CT alone, according to a study in the March 1 issue of the International Journal for Radiation Oncology*Biology*Physics, the official journal of the American Society for Therapeutic Radiology and Oncology.

6 Mar 2008

Flat, non-polypoid colorectal neoplasms linked to colorectal cancer

Flat, non-polypoid colorectal neoplasms (NP-CRNs), which may be difficult to detect, appear to be relatively common and may have a greater association with cancer compared with the more routinely diagnosed type of colorectal polyps, according to a study in the March 5 issue of JAMA.

6 Mar 2008

New radiology center puts research scanners in hospital

Whether it's needed to track the activity of a drug, the growth of a tumor, or the progress of a medical disorder, high-tech imaging equipment often is an essential component of advanced clinical research.

28 Feb 2008

Small protein discovered that specifically recognizes tumors responding to chemotherapy

A technique that specifically "tags" tumors responding to chemotherapy may offer a new strategy for determining a cancer treatment's effectiveness within days of starting treatment, according to a new study by Vanderbilt-Ingram Cancer Center investigators.

26 Feb 2008

Unusual case of upper obstructive syndrome

Aorto-duodenal fistulae (ADF) are the most frequent aorto-enteric fistulae (80%) and the most frequent presenting sign of ADF is upper gastrointestinal bleeding (UGI).

25 Feb 2008

A rare diagnosis in the operation room: Kidney atrophy due to duplicated colon in an adult

Gastrointestinal congenital anomalies are rare entities in an adult patient.

25 Feb 2008

New proof-of-principle findings that thymic involution can be reversed in humans

Scientists at the Gladstone Institute of Virology and Immunology (GIVI) and the University of California, San Francisco (UCSF) have found that therapy can be used to stimulate the production of vital immune cells, called "T- cells," in adults with HIV infection.

21 Feb 2008

PET outperforms CT in characterization of lung nodules

Researchers involved in a large, multi-institutional study comparing the accuracy of positron emission tomography (PET) and computed tomography (CT) in the characterization of lung nodules found that PET was far more reliable in detecting whether or not a nodule was malignant.

7 Feb 2008

Safer, more accurate, and more effective radiation therapy for pregnant women

Developing fetuses are extremely sensitive to radiation, which poses an impossible dilemma for expecting mothers in need of screening or treatment for cancer.

20 Dec 2007

PET/CT imaging proves golden for detecting cancer in children

PET/CT imaging exhibits significantly higher sensitivity, specificity and accuracy than conventional imaging when it comes to detecting malignant tumors in children, according to research published in the December issue of the Journal of Nuclear Medicine.

13 Dec 2007

Potential early warning system for lung cancer identified

The study, published in the journal Thorax, found that changes in the blood can be detected which signal the presence of lung cancer, and that these changes can be present years before outward symptoms become apparent.

29 Nov 2007

Defensive medicine leads to overuse of CT scans

Computed Tomography (CT) scans are an increasingly used X-ray-based tool for providing a three-dimensional view of a particular organ or tissue.

29 Nov 2007

The health risk posed by excessive CT scans

Scientists in the United States have expressed concern about the number of computed tomography or CT scans now being performed.

29 Nov 2007

Unprecedented increase in the use of radiologic exams on pregnant women

The past decade has seen an unprecedented increase in the use of radiologic exams on pregnant women, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

27 Nov 2007

Positron emission tomography may improve lung cancer diagnosis

Tumor imaging with positron emission tomography (PET) may improve the diagnosis and subsequent treatment of lung cancer patients, according to a review published online November 27 in the Journal of the National Cancer Institute.

27 Nov 2007

Gastric bypass complications

Obese patients who suffer complications after gastric bypass surgery may face further health risks because their weight exceeds the limits of diagnostic imaging equipment, according to a study presented at the annual meeting of the Radiological Society of North America (RSNA).

27 Nov 2007

Pregnant women may be having too many high-tech scans

A new study has found that pregnant women are having more high-tech imaging examinations and are thereby exposing their babies to higher doses of radiation than a decade ago.

27 Nov 2007