Computed Tomography News and Research

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New type of imaging system illuminates tumors to nearly one-trillionth of a meter

Doctors' quest to see what is happening inside a living body has been hampered by the limits on detecting tiny components of internal structures and events.

1 Apr 2008

Scans spot hidden tumors in Li-Fraumeni syndrome

Researchers at Dana-Farber Cancer Institute report that full-body PET/CT scanning detected unsuspected, treatable tumors in 3 of 15 patients with Li-Fraumeni syndrome (LFS), a rare genetic cancer syndrome for which no screening tests have been recommended.

19 Mar 2008

New technique improves outcome for living donor liver transplants

The University of Alberta Hospital (UAH) is one of only a few centers in Canada that perform living donor liver transplantation, a surgical procedure developed in the late 1980s that expands the organ donor pool. About 80 liver transplants are done a year in Alberta, 10 of those being living-donor.

19 Mar 2008

Long-term follow-up after percutaneous pulmonary radiofrequency ablation

Radiofrequency ablation (RFA) - an interventional treatment that "cooks" and kills lung cancer tumors with heat - greatly improves survival time from primary or metastatic inoperable lung tumors, according to a study released at the Society of Interventional Radiology's 33rd Annual Scientific Meeting.

18 Mar 2008

New robotic interventional imaging technology holds promise of improved cancer care

New research released at the Society of Interventional Radiology's (SIR) Annual Scientific Meeting in Washington, D.C., this week, holds promise of a new interventional imaging capability using advanced robotics provided by Siemens Healthcare (www.siemens.com/healthcare), to improve the value of chemoembolization in treating cancer.

From Siemens Healthineers 18 Mar 2008

Routinely used diagnostic approaches: only limited diagnostic sensitivity for bile duct cancer?

Surgery is the only curative treatment in patients with bile duct cancer.

14 Mar 2008

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