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MicroCT-based virtual histology

Utah and Texas researchers combined miniature medical CT scans with high-tech computer methods to produce detailed three-dimensional images of mouse embryos - an efficient new method to test the safety of medicines and learn how mutant genes cause birth defects or cancer.

8 May 2006

Significant changes in tumor growth can be detected through short interval follow-up

These growths may have important clinical implications in the management of patients, enabling early discontinuation of potentially toxic chemotherapy drugs.

4 May 2006

Image-guided kidney biopsy can diagnose benign kidney tumors and has a low rate of complications

For the study, 407 image-guided kidney lesion biopsies were performed in 377 patients using either CT, ultrasound, or a combination of both to guide a small needle through the skin of the patient to take a sample of the lesion.

3 May 2006

MDCT urography shows potential for detecting bladder cancer without surgery

MDCT urography is a promising technique for detecting bladder tumors both with and without contrast material, helping patients avoid an invasive test, according to a new study by researchers from the University of Michigan Health System in Ann Arbor, MI.

3 May 2006

Low radiation dose still means successful interventional procedures

Radiation dose can be reduced by as much as 88 percent for common interventional radiology procedures and still be safe and effective, a new study shows.

3 May 2006

New technique reduces radiation exposure by 60 percent in abdominal CT of children

By lowering the tube current to account for both the weight and body symmetry of a child, an abdominal CT radiation dose can be reduced by 60% without compromising the image quality, says a new study by researchers from the Children's Hospital of Philadelphia in Pennsylvania.

3 May 2006

CT colonography even safer than previously thought

The safety profile for CT colonography (CTC) is extremely favorable, particularly for the purposes of screening patients with no symptoms and when distending the colon using an automated carbon dioxide technique, a finding that goes against the higher complication rates for CTC reported by other groups, according to a new study.

3 May 2006

Percutaneous image-guided biopsy of renal masses is safe and accurate

For the study, the researchers reviewed 153 kidney biopsies in 126 patients. The researchers found that more than 60% of patients had a change in their treatment--whether surgery, tumor ablation, chemotherapy or radiation--due to biopsy results, and that as many as 75 unnecessary kidney removals were potentially avoided.

3 May 2006

Accuracy of PET-CT for detecting recurrent ovarian cancer is high

The accuracy of PET-CT for detecting recurrent ovarian cancer is high, more accurate even than either CT or PET alone, says a new study by researchers from Massachusetts General Hospital in Boston.

3 May 2006

Coronal reformatted images speed radiologist's body CT readings

Coronal multiplanar reformatted images can replace conventionally used axial images for interpretation in the MDCT evaluation of the GI tract, improving the speed and accuracy of diagnosis

3 May 2006

CT angiography is highly accurate in detecting high-grade artery stenosis

MD-CTA (64-slice CT angiography) is highly accurate in detecting and grading extracranial internal carotid artery (ICA) stenoses in which the artery is closed between 70-90% when compared to color-coded Doppler sonography, power Doppler and B-flow ultrasound

3 May 2006

Initial experience of FDG-PET/CT guided IMRT of head and neck carcinoma

Doctors have discovered that combining images derived from positron emission tomography and computed tomography in the planning and delivery of radiation treatment for patients with head and neck cancer leads to more accurate delivery of the radiation dose and an increased chance for survival.

3 May 2006

Early myocardial enhancement defects (dark spots) on multidetector CT are valuable predictors of myocardial viability

...in patients who have suffered a heart attack, reported doctors from the departments of cardiology and radiology at Rambam Medical Center in Haifa, Israel.

3 May 2006

Transplanted stem cells hoped to be able to regenerate damaged heart muscle in first heart attack victims

Rush cardiologists are hoping that transplanted stem cells can regenerate damaged heart muscle in those who experience a first heart attack. The study involves an intravenous infusion of adult mesenchymal stem cells from healthy donor bone marrow that might possibly reverse damage to heart tissue.

28 Apr 2006

Custom-made bladders produced from patients' own cells

Scientists in the U.S. have produced custom-made bladders grown from patients' own cells which have been have been successfully transplanted and function well.

4 Apr 2006

Body weight alone is not a sufficient indicator of higher risk of mortality in men

A new study by Queen's University shows for the first time that visceral fat in the abdomen is directly associated with a higher risk of mortality in men.

4 Apr 2006

Innovative automatic system stops patients falling through gaps

Every day in hospitals around the country, thousands of patients undergo CT, MRI, X-ray and other kinds of scans, producing detailed images of their bodies. Specially trained doctors "read" those images to look for problems, and then send a report of what they've found to each patient's own doctor.

23 Mar 2006

Positron emission tomography identifies esophageal cancer patients who will respond well to treatment

New research at Wake Forest University Baptist Medical Center shows that Positron Emission Tomography (PET) is more accurate than conventional imaging in identifying patients who have good responses to chemotherapy and radiation treatment - a finding that could one day help some patients avoid surgery.

22 Mar 2006

Computerized tomography guided percutaneous renal cryoablation with the patient under conscious sedation

When an event occurs once, we have a tendency to look at it as a phenomenon, but when it occurs twice, it begins to enter the realm of accepted reality.

21 Mar 2006

Diabetics shown to have increased heart muscle mass

Diabetes strongly increases the risk of heart failure in all ethnic groups, but early effects of diabetes on the heart may differ depending on whether the subjects are white, African-American, Hispanic or Chinese.

9 Mar 2006

CT News and Research

MicroCT-based virtual histology

Significant changes in tumor growth can be detected through short interval follow-up

Image-guided kidney biopsy can diagnose benign kidney tumors and has a low rate of complications

MDCT urography shows potential for detecting bladder cancer without surgery

Low radiation dose still means successful interventional procedures

New technique reduces radiation exposure by 60 percent in abdominal CT of children

CT colonography even safer than previously thought

Percutaneous image-guided biopsy of renal masses is safe and accurate

Accuracy of PET-CT for detecting recurrent ovarian cancer is high

Coronal reformatted images speed radiologist's body CT readings

CT angiography is highly accurate in detecting high-grade artery stenosis

Initial experience of FDG-PET/CT guided IMRT of head and neck carcinoma

Early myocardial enhancement defects (dark spots) on multidetector CT are valuable predictors of myocardial viability

Transplanted stem cells hoped to be able to regenerate damaged heart muscle in first heart attack victims

Custom-made bladders produced from patients' own cells

Body weight alone is not a sufficient indicator of higher risk of mortality in men

Innovative automatic system stops patients falling through gaps

Positron emission tomography identifies esophageal cancer patients who will respond well to treatment

Computerized tomography guided percutaneous renal cryoablation with the patient under conscious sedation

Diabetics shown to have increased heart muscle mass

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