Polar maps of the coronary arteries could speed diagnosis if clinicians learn to adjust to their imperfections, according to research presented at the European Congress of Radiology in March.
Polar maps of the coronary arteries could speed diagnosis if clinicians learn to adjust to their imperfections, according to research presented at the European Congress of Radiology in March.
"The problem is that the near vessels are displayed bigger than the farther vessels, particularly around the pole areas and the sides," said Dr. Felix Schoth from Aachen University Hospital in Germany.
Schoth and colleagues used a 16-slice scanner to perform standard CT angiography in 10 subjects. An algorithm provided a maximum intensity projection of the myocardium and the coronary arteries in 3D polar coordinates. The images were then "unfolded" into two dimensions as planar projection polar maps.
The technique rendered arterial visibility that was good proximally, fair medially, and poor distally. It accurately displayed stents and coronary calcifications but showed poor contrast in the ventricles. A perfected technique should skirt time-consuming curved multiplanar reformatted or volume-rendered images of the coronaries, Schoth said.
European Society of Breast Imaging Issues Updated Breast Cancer Screening Recommendations
April 24th 2024One of the recommendations from the European Society of Breast Imaging (EUSOBI) is annual breast MRI exams starting at 25 years of age for women deemed to be at high risk for breast cancer.
Study Reveals Benefits of Photon-Counting CT for Assessing Acute Pulmonary Embolism
April 23rd 2024In comparison to energy-integrating detector CT for the workup of suspected acute pulmonary embolism, the use of photon-counting detector CT reduced radiation dosing by 48 percent, according to newly published research.