CT

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Open High-field MRI

As part of a research and development project, doctors at the University Hospital Magdeburg, Germany, are treating oncology patients with local minimally invasive surgery (MIS) which, for the first time, can be carried out under radiological image control using high-field magnetic resonance imaging (MRI). The system offers excellent image quality under extremely favourable, radiation-free…

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PET/CT and children

PET/CT imaging exhibits significantly higher sensitivity, specificity and accuracy than conventional imaging when it comes to detecting malignant tumours in children, according to research published in the Journal of Nuclear Medicine (12/07).

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Algorithms could cut CT costs & exposure

A German-US R&D collaboration is to commercialize a CT image reconstruction system that will yield enhanced image quality but with a lower radiation dose when compared with standard CT systems. Although initial applications are being lined up in industrial materials testing, talks are already under way with medical imaging vendors keen to exploit the technology in a clinical setting.

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Philips unveils iCT

The Philips flagship product at RSNA, the 256-slice Brilliance iCT scanner, allows radiologists to produce high-quality images with exceptional acquisition speed, including complete coverage of the heart and brain. It is so powerful it can capture an image of the entire heart in just two beats, while incorporating Philips technology that has reduced radiation doses by up to 80 percent.

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On show at RSNA 2007

Visage PACS/CS, a scalable PACS solution based on web and thin client technology with fully integrated clinical applications, is to be demonstrated at this year's RSNA in Chicago, along with a comprehensive portfolio of life sciences products and services from Visage Imaging, a subsidiary of Mercury Computer Systems Inc.

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Radiation Treatment Planning

Radiotherapy treatment planning relies on transversal CT images. They form a basis for treatment planning, dose calculation and increasingly the plan localization for external radiation therapy, called CT simulation. A dedicated CT scanner for radiotherapy plan simulation is one of the most essential pieces of equipment in a modern radiotherapy department. In contrast to external beam…

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Heart-Rate Adaptive CT Image Reconstruction

The advent of multislice computed tomography has made coronary artery imaging with computed tomography (CT) a clinical reality. When a CT scanner with 16 detector rows is used, scan times are within the breathholding capabilities of most patients. The latest generation of CT scanners with 64 detector rows has reduced the scan time to 6-10 seconds, which is suitable for examining all but the most…

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Cardiac CT

Along with a high local resolution, the cardiac CT imaging also requires a high time resolution where the image data acquisition must be synchronised with the cardiac cycle by means of parallel ECG recording, and the measuring volume must be acquired in a single breathhold cycle. The multi-slice CT copes well with these requirements as it allows for acquiring continuous volume data sets of the…

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Technical Insights into the Dual-slice CT

In 1999, the Aquillion/MULTI and Asteion/MULTI multi-slice systems with highly integrated 34-channel detector system, both consisting of a total of 30,464 detector elements, were introduced. On the basis of such a structured detector matrix, a new image reconstruction procedure was used. This so called MUSCOT (Multislice Conebeam Tomography) procedure made the dream of an isotropic voxel in the…

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