Toshiba sets 'dynamic volume' as new CT frontier

November 1, 2008 Diagnostic Imaging. Vol. 30 No. 11 Toshiba sets 'dynamic volume' as new CT frontier Aquilion One scanner covers 16 cm to allow whole-organ images with temporal uniformity By Doug Ryan Mr. Ryan is senior director of the CT business unit for Toshiba America Medical Systems. Early CT systems delivered insights about the body’s anatomy that were previously impossible. The following generations of scanners provided new capabilities to cover more anatomical area and acquire volume data sets in a single short breath-hold, an evolution that leaped forward in the late 1990s with the introduction of the multirow detector. This gave clinicians the ability to acquire isotropic volumetric data using thin slices that could be viewed with equally high resolution in any plane. Although this advanced form of CT has progressed rapidly since its introduction, even the newest such scanners are limited to 8 cm per gantry rotation and, therefore, still require helical scanning. Their limited coverage means the volumes acquired for whole-organ interpretation and perfusion studies are not temporally uniform, because each portion of the volume is acquired at different moments in time.

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