Digging Deeper With CT Imaging: Slice-by-Micro Slice …

Digging deeper with CT imaging: slice-by-micro slice...

Multi-Slice CT Scanners

In the second half of 1998, four manufacturers (GE, Siemens, Toshiba and Picker, now Philips) extended this concept by launching multi-slice CT scanners. All were 3rd generation helical scanners, with low voltage slip rings, capable of acquiring four CT slices in one x-ray tube rotation (see Fig. 1). Additional four-slice models have been introduced by Toshiba and GE. Some basic specifications ...

Multi - slice CT Technology 3

3.3 Multi-slice CT Acquisition and Reconstruction for Body Imaging 52 3.3.1 Defi nition of the Pitch 52 3.3.2 The Cone-Angle Problem in Multi-slice CT 53 3.3.3 Multi-slice Spiral Reconstruction Neglecting the Cone-Beam Geometry 54 3.3.3.1 180° and 360° Multi-slice Linear Interpolation 54 3.3.3.2 z-Filter Approaches 56 3.3.4 Multi-slice Spiral Reconstruction with Cone-Beam Algorithms 58 3.3.4.1 ...

Principles of Multi - slice Cardiac CT Imaging 4

Fast p-NQR Imaging with Slice Selection*

A combination of a new pulse sequence allowing fast data acquisition in the rotating f rame version of NQR (p-NQRI) together with a method for slice selection, is reported. The procedure allows us to record the magnetization evolution during its motion in the rotating f rame. At the same time a zero-crossing external magnetic field gradient is applied in order to select a determined slice of th...