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The classic essential text on anatomy...

MRI

Obtaining Images with MRI

V F Murphy< a> Monday 26th May 2003

Slice Selection Slice selection is effected by two factors. The first is the bandwidth of the B1 RF pulse, and the second is the gradient throughout the field of view. The smaller the bandwidth shorter the pulse , the thinner the slice selected. The FOV gradient (z axis) intersects at its null point with the slice selection pulse to find the origin of the slice. Slice selection occurs simultaneously with the B1 pulse. Spatial Encoding The spatial encoding of the selected slice is effected by me…

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The Development of Medical Imaging

Ron Stemple Thursday 1st January 1970

Medical imaging came to be at the turn of the twentieth century with the discovery of X-Rays and their power to penetrate the skin. Their short wave lengths and high energy allowed physicians to see broken bone, and chest X-Rays were used to in the early diagnosis of tuberculosis.

Computed Tomography, CT Scans, or CAT Scans Computed Axial Tomography were the second generation of X-Rays. Tomos is Greek for slice or section , graphia is describing. As named it describes an image of a particul…