Method and system for magnetic resonance imaging

Details Method and system for magnetic resonance imaging Method and system for magnetic resonance imaging

1986-10-31

1988-05-24

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

047468653

ABSTRACT:
A magnetic resonance imaging system has an excitation section, a signal collecting section, a first image processor, a maximum value detector, a threshold setting section, and a second image processor. The excitation section applies predetermined magnetic fields to a patient to excite a magnetic resonance phenomenon therein. The signal collecting section collects magnetic resonance signals produced by the magnetic resonance phenomenon. The first image processor obtains original image pixel data representing the distribution of magnetic resonance data, from the magnetic resonance signals. The maximum value detector detects the maximum amplitude value in original image pixel data. The threshold setting section sets a threshold value in accordance with the maximum amplitude value. The second image processor performs predetermined arithmetic processing using original image pixel data having an amplitude exceeding the threshold value, to thereby obtain processed image data from the original image pixel data.

REFERENCES:
patent: 3873909 (1975-03-01), Ernst
patent: 4070708 (1978-01-01), Smallcombe

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