Medical examination installation with improved image contrast
First Claim
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1. A medical installation for examining a patient comprising:
- means adapted for subjecting at least a portion of said patient to an examination field during an exposure time;
means for detecting said examination field attenuated by said patient;
means connected to said means for detecting for generating a visual image of said portion of said patient; and
means for intermittently injecting contrast agent into said patient at least during said exposure time at a selected frequency.
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Abstract
A medical installation for examining a patient irradiates at least a portion of the patient with an examination field, and detects the attenuated field and generates an image therefrom. During exposure of the patient to the examination field, a contrast agent injector is operated to intermittently inject contrast agent into the patient at a selected frequency. The image is generated of the patient at an image pick-up frequency, and the frequency of injection of the contrast agent may be matched to, or differ from, the image pick-up frequency. The liquid injected into the patient will have alternating sections with and without contrast agent following in succession.
54 Citations
8 Claims
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1. A medical installation for examining a patient comprising:
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means adapted for subjecting at least a portion of said patient to an examination field during an exposure time; means for detecting said examination field attenuated by said patient; means connected to said means for detecting for generating a visual image of said portion of said patient; and means for intermittently injecting contrast agent into said patient at least during said exposure time at a selected frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for examining a patient comprising the steps of:
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placing at least a portion of said patient in an examination field for an exposure time; detecting said examination field attenuated by said patient; intermittently injecting contrast agent into said patient at a selected frequency during said exposure time; and generating an image of said portion of said patient from signals from said means for detecting.
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Specification