Method and apparatus for cardiac radiological examination in coronary angiography
First Claim
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1. A method of radiological examination comprising:
- introducing a contrast medium with the aid of a pigtail catheter simultaneously in a left coronary artery and in a right coronary artery from the root of an aorta and, in parallel;
acquiring a sequence of dynamic images of propagation of the contrast medium in the left and right coronary arteries with procession of an image plane, upon acquisition of the images, on a given path; and
acquiring a new dynamic image sequence with the procession of the image plane, without introduction of contrast medium.
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Abstract
A method of cardiac radiological examination for coronarography comprises the steps of:
- a) introducing contrast medium simultaneously in the left coronary artery and in the right coronary artery from the aortic root and, in parallel,
- b) acquiring a sequence of dynamic images of the propagation of the contrast medium in the left and right coronary arteries with a displacement of the image plane, during the acquisition of said images, along a determined trajectory (E28). The contrast medium can be introduced in a cyclic manner during the acquisition of dynamic images, each cycle of introduction corresponding to a phase of closure of the aortic valve in the cardiac rhythm. 3D and 4D images with optimal efficiency can be obtained in the use of contrast medium. An injection device for producing the above cycles is synchronized with the introduction of the contrast medium.
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Citations
45 Claims
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1. A method of radiological examination comprising:
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introducing a contrast medium with the aid of a pigtail catheter simultaneously in a left coronary artery and in a right coronary artery from the root of an aorta and, in parallel; acquiring a sequence of dynamic images of propagation of the contrast medium in the left and right coronary arteries with procession of an image plane, upon acquisition of the images, on a given path; and acquiring a new dynamic image sequence with the procession of the image plane, without introduction of contrast medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40)
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37. An apparatus comprising:
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means for providing a source of radiation to an anatomical structure; means for detecting the radiation alter pausing through the anatomical structure; means for providing an image of the anatomical structure after the radiation has passed through the anatomical structure; means for injection of a contrast medium with a pigtail catheter for cardiac radiology simultaneously in a left coronary and a right coronary from the root of an aorta; means for guiding the catheter by a signal detecting cardiac rhythms, so as to inject the contrast medium during cycles synchronized with given phases of the cardiac rhythm; means for acquiring a sequence of dynamic images of propagation of the contrast medium in the left and right coronary arteries with procession of an image plane, upon acquisition of the images, in a given path; and means for acquiring a new dynamic image sequence with the procession of the image plan, without introduction of contrast medium.
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41. A method of radiological examination comprising:
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before introducing a contrast medium in a left coronary artery and in a right coronary artery from the root of an aorta acquiring a dynamic image sequence with procession of an image plane upon acquisition of the image sequence, on a given path; introducing a contrast medium with the aid of a pigtail catheter simultaneously in the left coronary artery and in to right coronary artery from the root of the aorta and, in parallel; acquiring a further sequence of dynamic images of propagation of the contrast medium in the left and right coronary arteries with procession of the image plane, upon acquisition of the further images, on the given path. - View Dependent Claims (42, 43, 44)
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45. An apparatus for radiological examination comprising:
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means for providing a source of radiation to an anatomical structure; means for detecting the radiation alter passing through the anatomical structure; means for providing an image of the anatomical structure after the radiation has passed through the anatomical structure; means for injection of a contrast medium with a pigtail catheter for cardiac radiology simultaneously in a left coronary and a right coronary from the root of an aorta; means for guiding the catheter by a signal detecting cardiac rhythms, so as inject the contrast medium during cycles synchronized with given phases of the cardiac rhythm; means for acquiring a dynamic image sequence with procession of an image plane upon acquisition of the image sequence, on a given path before introducing the contrast medium in the left coronary artery and in the right coronary artery from the root of the aorta; means for acquiring a sequence of dynamic images of propagation of the contrast medium in the left and right coronary arteries with procession of an image plane, upon acquisition of the images, in a given path; and means for acquiring a new dynamic image sequence with the procession of the image plane, after introducing the contrast medium and without addition of the contrast medium.
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Specification