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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 6298260 | Respiration responsive gating means and apparatus and methods using the same A method and system for gating therapeutic or diagnostic energy to a tissue volume of a medical patient during a selected portion of the patient's respiratory cycle, to thereby diminish inaccuracies in the assumed spatial position of the tissue volume ari... | 10/02/2001 |
| 6266553 | Spiral scanning computed tomography apparatus, and method for operating same, for cardiac imaging In a computed tomography apparatus, and a method for operating same, for obtaining cardiac images, a spiral scan of a measurement volume containing a patient's heart is conducted, the production of the scanning data during the spiral scanning being synchr... | 07/24/2001 |
| 6233478 | Apparatus and method for constructing computed tomography image slices of an object undergoing cyclic motion Apparatus and method are provided for constructing image slices through a selected object undergoing a cyclic motion wherein a scanner is used for collecting image data associated with the selected object. A probe is provided for detecting a signal from t... | 05/15/2001 |
| 6223068 | Compact radiology instrument The radiology instrument contains a source emitting X-radiation, a radiological image receiver, a chassis arranged between the X-ray source and the image receiver in order to accommodate an object to be radiographed, and a positioning and guiding device w... | 04/24/2001 |
| 6076005 | Respiration responsive gating means and apparatus and methods using the same A method and system for gating therapeutic or diagnostic energy to a tissue volume of a medical patient during a selected portion of the patient's respiratory cycle, to thereby diminish inaccuracies in the assumed spatial position of the tissue volume ari... | 06/13/2000 |
| 6068595 | Control of setting phase-encoding direction in MRI By employing controlled setting of a phase-encoding direction in MRI, for imaging a tissue or blood flow composed of spins whose time T2 is rather short or ranges from 100 to 200 milliseconds, signal levels induced by the blood flow or the like... | 05/30/2000 |
| 5967981 | Time series prediction for event triggering Delays in event detection in time-varying data can be reduced by predicting the time-varying data and then detecting the event in the predicted data. This finds application in the triggering of medical imaging devices, where physiological events can be de... | 10/19/1999 |
| 5747810 | Simultaneous absorption and diffusion tomography system and method using direct reconstruction of scattered radiation A method for the direct reconstruction of an object from measurements of the transmitted intensity of diffusively scattered radiation effected by irradiating the object with a source of continuous wave radiation. The transmitted intensity is related to th... | 05/05/1998 |
| 5630414 | X-ray diagnostics installation for subtraction angiography An X-ray diagnostics installation has an X-ray source and an X-ray image intensifier video chain, including an X-ray image intensifier, a video camera, a control circuit that derives control pulses for producing images of a subject from data supplied ther... | 05/20/1997 |
| 5573012 | Body monitoring and imaging apparatus and method A non-acoustic pulse-echo radar monitor is employed in the repetitive mode, whereby a large number of reflected pulses are averaged to produce a voltage that modulates an audio oscillator to produce a tone that corresponds to the heart motion. The antenna... | 11/12/1996 |
| 5482042 | Medical imaging apparatus A medical imaging apparatus comprises a respiration depth detecting device for detecting a respiration depth of a subject and an indication device for indicating the respiration depth determined by the respiration depth detecting device to the subject. Th... | 01/09/1996 |
| 5433199 | Cardiac functional analysis method using gradient image segmentation A 4D image data set of a living subject is obtained by non-invasive imaging means representing three dimensions and time in relation to the subject's cardiac cycle. In order to determine various vascular parameters, it is useful to segment the image data ... | 07/18/1995 |
| 5431161 | Method and apparatus for information acquistion, processing, and display within a medical camera system A system for acquisition, processing and display of gated SPECT imaging data for use in diagnosing Coronary Artery Disease (CAD) in nuclear medicine. The present invention provides a physician with two parameters for evaluating CAD: information relating t... | 07/11/1995 |
| 5357550 | Apparatus for diagnosing vascular systems in organism An apparatus is specialized in diagnosing a vascular system in an organism. The diagnostic apparatus is preferable especially to inspection of a circulatory system such as a blood vessel. The inspection can be carried out by obtaining a longitudinal struc... | 10/18/1994 |
| 5301672 | Radiological diagnostics system employing a contrast agent In a diagnostics system wherein a radiological image is generated of a patient who has been injected with a contrast agent, the arrival of the contrast agent bolus at the imaging site is identified either directly by detecting the contrast agent, or indir... | 04/12/1994 |
| 5067494 | Device for generating trigger signals for a medical apparatus dependent on the respiratory activity of a patient A device for generating trigger signals for a medical apparatus, used for diagnosis and/or therapy, based on the respiratory activity of a patient includes a spirometer with a measurement transducer disposed therein for measuring respiratory air of a pati... | 11/26/1991 |
| 5030956 | Radar tomography A radar tomography method and apparatus generates a plurality of radar pulses in a transmitter and projects them with an antenna toward a patient. Radar pulses reflected from the patient are picked up by the antenna and conducted to a receiver. Predetermi... | 07/09/1991 |
| 4662379 | Coronary artery imaging system using gated tomosynthesis A method of imaging a blood vessel such as a coronary artery includes the steps of a dual energy providing radiation source and a radiation detector on opposing sides of a target area and at a plurality of angular positions through the target area. The ra... | 05/05/1987 |
| 4547892 | Cardiac imaging with CT scanner The patient's ECG signal is employed in a traverse-and-rotate type CT scanner as a time base for triggering the beginning of a traverse such that the traveling beam reaches the heart at a desired phase of the cardiac cycle. For a purely-rotational-type CT... | 10/15/1985 |
| 4382184 | Apparatus and method for simultaneously displaying relative displacements of a fluctuating biological object X-ray apparatus and method for producing discrete images of a human organ in fluctuating motion, e.g., the heart and related vessels. Each image is derived at a selected time related to the cardiac cycle. The images are independently presented on respecti... | 05/03/1983 |
| 4223384 | Radiography In a computerised tomographic (CAT) X-ray apparatus passage of the radiation through high absorption (bone) regions can change a characteristic of the radiation, such as its frequency spectrum. This can introduce error into the final representation. Corre... | 09/16/1980 |
| 4201223 | Internal body organ motion picture synthesizing apparatus Apparatus for synthesizing motion pictures of a cyclically functioning internal body organ such as a human heart from the monitor control (X, Y, and Z) signals provided by a scintillation camera excited by radiation from a bolus of radiopharmaceutical mat... | 05/06/1980 |
| 4182311 | Method and system for cardiac computed tomography System and method are set forth enabling reconstruction of images of desired "frozen action" cross-sections of the heart or of other bodily organs or similar objects undergoing cyclic displacements. Utilizing a computed tomography scanning apparatus data ... | 01/08/1980 |
| 4037585 | Method of measuring blood flow by radiation A method of measuring relative blood flow through at least a part of the body using penetrating radiation comprises transmitting a plurality of rays at an initial angle or initial mean angle through a planar slice of the body to define a first set of rays... | 07/26/1977 |
| 3993995 | Respiration monitor An apparatus for automatically monitoring the respiration of a subject requiring no physical connection to the subject. The use of such apparatus for automatically triggering an x-ray machine at instants of respiration extrema is also disclosed.... | 11/23/1976 |
