Abstract:
A computer-controlled method for automatically positioning a guide for a biopsy needle for its proper insertion into the body of a patient from a selected point on a surface of the body, so as to enter in a straight line passing through a designated target region within the body, in conjunction with an imaging system utilizing radiation from first and second source positions for deriving first and second radiographic images. The method includes the steps of (a) selecting a first auxiliary plane at an angle &THgr;1; moving the guide within the first auxiliary plane to an angle &phgr;1 so as to cause the guide image on the first image plane to be aligned in a straight line through the target region; (b) storing values for the angles &THgr;1 and &phgr;1; selecting a second, different, auxiliary plane at an angle &THgr;2; (c) moving the guide to an angle &phgr;2 within the second auxiliary plane so as to cause the guide image on the second image plane to be aligned in a straight line through the target region; storing values for the angles &THgr;2 and &phgr;2; calculating, by utilizing values stored for the angles, rotations &agr; and &THgr; so as to derive a first viewing plane &pgr;; and (d) moving the guide within the first viewing plane &pgr; to an angle &phgr;3 so as to cause the guide image on the second image plane to be aligned in a straight line through the target region, whereby the guide is properly aligned.
Abstract:
A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.
Abstract:
Apparatus for determining a proper insertion depth of a biopsy needle so that a sampling end of the needle just reaches to a designated target area within the body comprises at least one straight calibrated pointing device aligned to point through the selected point in a straight line passing through the designated target region. The pointing device exhibits first and second markers along its length such that respective images are formed on a first image plane by utilizing radiation from a radiation source, along with images corresponding to the selected point and the target area. The images are formed along a straight line in this order: (A) the first marker, (B) the second marker, (C) the selected point, and (D) the target region. The apparatus includes an arrangement for measuring distances on the image plane between images (A), (B), (C), and (D) and a calculator for calculating the cross ratio of the distances, whereby the proper insertion depth of the biopsy needle is determined.
Abstract:
A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.
Abstract:
A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.
Abstract:
Apparatus for determining a proper insertion depth of a biopsy needle to be inserted at a selected point on the body of a patient so that a sampling end of the needle just reaches to a designated target area within the body, comprises at least one straight calibrated pointing device, having a pivot point at one end thereof, and aligned to point through the selected point in a straight line passing through the designated target region, an image of the pointing device being formed on each of first and second image planes by utilizing radiation from respective first and second radiation source positions, along with images corresponding to the selected point and the target area. Needles are provided for casting an image on one at least one of the image planes, the needles being pivotably mounted at a further pivot point different from the pivot point of the pointing device and being constrained for movement in plane defined by the pivot point, the further pivot point and by the pointing device.
Abstract:
A method for providing a virtual contrast agent for blood vessels in a body portion for angioscopy comprising deriving data from a 3D model using, for example, magnetic resonance imaging, computerized tomography (CT), and 3D angio. The data is segmented to provide a segmented 3D model of the blood vessels. A first procedure image is made with a contrast agent present. The 3D model is then registered with the first procedural image and “virtual camera parameters” are obtained. The 3D model is rendered and overlaid onto a second procedure image without contrast, whereby a virtual contrast is achieved.
Abstract:
A method and apparatus for providing reports of medical procedures includes a biometric data recorder to record and transmit biometric data of a patient, the biometric data being transmitted with a medical report of the medical procedure. The medical report and biometric data are transmitted as an encrypted transmission to an information center for storage. The medical reports of steps in the medical procedure for a patient are linked using the biometric data even if performed by different medical service providers. Medical reports of plural patients undergoing the procedure are stored, linked according to patient using the patient biometric data. Reports generated from the linked data anonymously report a given patient's status following the procedure. Statistical reports are generated on plural patients undergoing the procedure, and competing procedures are compared using the statistical reports.
Abstract:
A method and system for data dependent multi phase image visualization, includes: acquiring a plurality of series of image data acquisitions; registering the plurality of series of image data acquisitions to a same reference series to create a plurality of registered series; combining information from the registered series to create a new series; creating a further new series by a selection decision based on combination rules from information from the plurality of registered series and the new series; and displaying the further new series.
Abstract:
Systems and methods are provided to record at least a first and a second image of a marking on a surface of an object with a mobile computing device including a processor, a display and a camera with a lens. The lens and the display are located at the same side of the body of the computing device. The first image is taken with a first part of the display illuminating the object and the second image is taken with a second part of the display illuminating the object illuminating the object from different directions. Different illumination directions provide different shadow effects related to ridges and grooves on the surface. Processing the images which are substantially registered allows extraction of markings created by ridges and or grooves on the surface of the object. Computer tablets and smart phones perform the steps of the present invention.