Koninklijke Philips Corporation N.V.

Philips Intellectual Property & Standards Gmbh

Peter Forthmann

Udo Van Stevendaal

Thomas Koehler

Roland Proksa

Holger Schmitt

Thomas Erik Amthor

Michael Grass

Johannes Adrianus Overweg

Axel Thran

Claas Bontus

Sascha Krueger

Falk Uhlemann

Bernd R David

Christoph G Leussler

Ewald Roessl

Peter Boernert

Miha Fuderer

Vincent Jeanne

Tim Nielsen

Peter Vernickel

Julien Senegas

Ulrich Wolfgang Katscher

Daniel Wirtz

Dominic J Heuscher

Erkki Tapani Vahala

Joerg Sabczynski

Thomas Köhler

Jens-Peter Schlomka

Philip Alexander Jonas

Shlomo Gotman

Jürgen Erwin Rahmer

Gerardus Bernardus Jozef Mulder

Philippe Abel Menteur

Matthias Bertram

Ronald Bryan Sharpless

Glen George Pfleiderer

Thirukumaran Thangaraj Kanagasabapathi

Jeffrey Edward Leach

Steffen Wiesner

Colas Schretter

Felix Peeters

Johannes Bathazar Maria Soetens

Schlomo Gotman

Jerry Alden

Joseph C Testa

A shim tray () for a main magnet system of a magnetic resonance examination system comprises a plurality of shim pockets (), of which an individual shim pocket has side walls () forming an open channel (). Two opposite lateral side walls () have insertion profiles () to receive an end shim-element () at least one open channel's end. Essentially the entire volume of the channel of the shim pocket is available to hold passive shim elements.

Passive shim tray for magnetic resonance examination system

The invention provides for a magnetic resonance imaging system component. The magnetic resonance imaging system component comprises an acoustic shield () for a magnetic resonance imaging cylindrical magnet assembly (). The acoustic shield comprises a cylindrical portion () configured for being inserted into a bore () of the magnetic resonance imaging cylindrical magnet assembly and for completely covering the bore of the magnetic resonance imaging system. The cylindrical portion comprises a smooth exposed surface () configured for facing away from the magnetic resonance imaging cylindrical magnet assembly. The cylindrical portion further comprises an attachment surface (). The acoustic shield further comprises an acoustic metamaterial layer () attached to the attachment surface.

Acoustic shield for a magnetic resonance imaging magnet assembly

A magnetic field z-gradient coil is manufactured by inserting elements () into openings () on an outside of an insulating carrier (), wrapping an electrical conductor turn () around the outside of the insulating carrier with one side of the wrapped electrical conductor alongside elements inserted into openings on the outside of the insulating carrier, removing the elements alongside the one side of the wrapped electrical conductor from the openings, and repeating to wrap conductor turns of a z-gradient coil () around the electrically insulating carrier. A transverse magnetic field gradient coil is manufactured by laying electrical conductor () onto a mold () with a keying feature () extending along the conductor engaging a mating keying feature () of the mold that defines a winding pattern (), attaching an insulating back plate () to the resulting coil section opposite from the mold, and removing the mold.

Magnetic field gradient coils with closely packed windings and methods of manufacturing same

A contact-free method of determining biometric parameters and physiological parameters of a subject of interest () to be examined by a medical imaging modality (), comprising steps of taking () a picture by a first digital camera () including a total view of an examination table (); applying () a computer vision algorithm or an image processing algorithm to the picture for determining a biometric parameter of the subject of interest () in relation to the examination table (); taking () at least one picture with a second digital camera (), whose field of view () includes a region of the subject of interest () that is related to the at least one determined biometric parameter; using data indicative of the determined biometric parameter to identify () a subset of pixels of the at least one picture taken by the second digital camera () that define a region of interest () from which at least one physiological parameter of the subject of interest () is to be determined, taking () a plurality of pictures of the region of the subject of interest () with the second digital camera (), and applying () a computer vision algorithm or an image processing algorithm to pictures of the plurality of pictures taken by the second digital camera () for calculating the region of interest () in the pictures of the plurality of pictures for determining the physiological parameter of the subject of interest () during examination; a camera system () for determining, in a contact-free way, biometric parameters and physiological parameters of a subject of interest () to be examined by use of a medical imaging modality () and using such method; and&#x2014;a medical imaging modality () configured for acquisition of scanning data of at least a portion of a subject of interest (), the medical imaging modality () comprising such camera system.

MR fingerprinting for determining performance degradation of the MR system

A cryogenic cooling system () comprising a cryostat (), a two-stage cryogenic cold head () and at least one thermal connection member () that is configured to provide at least a portion of a heat transfer path () from the second stage member () to the first stage member () of the two-stage cryogenic cold head (). The heat transfer path () is arranged outside the cold head (). A thermal resistance of the provided at least portion of the heat transfer path () at the second cryogenic temperature is larger than a thermal resistance of the provided at least portion of the heat transfer path () at the first cryogenic temperature.

Cryogenic cooling system with temperature-dependent thermal shunt

A method includes determining at least one characteristic about a stenosis in a vessel of a patient from image data of the stenosis, mapping the characteristic to a predefined stenosis characteristic to fractional flow reserve value look up table, identifying the fractional flow reserve value in the look up table corresponding to the characteristic, and visually presenting the image data and the identified fractional flow reserve value. A system includes memory storing a pre-defined stenosis characteristic to fractional flow reserve value look up table, a metric determiner () that maps at least one characteristic about a stenosis in a vessel of a patient, which is determined from image data of the stenosis, to a characteristic in the look up table and identifies a fractional flow reserve value corresponding to the characteristic, and a display () that visually presents the image data and the identified fractional flow reserve value.

Determination of a fractional flow reserve (FFR) value for a stenosis of a vessel

The following relates generally to use of magnetic resonance (MR) imaging as guidance in radiation therapy, and more specifically to use of MR imaging as guidance in proton therapy. In some embodiments, a cryogenic dewar is provided with multiple channels allowing a proton beam from a proton beam source to pass through. The proton beam may first be aligned with a first channel, and the dewar may then be rotated along with the proton source. The dewar may then be rotated to align a second channel with the proton beam.

Rotatable magnet for proton therapy

An augmented reality device used in a medical imaging laboratory housing a medical imaging device () includes a headset (), cameras () mounted in the medical imaging laboratory, and directional sensors () mounted on the headset. The cameras generate a panorama image (). Data collected by the directional sensors is processed to determine the viewing direction (). The panorama image and the determined viewing direction are processed to generate an augmented patient view image () in which the medical imaging device is removed, replaced, or made partially transparent, the augmented image is presented on a display () of the headset. The directional sensors may include a headset camera () that provides a patient view image (), which is augmented by removing or making partially transparent any portion of the medical imaging device in the patient view image by substituting corresponding portions of the panorama image.

Augmented display device for use in a medical imaging laboratory

A medical apparatus () includes a magnetic resonance imaging system (), a radiation therapy device () having a gantry () and a radiation source (). A radiation detection system () measures radiation detection data () descriptive of a path and intensity of a radiation beam at an intersection of the radiation beam with at least one surface (&#x2033;) surrounding the subject using at least one radiation detector (&#x2033;). Execution of machine readable instructions causes a processor controlling the medical apparatus to: receive () a treatment plan (), acquire () magnetic resonance data () from the imaging zone using the magnetic resonance imaging system, generate () radiation therapy device control commands () using the magnetic resonance data and the treatment plan, irradiate () the target zone by controlling the radiation therapy device using the radiation therapy device control commands, measure () the radiation detection data during irradiation, and determine a time dependent radiation beam path () and a time dependent radiation beam intensity () using the radiation detection data.

Medical apparatus with a radiation therapy device and a radiation detection system

The invention provides for magnetic resonance imaging system () comprising a superconducting magnet () with a first current lead () and a second current lead () for connecting to a current ramping system (). The magnet further comprises a vacuum vessel () penetrated by the first current lead and the second current lead. The magnet further comprises a magnet circuit () within the vacuum vessel. The magnet circuit has a first magnet circuit connection () and a second magnet circuit connection (). The magnet further comprises a first switch () between the first magnet connection and the first current lead and a second switch () between the second magnet connection and the second current lead. The magnet further comprises a first current shunt () connected across the first switch and a second current shunt () connected across the second switch. The magnet further comprises a first rigid coil loop () operable to actuate the first switch. The first rigid coil loop forms a portion of the first electrical connection. The magnet further comprises a second rigid coil loop () operable to actuate the second switch. The second rigid coil loop forms a portion of the second electrical connection.

Automatic current switching of current leads for superconducting magnets

A system and method determines an isocenter for an imaging scan. The method includes receiving, by a control panel, patient data generated by at least one sensor, the patient data corresponding to dimensions of a body of a patient. The method includes generating, by the control panel, model data as a function of the patient data, the model data representing the body of the patient. The method includes receiving, by the control panel, a target location on the model data, the target location corresponding to a desired position on the body of the patient for performing the imaging scan. The method includes determining, by the control panel, an isocenter for the imaging scan as a function of the target location.

Visual pre-scan patient information for magnetic resonance protocol

The invention relates to an imaging system for imaging an object. Projection data of the object are acquired by using a radiation source emitting primary radiation () from a primary focal spot () and unwanted secondary radiation () from secondary focal spots (). A first image of the object is reconstructed from the acquired projection data, a forward projection of the secondary radiation through the first image is simulated for generating secondary projection data, and a second image is generated based on the acquired projection data and the secondary projection data. Since the secondary projection data, which can generally cause image artifacts, are determined, the reconstruction unit can consider these unwanted secondary projection data while reconstructing the second image, in order to reduce the influence of the secondary projection data on the reconstructed second image, thereby improving the image quality.

Imaging system for imaging an object

An imaging system includes a radiation source that emits radiation that traverses an examination region. A controller activates the radiation source to emit radiation and deactivates the radiation source to stop radiation emission. The controller selectively activates the radiation source to emit radiation at one or more pre-determined angles. In another embodiment, the imaging system includes a data processing component that generates a virtual three dimensional image of an object of interest of the scanned subject based on the image data. In another embodiment, the imaging system is in a communication with a data manipulation and packaging component that generates at least a two dimensional or a three dimensional data set based on the volumetric image data and packages the data set in an object provided to a remote system that manipulates and navigates through the data set.

Interventional imaging and data processing

A medical imaging system includes a generally stationary gantry () and a rotating gantry (), rotatably supported by the generally stationary gantry (), that rotates about a longitudinal axis around an examination region. The medical imaging system further includes a radiation source () that emits a radiation beam that traverses the examination region. The radiation source () is moveably affixed to the rotating gantry () so as to translate in a direction of the longitudinal axis with respect to the rotating gantry () while scanning a subject in the examination region. The medical imaging system further includes a detector array () that detects the radiation beam that traverses the examination region and generates a signal indicative thereof. The detector array () is moveably affixed to the rotating gantry () so as to move in coordination with the radiation source () while scanning the subject in the examination region.

Source and/or detector positioning system

Growing community of inventors

Sandesneben, Germany

Peter Forthmann