Disclosed are systems, computer software, and methods for generating a relative electron density map (RED) from a magnetic resonance imaging (MRI) scan. This can include obtaining an MRI scan of a portion of a patient and segmenting a first region and a second region in the MRI scan. A RED map can then be generated from the MRI scan by assigning a first RED to the first region, assigning a second RED to the second region, and assigning REDs to unsegmented regions in the MRI scan based on intensities in the MRI scan.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61N 5/10 - RadiothérapieTraitement aux rayons gammaTraitement par irradiation de particules
Systems, methods, and computer software are disclosed that can include receiving a treatment prescription for a patient, obtaining a diagnosis-driven magnetic resonance imaging guided radiotherapy treatment and planning workflow (MRgRT&P workflow) associated with the treatment prescription from a workflow library, the diagnosis-driven MRgRT&P workflow having a parameter list comprising parameters utilized for MRI-guided radiation therapy. With the diagnosis-driven MRgRT&P workflow, any of the following can be performed: imaging with the MRI-guided radiation therapy system utilizing radiation therapy imaging parameters in the parameter list, generating a radiation therapy treatment plan utilizing radiation therapy planning parameters in the parameter list, and/or controlling an MRI-guided radiation therapy system utilizing radiation therapy delivery parameters in the parameter list.
Systems, methods, and computer software relating to gating using non-parallel imaging planes, determining accumulated dose to tissues during radiotherapy with actual beam delivery information, stopping/adjusting/reoptimizing therapy based on such accumulated doses and the generation and use of prognostic motion models and prognostic-motion adapted radiation treatment plans are disclosed.
Systems, methods, and computer software are disclosed that allow the automatic recalling of imaging parameters from computer memory for controlling an MRI system to perform treatment-day scans of a patient on a treatment couch in a radiotherapy system, prior to treatment. The treatment-day scans can be automatically initialized and the MRI system can then be controlled to perform the treatment-day scans according to the recalled imaging parameters. Reoptimized radiation treatment plan(s) can be automatically generated and predicted doses to anatomical structures of the patient based on the plan(s) can be displayed. Clinicians can be enabled to perform numerous reoptimization tasks simultaneously through parallel workflow interfaces and then a radiation therapy device can be controlled to deliver radiation according to a selected radiation treatment plan.
RF coil assemblies are disclosed that include multiturn loops formed of conductors configured to receive RF signals from a patient during MRI. The multiturn loops include an inner loop and an outer loop that both lie substantially in a plane of the RF coil assembly. The inner loop is at least partially nested within the outer loop.
Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61N 5/10 - RadiothérapieTraitement aux rayons gammaTraitement par irradiation de particules
G01R 33/28 - Détails des appareils prévus dans les groupes
G01R 33/3815 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des électro-aimants avec des bobines supraconductrices, p. ex. leurs alimentations
G01R 33/385 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des bobines de champ magnétique à gradient
G01R 33/381 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des électro-aimants
G01R 33/565 - Correction de distorsions d'image, p. ex. dues à des inhomogénéités de champ magnétique
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
G01R 33/38 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Adaptive radiotherapy medical apparatus and systems comprising radiotherapy apparatus used for adaptive diagnostic, therapeutic and radiographic purposes operated via a console screen and a remote physician screen or clinician screen; radiotherapy treatment devices used for treatment planning and adaptive treatment planning operated via a console screen and a remote physician screen or clinician screen; radiotherapy treatment devices used for delivery of modulated doses of radiation to a volume in a body operated via a console screen and a remote physician screen or clinician screen. Software as a service (saas) services featuring software for use in remote computer access control by healthcare professionals of MRI diagnostic apparatus; software as a service (saas) services featuring software for use in remote computer access for the creation or transmission of images, video or data relating to a medical treatment for diagnostic or clinical use via private cloud computing for medical professionals; providing a secure, web-based service featuring technology that enables healthcare professionals to remotely access data obtained from a radiotherapy apparatus; providing a website featuring technology enabling healthcare professionals for use to remotely access and control an image guided radiation therapy device that is equivalent to the non-remote experience for use in medicine; providing temporary use of online non-downloadable cloud computing software for use by healthcare professionals for remote access to an image guided radiation therapy device for use in medicine; providing temporary use of online non-downloadable cloud computing software for use by healthcare professionals for remote access to on-table adaptive radiotherapy medical apparatus and systems.
Systems for guiding line(s) including blocks through which the line(s) run. The blocks can include inner and outer guides with line running through both the inner and outer guides. The guides may include rollers, and an inner guide may be at least partially nested within an outer guide. The systems may be configured so that at least one of the blocks can move when the line moves and so that the first block and second block create tension in the line.
A magnetic resonance imaging (MRI) system having a resistive, solenoidal electromagnet for whole-body MRI may include ferromagnetic material within an envelope of the electromagnet, i.e. the volumetric area surrounding the electromagnet bore comprising conductors generating a main electromagnetic field. The system can be configured to have a field strength of at least 0.05 Tesla and its main electromagnetic field can be generated by layers of conductors instead of bundles. Certain electromagnet designs may be fabricated using non-metallic formers, such as fiberglass, and can be constructed to form a rigid object with the layers of conductors by fixing all together with an epoxy. The electromagnet may be configured to have two separated halves, which may be held apart by a fixation structure such as carbon fiber. The power supply for certain electromagnets herein may have current fluctuations, at frequencies of 180 Hz or above, of at least one part per ten thousand without requiring an additional current filter.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61N 5/10 - RadiothérapieTraitement aux rayons gammaTraitement par irradiation de particules
G01R 33/381 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des électro-aimants
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Downloadable computer software for the creation or transmission of images, video or data relating to a medical treatment. Medical system, namely, an image guided radiation therapy device for use in medicine and computer software and hardware sold as a unit therewith; MRI diagnostic apparatus; radiotherapy apparatus; image guided surgery apparatus; medical imaging apparatus for the creation or transmission of images, video or data relating to a medical treatment for diagnostic or clinical use. Providing non-downloadable computer software for the creation or transmission of images, video or data relating to a medical treatment.
A photon therapy delivery system can deliver radiation therapy to a patient via a photon beam. The system can utilize a controller configured to facilitate delivery of radiation therapy via a photon beam and also a particle beam. This can include receiving radiation therapy beam information for radiation therapy treatment of a patient utilizing the particle beam and photon beam. Also, patient magnetic resonance imaging (MRI) data can be received during the radiation therapy treatment. Utilizing the patient MRI data, real-time calculations of a location of dose deposition for the particle beam and for the photon beam can be determined taking into account interaction properties of soft tissues through which the particle beam passes.
Medical equipment and devices, namely, magnetic resonance imaging (MRI) system comprised primarily of a radiation therapy device and medical imaging software for therapeutic use; medical system, namely, an image guided radiation therapy device for use in medicine and computer software and hardware sold as a unit therewith; magnetic resonance imaging (MRI) apparatus for medical therapeutic purposes; radiotherapy apparatus; medical imaging apparatus for the creation or transmission of images, video or data relating to a medical treatment for therapeutic use.
Medical system, namely, an image guided radiation therapy device for use in medicine and computer software and hardware sold as a unit therewith; MRI diagnostic apparatus; image guided surgery apparatus; medical imaging apparatus for the creation or transmission of images, video or data relating to a medical treatment for diagnostic or clinical use; medical imaging apparatus for the creation or transmission of images useful for modifying a patient's treatment plan to match the patient at the time of treatment; medical equipment and devices, namely, magnetic resonance imaging (MRI) system comprised primarily of a radiation therapy device and medical imaging software for therapeutic use; radiotherapy apparatus; medical imaging apparatus for the creation or transmission of images, video or data relating to a medical treatment for therapeutic use.
Medical equipment and devices, namely, magnetic resonance imaging (MRI) system comprised primarily of a radiation therapy device and medical imaging software for therapeutic use; medical system, namely, an image guided radiation therapy device for use in medicine and computer software and hardware sold as a unit therewith; magnetic resonance imaging (MRI) apparatus for medical therapeutic purposes; radiotherapy apparatus; medical imaging apparatus for the creation or transmission of images, video or data relating to a medical treatment for therapeutic use.
16.
REDUCTION OF ARTIFACTS IN MAGNETIC RESONANCE IMAGING BY CREATING INHOMOGENEITY IN THE MAGNETIC FIELD AT GRADIENT NULL POSITION OF AN MRI SYSTEM
Apparatuses, methods, and computer program products for reducing an appearance of an artifact such as cusp artifact, annefact, foldover artifact, feather artifact or peripheral signal artifact in an image generated by a magnetic resonance imaging (MRI) system are disclosed. The apparatus includes a magnetic field generating device configured to create an inhomogeneity in the magnetic field at gradient null position of an MRI system and prevent at least one out-of-field excitation during imaging.
A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.
A61B 6/04 - Mise en position des patientsLits inclinables ou similaires
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
09 - Appareils et instruments scientifiques et électriques
Produits et services
Equipment, namely, a multi-leaf collimator for use in radiotherapy medical systems; equipment, namely, collimator for use in an image guided radiation therapy device for use in medicine; equipment, namely, collimator for use in image guided surgery apparatus; equipment, namely, collimator for use in MRI diagnostic apparatus; collimators, namely, optical instruments for calibrating, focusing and aligning medical devices for the creation or transmission of images, video or data relating to a medical treatment for diagnostic or clinical use.
Medical equipment and devices, namely, magnetic resonance imaging (MRI) system comprised primarily of a radiation therapy device and medical imaging software for therapeutic use; medical system, namely, an image guided radiation therapy device for use in medicine and computer software and hardware sold as a unit therewith; radiotherapy apparatus; medical imaging apparatus for the creation or transmission of images, video or data relating to a medical treatment for therapeutic, namely, non-invasive treatment of cancers and lesions throughout the body.
Reference data relating to a portion of a patient anatomy during patient motion can be acquired from a magnetic resonance imaging system (MRI) to develop a patient motion library. During a time of interest, tracking data is acquired that can be related to the reference data. Partial volumetric data is acquired during the time of interest and at approximately the same time as the acquisition of the tracking data. A volumetric image of patient anatomy that represents a particular motion state can be constructed from the acquired partial volumetric data and acquired tracking data.
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
G01R 33/56 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne
G01R 33/565 - Correction de distorsions d'image, p. ex. dues à des inhomogénéités de champ magnétique
G01R 33/567 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne débloquées par des signaux physiologiques
Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
G01R 33/38 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient
G01R 33/381 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des électro-aimants
G01R 33/3815 - Systèmes pour produire, homogénéiser ou stabiliser le champ magnétique directeur ou le champ magnétique à gradient utilisant des électro-aimants avec des bobines supraconductrices, p. ex. leurs alimentations
G01R 33/483 - Systèmes d'imagerie RMN avec sélection de signaux ou de spectres de régions particulières du volume, p. ex. spectroscopie in vivo
G01R 33/563 - Amélioration ou correction de l'image, p. ex. par des techniques de soustraction ou d'établissement de moyenne de matériaux en mouvement, p. ex. angiographie à écoulement contrasté
G01R 33/565 - Correction de distorsions d'image, p. ex. dues à des inhomogénéités de champ magnétique
A system has a linear accelerator, ion pump and a compensating magnet. The ion pump includes an ion pump magnet position, an ion pump magnet shape, an ion pump magnet orientation, and an ion pump magnet magnetic field profile. The compensating magnet has a position, a shape, an orientation, and a magnetic field profile, where at least one of the position, shape, orientation, and magnetic field profile of the compensating magnet reduce at least one component of a magnetic field in the linear accelerator resulting from the ion pump magnet.
Particle radiation therapy and planning utilizing magnetic resonance imaging (MRI) data. Radiation therapy prescription information and patient MRI data can be received and a radiation therapy treatment plan can be determined for use with a particle beam. The treatment plan can utilize the radiation therapy prescription information and the patient MRI data to account for interaction properties of soft tissues in the patient through which the particle beam passes. Patient MRI data may be received from a magnetic resonance imaging system integrated with the particle radiation therapy system. MRI data acquired during treatment may also be utilized to modify or optimize the particle radiation therapy treatment.
A collimating system for collimating a radiation beam having a first multileaf collimator and a second multileaf collimator configured such that the radiation beam will pass through the first multileaf collimator before passing through the second multileaf collimator, and pass through the second multileaf collimator before hitting its target. The leaves of the first multileaf collimator and the leaves of the second multileaf collimator may be configured to move independently of one another.
A61N 5/10 - RadiothérapieTraitement aux rayons gammaTraitement par irradiation de particules
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
An ion chamber has a chamber having an interior volume. There is a first electrode and a second electrode in the chamber and separated by a gap. A collector electrode is positioned between the first electrode and the second electrode. The collector electrode is shaped to occlude a portion of the first electrode from the second electrode.
G01T 1/185 - Mesure de l'intensité de radiation avec des aménagements de chambre d'ionisation
G01T 1/29 - Mesure effectuée sur des faisceaux de radiations, p. ex. sur la position ou la section du faisceauMesure de la distribution spatiale de radiations
26.
PLANNING AND CONTROL FOR MAGNETIC RESONANCE GUIDED RADIATION THERAPY
Magnetic resonance (MR) guided radiation therapy (MRgRT) enables control over the delivery of radiation based on patient motion indicated by MR imaging (MRI) images captured during radiation delivery. A method for MRgRT includes: simultaneously using one or more radiation therapy heads to deliver radiation and an MRI system to perform MRI; using a processor to determine whether one or more gates are triggered based on at least a portion of MRI images captured during the delivery of radiation; and in response to determining that one or more gates are triggered based on at least a portion of the MRI images captured during the delivery of radiation, suspending the delivery of radiation.
A phase correlation method (PCM) can be used for translational and/or rotational alignment of 3D medical images even in the presence of non-rigid deformations between first and second images of a registered volume of a patient.
