59 results about "Plan treatment" patented technology

An integrated system is described in which digital image data of a patient, obtained from a variety of image sources, including CT scanner, X-Ray, 2D or 3D scanners and color photographs, are combined into a common coordinate system to create a virtual three-dimensional patient model. Software tools are provided for manipulating the virtual patient model to simulation changes in position or orientation of craniofacial structures (e.g., jaw or teeth) and simulate their affect on the appearance of the patient. The simulation (which may be pure simulations or may be so-called “morphing” type simulations) enables a comprehensive approach to planning treatment for the patient. In one embodiment, the treatment may encompass orthodontic treatment. Similarly, surgical treatment plans can be created. Data is extracted from the virtual patient model or simulations thereof for purposes of manufacture of customized therapeutic devices for any component of the craniofacial structures, e.g., orthodontic appliances.

The invention relates to planning orthodontic treatment for a patient, including surgery, using biological constrains such as those arising from bone, soft tissue, and roots of patient's teeth. The invention disclosed herein provides capability to vary the movement ratio between the teeth and bone and soft tissue through treatment simulation to assess the risk factor associated with a particular treatment plan. The invention further provides capability to monitor results of the treatment to determine the actual movement ratio between the teeth and bone and soft tissue and update the database. Additionally, a method and apparatus are disclosed enabling an orthodontist or a user to create an unified three dimensional virtual craniofacial and dentition model of actual, as-is static and functional anatomy of a patient, from data representing facial bone structure; upper jaw and lower jaw; facial soft tissue; teeth including crowns and roots; information of the position of the roots relative to each other; and relative to the facial bone structure of the patient; obtained by scanning as-is anatomy of craniofacial and dentition structures of the patient with a volume scanning device; and data representing three dimensional virtual models of the patient's upper and lower gingiva, obtained from scanning the patient's upper and lower gingiva either (a) with a volume scanning device, or (a) with a surface scanning device. Such craniofacial and dentition models of the patient can be used in optimally planning treatment of a patient.

A method is described for taking a three-dimensional virtual model of the dentition and associated anatomical structures of a patient and isolating individual teeth from the rest of the anatomical structure, e.g. gums, to thereby produce individual, virtual three-dimensional tooth objects. The individual tooth objects can be displayed on the display of an orthodontic workstation and moved independently from each other, and thereby form the basis of planning treatment for the patient. The individual, virtual three-dimensional tooth objects are created by comparing the virtual model of the dentition to virtual, three-dimensional template teeth that are stored in memory in a process described in detail herein. The template teeth can include roots as well as crowns. The template teeth can be stored objects acquired from some external source or alternatively developed from a database of patient scans. Virtual three-dimensional brackets are also stored in the memory of the workstation. The virtual brackets can be placed on the virtual teeth and moved relative to the teeth as needed in a preliminary step in treatment planning.

A method and system for treating tissue with a surgical device includes the steps of displaying an image created by collecting imaging data from an imaging device, selecting at least one tissue target from the image, determining the effective treatment volume of the surgical device and determining a treatment modality for treating the tissue target with the surgical device, where the treatment modality is made up of at least one target treatment volume. The method may also include the steps of determining the position and orientation of the imaging device, the image and the surgical device, indicating the trajectory of the surgical device with respect to the image on the display screen, inserting the surgical device in the patient based upon the trajectory and treating the tissue target. The method may further include indicating the target treatment volumes on the display screen.

Improved devices, systems, and methods for diagnosing, planning treatments of, and / or treating the refractive structures of an eye of a patient incorporate results of prior refractive corrections into a planned refractive treatment of a particular patient by driving an effective treatment vector function based on data from the prior eye treatments. The exemplary effective treatment vector employs an influence matrix which may allow improved refractive corrections to be generated so as to increase the overall accuracy of laser eye surgery (including LASIK, PRK, and the like), customized intraocular lenses (IOLs), refractive femtosecond treatments, and the like.

A method to assist in the selection of optimum beam orientations for radiation therapy when a planning treatment volume (PTV) is adjacent to one or more organs-at-risk (OARs). A mathematical analysis of the boundaries between the PTV and OARs allows the definition of a continuum of pairs of gantry and table angles whose beam orientations have planes that are essentially parallel to those boundaries, and can, therefore, separate the PTV from the OARs when a multi-leaf collimator is used in the therapy. The Radiation Oncologist can then select one or more pairs of gantry and table angles from the continuum as input to a beam optimization step. The selected angles can deliver highly uniform dose to the PTV, while minimizing the radiation dose to the OARs.

Methods and computer executable instructions are disclosed for ultimately developing a dosimetry plan for a treatment volume targeted for irradiation during cancer therapy. The dosimetry plan is available in "real-time" which especially enhances clinical use for in vivo applications. The real-time is achieved because of the novel geometric model constructed for the planned treatment volume which, in turn, allows for rapid calculations to be performed for simulated movements of particles along particle tracks there through. The particles are exemplary representations of neutrons emanating from a neutron source during BNCT. In a preferred embodiment, a medical image having a plurality of pixels of information representative of a treatment volume is obtained. The pixels are: (i) converted into a plurality of substantially uniform volume elements having substantially the same shape and volume of the pixels; and (ii) arranged into a geometric model of the treatment volume. An anatomical material associated with each uniform volume element is defined and stored. Thereafter, a movement of a particle along a particle track is defined through the geometric model along a primary direction of movement that begins in a starting element of the uniform volume elements and traverses to a next element of the uniform volume elements. The particle movement along the particle track is effectuated in integer based increments along the primary direction of movement until a position of intersection occurs that represents a condition where the anatomical material of the next element is substantially different from the anatomical material of the starting element. This position of intersection is then useful for indicating whether a neutron has been captured, scattered or exited from the geometric model. From this intersection, a distribution of radiation doses can be computed for use in the cancer therapy. The foregoing represents an advance in computational times by multiple factors of time magnitudes.

Occlusal contact between upper and lower virtual three-dimensional teeth of a patient when the upper and lower arches are in an occlused condition are determined and displayed to the user on a user interface of a general purpose computing device. Various techniques for determining occlusal contacts are described. The areas where occlusal contact occurs is displayed on the user interface in a readily perceptible manner, such as by showing the occlusal contacts in green. If the proposed set-up would result in a interpenetration of teeth in opposing arches, such locations of interpenetration are illustrated in a contrasting color or shading (e.g., red). The ability to calculate distances and display occlusal contacts in a proposed set-up assists the user in planning treatment for the patient. The process can be extended to interproximal contact detection as well. The concepts also apply to dental prosthetics, such as crowns, fillings and dentures.

The present embodiments relate to producing a radiation treatment plan. In one embodiment, the method may include specifying a dataset in which an object requiring to be irradiated is represented; determining a target volume requiring to be irradiated within the object; ascertaining a metric identifying a density heterogeneity for a region that will be struck by the planned treatment beam; and determining as a function of the ascertained metric a safety margin for the target volume requiring to be irradiated.

A method and system for treating tissue with a surgical device includes the steps of displaying an image created by collecting imaging data from an imaging device, selecting at least one tissue target from the image, determining the effective treatment volume of the surgical device and determining a treatment modality for treating the tissue target with the surgical device, where the treatment modality is made up of at least one target treatment volume. The method may also include the steps of determining the position and orientation of the imaging device, the image and the surgical device, indicating the trajectory of the surgical device with respect to the image on the display screen, inserting the surgical device in the patient based upon the trajectory and treating the tissue target. The method may further include indicating the target treatment volumes on the display screen.

In some embodiments, a method includes receiving, in a processor, information indicative of (i) a treatment plan defining planned treatment beams, (ii) a patient volume relative to a reference, (iii) ideal intersections of the planned treatment beams with the patient volume at the time the patient is to be treated, (iv) any constraints that prevent achievement of the recommended repositioning using only the patient support, (v) an allowable change to a gantry position from a planned value and an allowable change to a collimator position from a planned value; defining, in the processor, a plurality of alternatives based at least in part on the information indicative of any constraints of the patient support and the information indicative of allowable movement of the gantry and collimator, each alternative defining a modified patient support position and modified beams, each modified beam being based at least in part on a respective one of the planned treatment beams, the change to the position of the gantry for the respective planned treatment beam and the change to the position of the collimator for the respective planned treatment beam; determining, in the processor, for each modified beam of each alternative, an intersection of the patient volume and the modified beam, with the patient volume positioned on the patient support and the patient support having the modified patient support position defined by the alternative; and defining, in the processor, for each alternative, a measure of difference between the ideal intersections and the intersections for the modified beams of the alternative.

The invention provides a system, method and downhole tool for stimulating a borehole of wells in reservoir. The invention allows a user to determine the type of stimulation adequate to promote production in a reservoir, and apply one or more treatments to each individual well by activating one or more modules comprised in the downhole tools. Furthermore, the tool comprises sensors that collect information in real-time of the state of the reservoir. The data collected is processed and newly acquired data is compared with previously acquired data to assess the development of production and further plan treatment strategies to optimize production.

Method and workstation automatically designing an arch-wire including compensations for auxiliary appliances or biological constraints exerting unknown forces to achieve a pre-planned treatment goal are disclosed. The adjusted customized arch-wire is designed after an initial customized arch-wire has been used to treat a patient and is at or near equilibrium. The initial custom arch-wire is first designed by producing a 3D computer-based, geometrical model of a patient's dentition, locating brackets on the digital tooth model, moving the digital tooth models to planned final positions and orientations, and then calculating a wire which fits in the slots of the brackets while the teeth are in their planned final positions and exerts no forces on the brackets. After a period of time the teeth will move under the force of the wire and will eventually move into positions such that the forces from all appliances and biological systems are in equilibrium. If the teeth are not in the final planned positions at that point in time, the adjusted custom arch-wire is designed and applied.

Occlusal contact between upper and lower virtual three-dimensional teeth of a patient when the upper and lower arches are in an occlused condition are determined and displayed to the user on a user interface of a general purpose computing device. Various techniques for determining occlusal contacts are described. The areas where occlusal contact occurs is displayed on the user interface in a readily perceptible manner, such as by showing the occlusal contacts in green. If the proposed set-up would result in a interpenetration of teeth in opposing arches, such locations of interpenetration are illustrated in a contrasting color or shading (e.g., red). The ability to calculate distances and display occlusal contacts in a proposed set-up assists the user in planning treatment for the patient. The process can be extended to interproximal contact detection as well. The concepts also apply to dental prosthetics, such as crowns, fillings and dentures.

The present embodiments relate to producing a radiation treatment plan. In one embodiment, the method may include specifying a dataset in which an object requiring to be irradiated is represented; determining a target volume requiring to be irradiated within the object; ascertaining a metric identifying a density heterogeneity for a region that will be struck by the planned treatment beam; and determining as a function of the ascertained metric a safety margin for the target volume requiring to be irradiated.

A system to treat a patient comprises a user interface that allows a physician to view an image of tissue to be treated in order to develop a treatment plan to resect tissue with a predefined removal profile. The image may comprise a plurality of images, and the planned treatment is shown on the images. The treatment probe may comprise an anchor, and the image shown on the screen may have a reference image marker shown on the screen corresponding to the anchor. The planned tissue removal profile can be displayed and scaled to the image of the target tissue of an organ such as the prostate, and the physician can adjust the treatment profile based on the scaled images to provide a treatment profile in three dimensions. The images shown on the display may comprise segmented images of the patient with treatment plan overlaid on the images.

A method to assist in the selection of optimum beam orientations for radiation therapy when a planning treatment volume (PTV) is adjacent to one or more organs-at-risk (OARs). A mathematical analysis of the boundaries between the PTV and OARs allows the definition of a continuum of pairs of gantry and table angles whose beam orientations have planes that are essentially parallel to those boundaries, and can, therefore, separate the PTV from the OARs when a multi-leaf collimator is used in the therapy. The Radiation Oncologist can then select one or more pairs of gantry and table angles from the continuum as input to a beam optimization step. The selected angles can deliver highly uniform dose to the PTV, while minimizing the radiation dose to the OARs.

A method and apparatus are disclosed enabling an orthodontist or a user to create an unified three dimensional virtual craniofacial and dentition model of actual, as-is static and functional anatomy of a patient, from data representing facial bone structure; upper jaw and lower jaw; facial soft tissue; teeth including crowns and roots; information of the position of the roots relative to each other; and relative to the facial bone structure of the patient; obtained by scanning as-is anatomy of craniofacial and dentition structures of the patient with a volume scanning device; and data representing three dimensional virtual models of the patient's upper and lower gingiva, obtained from scanning the patient's upper and lower gingiva either (a) with a volume scanning device, or (a) with a surface scanning device. Such craniofacial and dentition models of the patient can be used in optimally planning treatment of a patient.

To plan tumor treating fields (TTFields) therapy, a model of a patient's head is often used to determine where to position the transducer arrays during treatment, and the accuracy of this model depends in large part on an accurate segmentation of MRI images. The quality of a segmentation can be improved by presenting the segmentation to a previously-trained machine learning system. The machine learning system generates a quality score for the segmentation. Revisions to the segmentation are accepted, and the machine learning system scores the revised segmentation. The quality scores are used to determine which segmentation provides better results, optionally by running simulations for models that correspond to each segmentation for a plurality of different transducer array layouts.

The invention belongs to the technical field of soil evaluation, and relates to a method for evaluating a soil ecological service function in an urbanization process. Firstly, an index system appliedto soil ecological service function evaluation in urbanization is established based on a PSR model, and then the index system and a fuzzy comprehensive evaluation method are used for evaluating the state of the soil ecological service function of the area and analyzing the influence mechanism of urbanization on the soil ecological service function of the area. According to the invention, urbanization factors and soil ecological service function factors are combined; the soil ecological service function in urbanization is evaluated by using fuzzy comprehensive evaluation; according to the method, the soil ecological system is constructed on the basis of the comprehensive level, and the priority of the treatment index is obtained through analysis, so that planning treatment measures and construction schemes are put forward in a targeted manner on the basis of the overall level, sustainable soil management measures are formulated, the soil ecological system is efficiently treated and protected on the management level, and the deficiency in the aspect of soil ecological service functions is filled.

The invention discloses a method for reversely planning a treatment plan. The method comprises the following steps of: A, inputting a medical image of a patient; B, drawing the tissue profiles of the body surface of the patient, a target body and organs at risks; C, setting a reserve planning target; D, establishing an initial treatment plan; E, setting an iterative optimization parameter; F, generating an individual treatment plan; G, computing an individual treatment plan dose field; H, computing the degree of adaptability; I, selecting a current optimal plan; J, if evolution times are greater than population evolution times, turning to a step M, or otherwise turning to a next step; K, evolving a population to a new generation of population and turning to the step G; and M, stopping population evolution and outputting a current optimal plan. The invention also discloses a treatment plan system. A method for computing the degree of adaptability is used for selecting an optimal plan, so that the evolution efficiency of the population can be increased, and an optimizing process is efficient.

A method of using a shielding device with an applicator includes inserting the distal portion of the shielding device to a treatment site of a patient, the shield being made of plastic, imaging the treatment site, planning treatment of the treatment site based on the imaging, setting up the patient for treatment, imaging the treatment site, removing the distal portion of the shielding device from the treatment site, exchanging the shield made of plastic with a shield made of tungsten, inserting the distal portion of the shielding device to the treatment site, the shield being made of tungsten, imaging the treatment site, and performing the treatment.

The embodiment of the invention discloses a method for achieving the position verification of a treatment center, which is used for verifying the position of the treatment center, wherein the method comprises the following steps of: controlling the movement of a treatment bed so that a the second position marking device points to a mark point, and obtaining the first position of the mark point; reading the position difference value between the position of an initial mark center and the position of a planned treatment center, wherein the treatment bed is controlled to move to a first treatmentposition according to the position difference value, and the second position of the mark point is obtained through the first position of the mark point; according to the corresponding relation betweena treatment position and a CT scanning position, controlling the treatment bed to move to a first CT scanning position, obtaining a third position of the mark point through the second position of themark point, and carrying out CT scanning; determining the position of the a target treatment center in the CT image by using the third position of the mark point, and obtaining the position difference value between the position of the target treatment center and the position of the planned treatment center of the treatment plan image; controlling the treatment bed to move to a second treatment position based on the position difference value.

The embodiment of the invention discloses a method and device for verifying the position of a therapeutic center, and the method and device are used for achieving the more convenient position verification of a therapeutic center of a medical accelerator. The method comprises the steps: controlling a treatment bed to move to an initial position, wherein the initial position and the position of an initial mark center have the corresponding relation; reading the position difference between the position of the initial mark center and the position of a planned therapeutic center, controlling the treatment bed to move to the target position from the initial position according to the position difference, so as to enable second position marking equipment to point to the position of a target mark point, wherein the position of the target mark point is used for setting a mark point; controlling the treatment bed to move to a CT scanning position for CT scanning to obtain the CT data outputted through the CT scanning; determining the position of a target therapeutic center through the position of the mark point in the CT data, and obtaining the difference between the position of the target therapeutic center and the position of the planned therapeutic center; controlling the treatment bed to move to the target position when the difference between the position of the target therapeutic center and the position of the planned therapeutic center is less than a first threshold value, and completing the verification of the position of the treatment center.

Systems, devices, and methods for administering healthcare to a user or patient based on analysis of user-specific respiratory and oximetry parameters is disclosed. Additional parameters specific to the user, the user's health condition, or the user's current or planned treatment are optionally included in the analysis. The user inputs parameter values on a healthcare monitoring device. The device communicates such values to a healthcare information hub, which pre-processes the values into data sets and forwards the data sets to a healthcare server. The hub performs preliminary analysis of the parameter values and provides a preliminary report to the user that indicates a characterization of the user's health condition (e.g., diagnosis, prognosis, suggested preliminary therapy regimen, etc) or whether further parameter values should be input. The healthcare server analyzes the datasets received from the information hub, optionally including additional data sets (e.g., environmental parameters local to the user, demographic data related to the user, the user's medical history, etc), and infers an instruction for the user. The instruction is relayed to the patient via the information hub and directs the patient to use the monitoring device to obtain further respiratory or oxygenation parameter values, follow a therapy regimen for the user's health condition, or various partial or complete combinations of both.

The invention provides a directional movement line combined processing method and directional movement line combined processing system. The method comprises the following steps of: S1, establishing a route planning treatment platform so as to make a plurality of routes containing at least two point targets; S2, setting point target tasks according to each made route; S3, judging whether the set tasks constitute a task link; S4, if the set tasks do not constitute a task link, performing task docking, and returning to the S2 if the set tasks constitute a task link; and S5, judging whether the docked tasks are successfully docked, returning the S4 if the butted tasks are not successfully docked, and if the docked tasks are successfully docked, completing current route setting, and pushing each point target task in each route to a corresponding point target terminal or a mobile phone client side. A route planning treatment platform comprises a task setting unit, a route setting unit, a route point target calibration unit, a route timing unit and a route counting unit. The routes combined by the method can randomly be combined into routes with different themes and different styles according to the existing point targets, and same point targets can be used by different routes.