58 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.

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.

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.

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.

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.

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.

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.

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.